The clamp assembly includes a mount ring with a first portion including a first passage extending along a first longitudinal axis, a second portion including extending along a second longitudinal axis spaced transversely apart from the first longitudinal passage, and third portion including a third passage extending along a transverse axis between the first and second longitudinal axes, and a clamp movably carried in the third passage of the third portion of the mount ring, and a cam engageable with the clamp to move the clamp toward the first portion of the mount ring. Also disclosed are related clamps and mounting rings.
An industrial gas spring with a hydraulic accumulator includes a piston rod of the received in a hydraulic chamber connected to a gas over hydraulic fluid accumulator chamber in which a compressed gas determines the force required to yieldably move the piston rod from its extended position to its retracted position. On a return stroke of the piston rod as it approaches its fully extended position, a hydraulic damper chamber in the hydraulic cylinder may reduce the velocity of the returning piston rod. The damper chamber may return a hydraulic fluid through an orifice to the hydraulic cylinder chamber. The orifice may provide a varying restriction to vary and control the velocity or rate at which the piston rod returns to its fully extended position.
F16F 9/06 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
F15B 1/24 - Accumulators using a gas cushionGas charging devicesIndicators or floats therefor with rigid separating means, e.g. pistons
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
F16F 9/34 - Special valve constructionsShape or construction of throttling passages
F16F 9/516 - Special means providing automatic damping adjustment resulting in the damping effects during contraction being different from the damping effects during extension
40 - Treatment of materials; recycling, air and water treatment,
37 - Construction and mining; installation and repair services
39 - Transport, packaging, storage and travel services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Custom manufacturing of packing, shipping, and transport containers for others Repair and cleaning of pallets and transport containers Rental of shipping containers Custom design and engineering of packing, shipping, and transport containers; Custom design of prototypes in the field of packing, shipping, and transport containers
40 - Treatment of materials; recycling, air and water treatment,
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Custom manufacturing of packing, shipping, and transport containers for others Repair and cleaning of pallets and transport containers Custom design and engineering of packing, shipping, and transport containers; Custom design of prototypes in the field of packing, shipping, and transport containers
An industrial gas spring with a hydraulic accumulator includes a piston rod of the received in a hydraulic chamber connected to a gas over hydraulic fluid accumulator chamber in which a compressed gas determines the force required to yieldably move the piston rod from its extended position to its retracted position. On a return stroke of the piston rod as it approaches its fully extended position, a hydraulic damper chamber in the hydraulic cylinder may reduce the velocity of the returning piston rod. The damper chamber may return a hydraulic fluid through an orifice to the hydraulic cylinder chamber. The orifice may provide a varying restriction to vary and control the velocity or rate at which the piston rod returns to its fully extended position.
F16F 9/512 - Means responsive to load action on the damper or fluid pressure in the damper
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
E21B 31/113 - Fishing for or freeing objects in boreholes or wells using impact means for releasing stuck parts, e.g. jars hydraulically operated
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
An industrial gas spring with a pressure chamber in a casing with an end wall, a piston rod received at least in part in the casing for reciprocation between extended and retracted positions and a pressure relief assembly carried by the end wall. The pressure relief assembly may have a membrane communicating with the pressure chamber and a plunger configured to breach the membrane when engaged and moved by the piston rod when it overtravels its design intended retracted position.
F16F 9/43 - Filling arrangements, e.g. for supply of gas
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
F16K 17/40 - Safety valvesEqualising valves with fracturing member, e.g. fracturing diaphragm, fusible joint
An industrial gas spring with a pressure chamber in a casing with an end wall, a piston rod received at least in part in the casing for reciprocation between extended and retracted positions and a pressure relief assembly carried by the end wall. The pressure relief assembly may have a membrane communicating with the pressure chamber and a plunger configured to breach the membrane when engaged and moved by the piston rod when it overtravels its design intended retracted position.
F16F 9/43 - Filling arrangements, e.g. for supply of gas
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
F16K 17/40 - Safety valvesEqualising valves with fracturing member, e.g. fracturing diaphragm, fusible joint
An industrial gas spring with a pressure chamber in a casing with an end wall, a piston rod received at least in part in the casing for reciprocation between extended and retracted positions and a pressure relief assembly carried by the end wall. The pressure relief assembly may have a membrane communicating with the pressure chamber and a plunger configured to breach the membrane when engaged and moved by the piston rod when it overtravels its design intended retracted position.
F16F 9/43 - Filling arrangements, e.g. for supply of gas
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
F16K 17/40 - Safety valvesEqualising valves with fracturing member, e.g. fracturing diaphragm, fusible joint
40 - Treatment of materials; recycling, air and water treatment,
20 - Furniture and decorative products
42 - Scientific, technological and industrial services, research and design
Goods & Services
Custom manufacturing of packing containers for others Packing containers of plastic material Custom design and engineering of packing containers; Custom design of prototypes in the field of packing containers
A pneumatic cylinder with a piston rod movable to fully extended, intermediate and fully retracted positions. The cylinder may have a first head engaging one end of a first tube with a first piston slidably received therein, an intermