Eddy Current Limited Partnership

New Zealand

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IPC Class
H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type 34
B60L 7/28 - Eddy-current braking 12
A62B 1/08 - Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brake mechanisms for the winches or pulleys 11
H02K 7/10 - Structural association with clutches, brakes, gears, pulleys or mechanical starters 8
H02K 16/00 - Machines with more than one rotor or stator 7
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Status
Pending 1
Registered / In Force 37
Found results for  patents

1.

Assembly to control or govern relative speed of movement between parts

      
Application Number 17651521
Grant Number 11628373
Status In Force
Filing Date 2022-02-17
First Publication Date 2022-07-21
Grant Date 2023-04-18
Owner Eddy Current Limited Partnership (New Zealand)
Inventor
  • Diehl, Andrew Karl
  • Wright, Kevin A

Abstract

Described herein is an assembly and methods of use thereof for controlling or governing the relative speed of motion between the assembly parts via eddy current formation. The assembly and methods also may minimize the number of parts required and may minimize the number of moving parts thereby increasing the mechanical durability of the assembly compared to art designs that may have more moving parts and greater part complexity.

IPC Classes  ?

  • A62B 1/06 - Devices for lowering persons from buildings or the like by making use of rope-lowering devices
  • A63G 21/20 - Slideways with movably suspended cars, or with cars moving on ropes, or the like
  • H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
  • A62B 35/00 - Safety belts or body harnessesSimilar equipment for limiting displacement of the human body, especially in case of sudden changes of motion

2.

Tuning of a kinematic relationship between members

      
Application Number 17702510
Grant Number 11632016
Status In Force
Filing Date 2022-03-23
First Publication Date 2022-07-21
Grant Date 2023-04-18
Owner EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
Inventor
  • Diehl, Andrew Karl
  • Allington, Christopher James

Abstract

Described herein is a device comprising members in a kinematic relationship. The kinematic relationship is at least partially governed by at least one magnetically induced force that introduces a force threshold that, in effect, provides a threshold to part movement and confers a degree of hysteresis, preventing movement until a sufficiently large energizing force is applied. The effect may be further altered by use of an additional magnetically induced force interaction with at least one further member to urge or slow movement once started and/or to prevent movement once a new position is reached.

IPC Classes  ?

  • H02K 7/10 - Structural association with clutches, brakes, gears, pulleys or mechanical starters
  • H02K 7/104 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with eddy-current brakes
  • B60L 7/28 - Eddy-current braking
  • B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposesMonitoring operating variables, e.g. speed, deceleration or energy consumption
  • F16D 43/14 - Internally controlled automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial componentInternally controlled automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses themselves being the clutching members
  • B60R 22/343 - Belt retractors, e.g. reels with electrically actuated locking means
  • H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type

3.

Tuning of a kinematic relationship between members

      
Application Number 16953070
Grant Number 11316404
Status In Force
Filing Date 2020-11-19
First Publication Date 2021-03-25
Grant Date 2022-04-26
Owner EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
Inventor
  • Diehl, Andrew Karl
  • Allington, Christopher James

Abstract

Described herein is a device comprising members in a kinematic relationship. The kinematic relationship is at least partially governed by at least one magnetically induced force that introduces a force threshold that, in effect, provides a threshold to part movement and confers a degree of hysteresis, preventing movement until a sufficiently large energizing force is applied. The effect may be further altered by use of an additional magnetically induced force interaction with at least one further member to urge or slow movement once started and/or to prevent movement once a new position is reached.

IPC Classes  ?

  • H02K 7/104 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with eddy-current brakes
  • B60L 7/28 - Eddy-current braking
  • B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposesMonitoring operating variables, e.g. speed, deceleration or energy consumption
  • F16D 43/14 - Internally controlled automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial componentInternally controlled automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses themselves being the clutching members
  • B60R 22/343 - Belt retractors, e.g. reels with electrically actuated locking means
  • H02K 7/10 - Structural association with clutches, brakes, gears, pulleys or mechanical starters
  • H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type

4.

Line dispensing device with Eddy current braking for use with climbing and evacuation

      
Application Number 15939969
Grant Number 11123580
Status In Force
Filing Date 2018-03-29
First Publication Date 2020-10-08
Grant Date 2021-09-21
Owner Eddy Current Limited Partnership (New Zealand)
Inventor
  • Allington, Christopher James
  • Diehl, Andrew Karl
  • Robertson, Bruce John

Abstract

Line dispensing devices include a coupling transmission, a retraction mechanism, and a rotor that rotates around a shaft. Rotation of the rotor causes a portion of at least one pivotable member to move into and out of a magnetic field.

IPC Classes  ?

  • A63B 69/00 - Training appliances or apparatus for special sports
  • A62B 1/08 - Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brake mechanisms for the winches or pulleys
  • H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
  • A62B 1/10 - Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brake mechanisms for the winches or pulleys mechanically operated
  • H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
  • H02K 16/00 - Machines with more than one rotor or stator
  • H02K 7/12 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with auxiliary limited movement of stators, rotors or core parts, e.g. rotors axially movable for the purpose of clutching or braking

5.

Assembly to control or govern relative speed of movement between parts

      
Application Number 16799339
Grant Number 11266917
Status In Force
Filing Date 2020-02-24
First Publication Date 2020-08-20
Grant Date 2022-03-08
Owner Eddy Current Limited Partnership (New Zealand)
Inventor
  • Diehl, Andrew Karl
  • Wright, Kevin A.

Abstract

Described herein is an assembly and methods of use thereof for controlling or governing the relative speed of motion between the assembly parts via eddy current formation. The assembly and methods also may minimize the number of parts required and may minimize the number of moving parts thereby increasing the mechanical durability of the assembly compared to art designs that may have more moving parts and greater part complexity.

IPC Classes  ?

  • A62B 1/06 - Devices for lowering persons from buildings or the like by making use of rope-lowering devices
  • A63G 21/20 - Slideways with movably suspended cars, or with cars moving on ropes, or the like
  • H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
  • A62B 35/00 - Safety belts or body harnessesSimilar equipment for limiting displacement of the human body, especially in case of sudden changes of motion

6.

Braking mechanisms

      
Application Number 16691509
Grant Number 12268904
Status In Force
Filing Date 2019-11-21
First Publication Date 2020-05-21
Grant Date 2025-04-08
Owner EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
Inventor
  • Allington, Christopher James
  • Diehl, Andrew Karl
  • Robertson, Bruce John

Abstract

An eddy-current mechanism including a rotor rotatable about a rotor axis at least one electrically conductive material coupled to the rotor for rotation therewith, at least one magnet configured to apply a magnetic field extending at least partially orthogonal to the plane of rotation of the conductive member, and characterised in that upon rotation of the rotor, the conductive member is configured to move at least partially radially from the rotor axis into the applied magnetic field.

IPC Classes  ?

  • H02K 7/104 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with eddy-current brakes
  • A62B 1/08 - Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brake mechanisms for the winches or pulleys
  • A62B 1/10 - Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brake mechanisms for the winches or pulleys mechanically operated
  • A63B 69/00 - Training appliances or apparatus for special sports
  • F16D 59/00 - Self-acting brakes, e.g. coming into operation at a predetermined speed
  • H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
  • H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
  • H02K 49/10 - Dynamo-electric clutchesDynamo-electric brakes of the permanent-magnet type
  • H02K 7/12 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with auxiliary limited movement of stators, rotors or core parts, e.g. rotors axially movable for the purpose of clutching or braking
  • H02K 16/00 - Machines with more than one rotor or stator

7.

Assembly to control or govern relative speed of movement between parts

      
Application Number 16378463
Grant Number 10603596
Status In Force
Filing Date 2019-04-08
First Publication Date 2019-08-01
Grant Date 2020-03-31
Owner Eddy Current Limited Partnership (New Zealand)
Inventor
  • Diehl, Andrew Karl
  • Wright, Kevin A.

Abstract

Described herein is an assembly and methods of use thereof for controlling or governing the relative speed of motion between the assembly parts via eddy current formation. The assembly and methods also may minimize the number of parts required and may minimize the number of moving parts thereby increasing the mechanical durability of the assembly compared to art designs that may have more moving parts and greater part complexity.

IPC Classes  ?

  • A62B 1/06 - Devices for lowering persons from buildings or the like by making use of rope-lowering devices
  • A63G 21/20 - Slideways with movably suspended cars, or with cars moving on ropes, or the like
  • H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
  • A62B 35/00 - Safety belts or body harnessesSimilar equipment for limiting displacement of the human body, especially in case of sudden changes of motion

8.

Tuning of a kinematic relationship between members

      
Application Number 16124688
Grant Number 10873242
Status In Force
Filing Date 2018-09-07
First Publication Date 2019-06-06
Grant Date 2020-12-22
Owner EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
Inventor
  • Diehl, Andrew Karl
  • Allington, Christopher James

Abstract

Described herein is a device comprising members in a kinematic relationship. The kinematic relationship is at least partially governed by at least one magnetically induced force that introduces a force threshold that, in effect, provides a threshold to part movement and confers a degree of hysteresis, preventing movement until a sufficiently large energizing force is applied. The effect may be further altered by use of an additional magnetically induced force interaction with at least one further member to urge or slow movement once started and/or to prevent movement once a new position is reached.

IPC Classes  ?

  • H02K 7/104 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with eddy-current brakes
  • B60L 7/28 - Eddy-current braking
  • B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposesMonitoring operating variables, e.g. speed, deceleration or energy consumption
  • F16D 43/14 - Internally controlled automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial componentInternally controlled automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses themselves being the clutching members
  • B60R 22/343 - Belt retractors, e.g. reels with electrically actuated locking means
  • H02K 7/10 - Structural association with clutches, brakes, gears, pulleys or mechanical starters
  • H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type

9.

Braking mechanisms

      
Application Number 15586111
Grant Number 10065054
Status In Force
Filing Date 2017-05-03
First Publication Date 2017-09-28
Grant Date 2018-09-04
Owner EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
Inventor
  • Allington, Christopher James
  • Diehl, Andrew Karl
  • Robertson, Bruce John

Abstract

An eddy-current braking mechanism including a rotor, rotatable about a rotor axis; at least one electrically conductive member coupled to the rotor for rotation therewith; at least one magnet configured to apply a magnetic field extending at least partially orthogonal to the plane of rotation of the conductive member, and characterized in that upon rotation of the rotor, the conductive member is configured to move at least partially radially from the rotor axis into the applied magnetic field.

IPC Classes  ?

  • A62B 1/08 - Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brake mechanisms for the winches or pulleys
  • A62B 1/10 - Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brake mechanisms for the winches or pulleys mechanically operated
  • H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
  • H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
  • H02K 16/00 - Machines with more than one rotor or stator
  • A63B 69/00 - Training appliances or apparatus for special sports
  • H02K 7/12 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with auxiliary limited movement of stators, rotors or core parts, e.g. rotors axially movable for the purpose of clutching or braking

10.

Tuning of a kinematic relationship between members

      
Application Number 15504632
Grant Number 10110089
Status In Force
Filing Date 2015-08-18
First Publication Date 2017-08-17
Grant Date 2018-10-23
Owner EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
Inventor
  • Diehl, Andrew Karl
  • Allington, Christopher James

Abstract

Described herein is a device comprising members in a kinematic relationship. The kinematic relationship is at least partially governed by at least one magnetically induced force that introduces a force threshold that, in effect, provides a threshold to part movement and confers a degree of hysteresis, preventing movement until a sufficiently large energizing force is applied. The effect may be further altered by use of an additional magnetically induced force interaction with at least one further member to urge or slow movement once started and/or to prevent movement once a new position is reached.

IPC Classes  ?

  • H02K 7/104 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with eddy-current brakes
  • B60L 7/28 - Eddy-current braking
  • B60R 22/343 - Belt retractors, e.g. reels with electrically actuated locking means
  • H02K 7/10 - Structural association with clutches, brakes, gears, pulleys or mechanical starters
  • B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposesMonitoring operating variables, e.g. speed, deceleration or energy consumption
  • F16D 43/14 - Internally controlled automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial componentInternally controlled automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses themselves being the clutching members
  • H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type

11.

A VARIABLE BEHAVIOUR CONTROL MECHANISM FOR A MOTIVE SYSTEM

      
Application Number NZ2016050200
Publication Number 2017/105255
Status In Force
Filing Date 2016-12-16
Publication Date 2017-06-22
Owner EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
Inventor
  • Diehl, Andrew Karl
  • Scott, Peter
  • Woods, Benjamin
  • Frost, Lincoln

Abstract

Variable behaviour control mechanism with a variety of motion characteristics, the mechanism comprising means to measure a plurality of motion characteristics and to activate systems when a threshold of the motion characteristics is reached. The mechanism described is, for example, a vehicle seat belt and the mechanism minimises or prevents unwanted activation of line extension or retraction of the seat belt. A first mechanism is described where activation occurs between at least one primary system and at least one secondary system when a combination of the sensed motion characteristics achieves a threshold. A second mechanism is described where activation occurs between at least one primary system and at least one secondary system when at least one sensed motion characteristic achieves a threshold, the threshold being modified based on at least one further motion characteristic. A method of use of the above mechanisms is also described.

IPC Classes  ?

  • G01P 15/08 - Measuring accelerationMeasuring decelerationMeasuring shock, i.e. sudden change of acceleration by making use of inertia forces with conversion into electric or magnetic values
  • B60R 22/40 - Belt retractors, e.g. reels self-locking in an emergency responsive only to vehicle movement
  • B60R 21/0132 - Electrical circuits for triggering safety arrangements in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to vehicle motion parameters

12.

Assembly to control or govern relative speed of movement between parts

      
Application Number 15104949
Grant Number 10300397
Status In Force
Filing Date 2014-12-16
First Publication Date 2016-11-03
Grant Date 2019-05-28
Owner Eddy Current Limited Partnership (New Zealand)
Inventor
  • Diehl, Andrew Karl
  • Wright, Kevin A.

Abstract

Described herein is an assembly and methods of use thereof for controlling or governing the relative speed of motion between the assembly parts via eddy current formation. The assembly and methods also may minimize the number of parts required and may minimize the number of moving parts thereby increasing the mechanical durability of the assembly compared to art designs that may have more moving parts and greater part complexity.

IPC Classes  ?

  • A62B 1/06 - Devices for lowering persons from buildings or the like by making use of rope-lowering devices
  • A63G 21/20 - Slideways with movably suspended cars, or with cars moving on ropes, or the like
  • A62B 35/00 - Safety belts or body harnessesSimilar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
  • H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type

13.

LATCH ACTIVATION BETWEEN ELEMENTS

      
Document Number 03162149
Status In Force
Filing Date 2015-12-04
Open to Public Date 2016-06-09
Grant Date 2024-02-27
Owner
  • EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
  • EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
Inventor
  • Allington, Christopher James
  • Diehl, Andrew Karl
  • Wright, Kevin A.
  • Hill, Weston
  • Walters, Dave

Abstract

An eddy current brake configuration comprises a cylinder and a tube. The tube is configured to move rotationally relative to the cylinder and axially as a stroke into the cylinder. The tube and cylinder comprise at least one magnet and at least one conductor that interact when the tube enters the cylinder at different rates of relative rotational movement to impose an eddy current braking force against relative movement between the tube and cylinder. The eddy current brake configuration is further configured to have a bi-stable attractive force arrangement wherein tube stroke movement comprises a first magnetic attraction force and a second magnetic attraction force. The first magnetic attraction force between the tube and an external element acts to delay relative motion of the tube relative to the cylinder. When the first magnetic attraction force is overcome, the tube is free to travel axially into the cylinder. The second magnetic attraction force between the tube and a cylinder end acts to latch the tube in the cylinder.

IPC Classes  ?

  • A62B 1/08 - Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brake mechanisms for the winches or pulleys
  • B66D 5/18 - Crane, lift, hoist, or winch brakes operating on drums, barrels, or ropes for generating braking forces which are proportional to the loads suspendedLoad-actuated brakes
  • F16D 59/00 - Self-acting brakes, e.g. coming into operation at a predetermined speed
  • H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type

14.

EDDY CURRENT BRAKE CONFIGURATIONS

      
Document Number 02969435
Status In Force
Filing Date 2015-12-04
Open to Public Date 2016-06-09
Grant Date 2025-09-16
Owner
  • EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
  • EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
Inventor
  • Allington, Christopher James
  • Diehl, Andrew Karl
  • Wright, Kevin A.
  • Hill, Weston
  • Walters, Dave

Abstract

The eddy current brake configured to have at least two rotational degrees of freedom, where a first primary axis of rotation is angularly translated relative to at least one secondary or control axis of rotation and the braking action is applied to the primary axis and the at least one secondary axis is used to modulate of the braking action. The braking system has a second axis of rotation in a different plane to that of the first axis of rotation and the second axis of rotation may be at an angle generally orthogonal to the first degree of freedom axis of rotation. An orthogonal second axis of rotation may assist with system stability and avoid oscillating forces in an auto-belay or self-retracting lifeline (SRL).

IPC Classes  ?

  • B60L 7/28 - Eddy-current braking
  • H02K 7/10 - Structural association with clutches, brakes, gears, pulleys or mechanical starters
  • H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type

15.

EDDY CURRENT BRAKE CONFIGURATIONS

      
Application Number NZ2015050208
Publication Number 2016/089228
Status In Force
Filing Date 2015-12-04
Publication Date 2016-06-09
Owner EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
Inventor
  • Allington, Christopher James
  • Diehl, Andrew Karl
  • Wright, Kevin A.
  • Hill, Weston
  • Walters, Dave

Abstract

The eddy current brake configured to have at least two rotational degrees of freedom, where a first primary axis of rotation is angularly translated relative to at least one secondary or control axis of rotation and the braking action is applied to the primary axis and the at least one secondary axis is used to modulate of the braking action. The braking system has a second axis of rotation in a different plane to that of the first axis of rotation and the second axis of rotation may be at an angle generally orthogonal to the first degree of freedom axis of rotation. An orthogonal second axis of rotation may assist with system stability and avoid oscillating forces in an auto-belay or self-retracting lifeline (SRL).

IPC Classes  ?

  • H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
  • B60L 7/28 - Eddy-current braking
  • H02K 7/10 - Structural association with clutches, brakes, gears, pulleys or mechanical starters

16.

LATCH ACTIVATION BETWEEN ELEMENTS

      
Document Number 02969407
Status In Force
Filing Date 2015-12-04
Open to Public Date 2016-06-09
Grant Date 2022-10-11
Owner
  • EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
  • EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
Inventor
  • Allington, Christopher James
  • Diehl, Andrew Karl
  • Wright, Kevin A.
  • Hill, Weston
  • Walters, Dave

Abstract

Described herein is a system, method of use and Self Retracting Lifeline (SRL) apparatus using the system that govern a dynamic response between members causing a halt in relative motion between the members. Magnetic interactions, eddy current drag forces and centrifugal and/or inertial forces may provide various mechanisms of governing movement..

IPC Classes  ?

  • A62B 1/08 - Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brake mechanisms for the winches or pulleys
  • B66D 5/18 - Crane, lift, hoist, or winch brakes operating on drums, barrels, or ropes for generating braking forces which are proportional to the loads suspendedLoad-actuated brakes
  • F16D 59/00 - Self-acting brakes, e.g. coming into operation at a predetermined speed
  • H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type

17.

ENERGY ABSORBING APPARATUS

      
Document Number 02969423
Status In Force
Filing Date 2015-12-04
Open to Public Date 2016-06-09
Grant Date 2024-01-02
Owner
  • EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
  • EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
Inventor
  • Diehl, Andrew Karl
  • Walters, Dave

Abstract

Described herein are energy absorbing apparatus and methods of use that utilise varying energy absorbing relationships between the apparatus members to absorb an energy input. The energy absorbing process occurs via a material forming process.

IPC Classes  ?

  • A62B 1/10 - Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brake mechanisms for the winches or pulleys mechanically operated
  • A62B 35/04 - Safety belts or body harnessesSimilar equipment for limiting displacement of the human body, especially in case of sudden changes of motion incorporating energy absorbing means
  • B66D 5/18 - Crane, lift, hoist, or winch brakes operating on drums, barrels, or ropes for generating braking forces which are proportional to the loads suspendedLoad-actuated brakes

18.

TRANSMISSIONS INCORPORATING EDDY CURRENT BRAKING

      
Document Number 02969488
Status In Force
Filing Date 2015-12-04
Open to Public Date 2016-06-09
Grant Date 2022-10-04
Owner
  • EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
  • EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
Inventor
  • Diehl, Andrew Karl
  • Hill, Weston
  • Walters, Dave

Abstract

A transmission mechanism comprising at least one driving member; and at least one driven member, movement of the at least one driven member urged via transmission of movement from the at least one driving member; drag force inducing elements that move at different relative rates comprising at least one electrical conductor and at least one magnet, each element coupled with the transmission mechanism in a manner that allows the elements to interact on movement and generate eddy current drag forces, the elements thereby acting to govern the rate of movement between the driving and driven members. The conductor can be axially driven forward or backward to apply or withdraw the eddy current braking effect.

IPC Classes  ?

  • H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type

19.

LATCH ACTIVATION BETWEEN ELEMENTS

      
Application Number NZ2015050205
Publication Number 2016/089225
Status In Force
Filing Date 2015-12-04
Publication Date 2016-06-09
Owner EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
Inventor
  • Allington, Christopher James
  • Diehl, Andrew Karl
  • Wright, Kevin A.
  • Hill, Weston
  • Walters, Dave

Abstract

Described herein is a system, method of use and Self Retracting Lifeline (SRL) apparatus using the system that govern a dynamic response between members causing a halt in relative motion between the members. Magnetic interactions, eddy current drag forces and centrifugal and/or inertial forces may provide various mechanisms of governing movement..

IPC Classes  ?

  • A62B 1/08 - Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brake mechanisms for the winches or pulleys
  • H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
  • B66D 5/18 - Crane, lift, hoist, or winch brakes operating on drums, barrels, or ropes for generating braking forces which are proportional to the loads suspendedLoad-actuated brakes
  • F16D 59/00 - Self-acting brakes, e.g. coming into operation at a predetermined speed

20.

METHODS OF ALTERING EDDY CURRENT INTERACTIONS

      
Application Number NZ2015050206
Publication Number 2016/089226
Status In Force
Filing Date 2015-12-04
Publication Date 2016-06-09
Owner EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
Inventor
  • Diehl, Andrew Karl
  • Wright, Kevin A.
  • Hill, Weston
  • Walters, Dave

Abstract

Described herein are braking mechanisms and related methods of use using eddy current interactions to resist relative movement between members, the magnetic flux about an eddy current region being modified beyond an inherent drag effect resulting from a simple magnetic pole arrangement.

IPC Classes  ?

  • A62B 1/08 - Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brake mechanisms for the winches or pulleys
  • H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
  • B66D 5/18 - Crane, lift, hoist, or winch brakes operating on drums, barrels, or ropes for generating braking forces which are proportional to the loads suspendedLoad-actuated brakes
  • F16D 59/00 - Self-acting brakes, e.g. coming into operation at a predetermined speed

21.

TRANSMISSIONS INCORPORATING EDDY CURRENT BRAKING

      
Application Number NZ2015050207
Publication Number 2016/089227
Status In Force
Filing Date 2015-12-04
Publication Date 2016-06-09
Owner EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
Inventor
  • Diehl, Andrew Karl
  • Hill, Weston
  • Walters, Dave

Abstract

A transmission mechanism comprising at least one driving member; and at least one driven member, movement of the at least one driven member urged via transmission of movement from the at least one driving member; drag force inducing elements that move at different relative rates comprising at least one electrical conductor and at least one magnet, each element coupled with the transmission mechanism in a manner that allows the elements to interact on movement and generate eddy current drag forces, the elements thereby acting to govern the rate of movement between the driving and driven members. The conductor can be axially driven forward or backward to apply or withdraw the eddy current braking effect.

IPC Classes  ?

  • H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type

22.

ENERGY ABSORBING APPARATUS

      
Application Number NZ2015050209
Publication Number 2016/089229
Status In Force
Filing Date 2015-12-04
Publication Date 2016-06-09
Owner EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
Inventor
  • Diehl, Andrew Karl
  • Walters, Dave

Abstract

Described herein are energy absorbing apparatus and methods of use that utilise varying energy absorbing relationships between the apparatus members to absorb an energy input. The energy absorbing process occurs via a material forming process.

IPC Classes  ?

  • A62B 1/10 - Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brake mechanisms for the winches or pulleys mechanically operated
  • A62B 35/04 - Safety belts or body harnessesSimilar equipment for limiting displacement of the human body, especially in case of sudden changes of motion incorporating energy absorbing means
  • B66D 5/18 - Crane, lift, hoist, or winch brakes operating on drums, barrels, or ropes for generating braking forces which are proportional to the loads suspendedLoad-actuated brakes

23.

TUNING OF A KINEMATIC RELATIONSHIP BETWEEN MEMBERS

      
Document Number 02957635
Status Pending
Filing Date 2015-08-18
Open to Public Date 2016-02-25
Owner
  • EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
  • EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
  • EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
Inventor
  • Diehl, Andrew Karl
  • Allington, Christopher James

Abstract

Described herein is a device comprising members in a kinematic relationship. The kinematic relationship is at least partially governed by at least one magnetically induced force that introduces a force threshold that, in effect, provides a threshold to part movement and confers a degree of hysteresis, preventing movement until a sufficiently large energising force is applied. The effect may be further altered by use of an additional magnetically induced force interaction with at least one further member to urge or slow movement once started and/or to prevent movement once a new position is reached.

IPC Classes  ?

  • B60L 7/28 - Eddy-current braking
  • H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type

24.

LATCHING DEVICES

      
Document Number 02957654
Status In Force
Filing Date 2015-08-18
Open to Public Date 2016-02-25
Grant Date 2023-09-26
Owner
  • EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
  • EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
  • EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
Inventor
  • Diehl, Andrew Karl
  • Allington, Christopher James
  • Wright, Kevin Andrew

Abstract

Described herein are latching devices where relative speed of movement between members is in part controlled or reduced via eddy current formation and in part controlled or relative motion stopped via a latch arrangement. Various embodiments are described, one being use of a conductive member; at least one magnetic field and a latch member that, prior to latching, moves independently to the at least one conductive member. A kinematic relationship exists between the conductive member and at least one magnetic field that enables the conductive member to move at a different speed relative to the magnetic field on application of an energising force, thereby inducing an eddy current drag force by relative movement of the conductive member in the magnetic field. The eddy current drag force resulting causes movement of the conductive member causing the conductive member to engage the latch member thereby halting movement between the at least one conductive member and the at least one latch member.

IPC Classes  ?

  • B60L 7/28 - Eddy-current braking
  • H02K 7/10 - Structural association with clutches, brakes, gears, pulleys or mechanical starters
  • H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type

25.

TUNING OF A KINEMATIC RELATIONSHIP BETWEEN MEMBERS

      
Application Number NZ2015050113
Publication Number 2016/028168
Status In Force
Filing Date 2015-08-18
Publication Date 2016-02-25
Owner EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
Inventor
  • Diehl, Andrew Karl
  • Allington, Christopher James

Abstract

Described herein is a device comprising members in a kinematic relationship. The kinematic relationship is at least partially governed by at least one magnetically induced force that introduces a force threshold that, in effect, provides a threshold to part movement and confers a degree of hysteresis, preventing movement until a sufficiently large energising force is applied. The effect may be further altered by use of an additional magnetically induced force interaction with at least one further member to urge or slow movement once started and/or to prevent movement once a new position is reached.

IPC Classes  ?

  • H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
  • B60L 7/28 - Eddy-current braking

26.

TUNING OF A KINEMATIC RELATIONSHIP BETWEEN MEMBERS

      
Application Number NZ2015050114
Publication Number 2016/028169
Status In Force
Filing Date 2015-08-18
Publication Date 2016-02-25
Owner EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
Inventor
  • Diehl, Andrew Karl
  • Allington, Christopher James

Abstract

In one embodiment, the device comprises a first member in a kinematic relationship with at least one further member to form a system. The system interacts when an external energising force is imposed on the system causing the members to respond due to their kinematic and dynamic characteristics and thereby creating relative motion between the members. A trigger member is coupled to the at least the first member and moves in response to a pre-determined system movement. When the trigger member moves, the trigger member imposes a braking action on the system or members thereof. The speed or intensity of the braking action imposed by the trigger member on the system or members thereof is controlled by the trigger member rate of movement. This rate of movement is in turn governed by a magnetic flux interaction between the trigger member and the at least one first member causing formation of a magnetically induced eddy current force between the parts.

IPC Classes  ?

  • H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
  • B60L 7/28 - Eddy-current braking

27.

TUNING OF A KINEMATIC RELATIONSHIP BETWEEN MEMBERS

      
Document Number 02957642
Status In Force
Filing Date 2015-08-18
Open to Public Date 2016-02-25
Grant Date 2023-10-03
Owner
  • EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
  • EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
  • EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
Inventor
  • Diehl, Andrew Karl
  • Allington, Christopher James

Abstract

In one embodiment, the device comprises a first member in a kinematic relationship with at least one further member to form a system. The system interacts when an external energising force is imposed on the system causing the members to respond due to their kinematic and dynamic characteristics and thereby creating relative motion between the members. A trigger member is coupled to the at least the first member and moves in response to a pre-determined system movement. When the trigger member moves, the trigger member imposes a braking action on the system or members thereof. The speed or intensity of the braking action imposed by the trigger member on the system or members thereof is controlled by the trigger member rate of movement. This rate of movement is in turn governed by a magnetic flux interaction between the trigger member and the at least one first member causing formation of a magnetically induced eddy current force between the parts.

IPC Classes  ?

  • B60L 7/28 - Eddy-current braking
  • H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type

28.

LATCHING DEVICES

      
Application Number NZ2015050115
Publication Number 2016/028170
Status In Force
Filing Date 2015-08-18
Publication Date 2016-02-25
Owner EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
Inventor
  • Diehl, Andrew Karl
  • Allington, Christopher James
  • Wright, Kevin Andrew

Abstract

Described herein are latching devices where relative speed of movement between members is in part controlled or reduced via eddy current formation and in part controlled or relative motion stopped via a latch arrangement. Various embodiments are described, one being use of a conductive member; at least one magnetic field and a latch member that, prior to latching, moves independently to the at least one conductive member. A kinematic relationship exists between the conductive member and at least one magnetic field that enables the conductive member to move at a different speed relative to the magnetic field on application of an energising force, thereby inducing an eddy current drag force by relative movement of the conductive member in the magnetic field. The eddy current drag force resulting causes movement of the conductive member causing the conductive member to engage the latch member thereby halting movement between the at least one conductive member and the at least one latch member.

IPC Classes  ?

  • H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
  • B60L 7/28 - Eddy-current braking
  • H02K 7/10 - Structural association with clutches, brakes, gears, pulleys or mechanical starters

29.

Line dispensing device with eddy current braking for use with climbing and evacuation

      
Application Number 14637153
Grant Number 09962588
Status In Force
Filing Date 2015-03-03
First Publication Date 2015-07-16
Grant Date 2018-05-08
Owner EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
Inventor
  • Allington, Christopher James
  • Diehl, Andrew Karl
  • Robertson, Bruce John

Abstract

This disclosure describes embodiments of novel line dispensing devices and methods for dispensing and retracting a line of a line dispensing device.

IPC Classes  ?

  • A62B 1/06 - Devices for lowering persons from buildings or the like by making use of rope-lowering devices
  • A63B 69/00 - Training appliances or apparatus for special sports
  • A62B 1/08 - Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brake mechanisms for the winches or pulleys
  • H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
  • H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
  • H02K 16/00 - Machines with more than one rotor or stator

30.

AN ASSEMBLY TO CONTROL OR GOVERN RELATIVE SPEED OF MOVEMENT BETWEEN PARTS

      
Document Number 02933045
Status In Force
Filing Date 2014-12-16
Open to Public Date 2015-06-25
Grant Date 2023-10-03
Owner
  • EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
  • EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
  • EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
Inventor
  • Diehl, Andrew Karl
  • Wright, Kevin A.

Abstract

Described herein is an assembly and methods of use thereof for controlling or governing the relative speed of motion between the assembly parts via eddy current formation. The assembly and methods also may minimise the number of parts required and may minimise the number of moving parts thereby increasing the mechanical durability of the assembly compared to art designs that may have more moving parts and greater part complexity.

IPC Classes  ?

  • H02K 49/02 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type
  • H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type

31.

AN ASSEMBLY TO CONTROL OR GOVERN RELATIVE SPEED OF MOVEMENT BETWEEN PARTS

      
Application Number NZ2014000245
Publication Number 2015/093983
Status In Force
Filing Date 2014-12-16
Publication Date 2015-06-25
Owner EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
Inventor
  • Diehl, Andrew Karl
  • Wright, Kevin A.

Abstract

Described herein is an assembly and methods of use thereof for controlling or governing the relative speed of motion between the assembly parts via eddy current formation. The assembly and methods also may minimise the number of parts required and may minimise the number of moving parts thereby increasing the mechanical durability of the assembly compared to art designs that may have more moving parts and greater part complexity.

IPC Classes  ?

  • H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
  • H02K 49/02 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type

32.

Braking mechanisms

      
Application Number 14464255
Grant Number 10518115
Status In Force
Filing Date 2014-08-20
First Publication Date 2014-12-25
Grant Date 2019-12-31
Owner Eddy Current Limited Partnership (New Zealand)
Inventor
  • Allington, Christopher James
  • Diehl, Andrew Karl
  • Robertson, Bruce John

Abstract

An eddy-current braking mechanism including a rotor, rotatable about a rotor axis; at least one electrically conductive member coupled to the rotor for rotation therewith; at least one magnet configured to apply a magnetic field extending at least partially orthogonal to the plane of rotation of the conductive member, and characterised in that upon rotation of the rotor, the conductive member is configured to move at least partially radially from the rotor axis into the applied magnetic field.

IPC Classes  ?

  • A62B 1/08 - Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brake mechanisms for the winches or pulleys
  • A62B 1/10 - Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brake mechanisms for the winches or pulleys mechanically operated
  • H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
  • H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
  • A63B 69/00 - Training appliances or apparatus for special sports
  • H02K 16/00 - Machines with more than one rotor or stator
  • H02K 7/12 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with auxiliary limited movement of stators, rotors or core parts, e.g. rotors axially movable for the purpose of clutching or braking

33.

Line dispensing device with eddy current braking for use with climbing and evacuation

      
Application Number 13924004
Grant Number 09016435
Status In Force
Filing Date 2013-06-21
First Publication Date 2014-02-20
Grant Date 2015-04-28
Owner Eddy Current Limited Partnership (New Zealand)
Inventor
  • Allington, Christopher James
  • Diehl, Andrew Karl
  • Robertson, Bruce John

Abstract

This disclosure describes embodiments of novel line dispensing devices and methods for dispensing and retracting a line of a line dispensing device.

IPC Classes  ?

  • A62B 1/08 - Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brake mechanisms for the winches or pulleys
  • H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
  • H02K 16/00 - Machines with more than one rotor or stator

34.

Braking mechanisms

      
Application Number 13255625
Grant Number 08851235
Status In Force
Filing Date 2010-01-29
First Publication Date 2012-03-08
Grant Date 2014-10-07
Owner Eddy Current Limited Partnership (New Zealand)
Inventor
  • Allington, Christopher James
  • Diehl, Andrew Karl
  • Robertson, Bruce John

Abstract

An eddy-current braking mechanism including a rotor, rotatable about a rotor axis; at least one electrically conductive member coupled to the rotor for rotation therewith; at least one magnet configured to apply a magnetic field extending at least partially orthogonal to the plane of rotation of the conductive member, and characterized in that upon rotation of the rotor, the conductive member is configured to move at least partially radially from the rotor axis into the applied magnetic field.

IPC Classes  ?

  • A62B 1/08 - Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brake mechanisms for the winches or pulleys
  • H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
  • H02K 16/00 - Machines with more than one rotor or stator

35.

Line dispensing device with eddy current braking for use with climbing and evacuation

      
Application Number 12858839
Grant Number 08490751
Status In Force
Filing Date 2010-08-18
First Publication Date 2010-12-09
Grant Date 2013-07-23
Owner
  • EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
  • EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
Inventor
  • Allington, Christopher James
  • Diehl, Andrew Karl
  • Robertson, Bruce John

Abstract

This disclosure describes embodiments of novel line dispensing devices and methods for dispensing and retracting a line of a line dispensing device.

IPC Classes  ?

  • A62B 1/06 - Devices for lowering persons from buildings or the like by making use of rope-lowering devices

36.

BRAKING MECHANISMS

      
Document Number 03105810
Status In Force
Filing Date 2010-01-29
Open to Public Date 2010-09-16
Grant Date 2022-08-02
Owner
  • EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
  • EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
  • EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
Inventor
  • Allington, Christopher James
  • Diehl, Andrew Karl
  • Robertson, Bruce John

Abstract

An eddy-current braking mechanism including a rotor, rotatable about a rotor axis; at least one electrically conductive member coupled to the rotor for rotation therewith; at least one magnet configured to apply a magnetic field extending at least partially orthogonal to the plane of rotation of the conductive member, and characterised in that upon rotation of the rotor, the conductive member is configured to move at least partially radially from the rotor axis into the applied magnetic field.

IPC Classes  ?

  • H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type

37.

BRAKING MECHANISMS

      
Document Number 03007550
Status In Force
Filing Date 2010-01-29
Open to Public Date 2010-09-16
Grant Date 2021-03-02
Owner
  • EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
  • EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
  • EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
Inventor
  • Allington, Christopher James
  • Diehl, Andrew Karl
  • Robertson, Bruce John

Abstract

An eddy-current braking mechanism including a rotor, rotatable about a rotor axis; at least one electrically conductive member coupled to the rotor for rotation therewith; at least one magnet configured to apply a magnetic field extending at least partially orthogonal to the plane of rotation of the conductive member, and characterised in that upon rotation of the rotor, the conductive member is configured to move at least partially radially from the rotor axis into the applied magnetic field.

IPC Classes  ?

  • H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type

38.

IMPROVEMENTS IN AND RELATING TO BRAKING MECHANISMS

      
Document Number 02789535
Status In Force
Filing Date 2010-01-29
Open to Public Date 2010-09-16
Grant Date 2018-07-24
Owner
  • EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
  • EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
  • EDDY CURRENT LIMITED PARTNERSHIP (New Zealand)
Inventor
  • Allington, Christopher James
  • Diehl, Andrew Karl
  • Robertson, Bruce John

Abstract

An eddy-current braking mechanism including a rotor, rotatable about a rotor axis; at least one electrically conductive member coupled to the rotor for rotation therewith; at least one magnet configured to apply a magnetic field extending at least partially orthogonal to the plane of rotation of the conductive member, and characterised in that upon rotation of the rotor, the conductive member is configured to move at least partially radially from the rotor axis into the applied magnetic field.

IPC Classes  ?

  • A63B 69/00 - Training appliances or apparatus for special sports
  • H02K 49/04 - Dynamo-electric clutchesDynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type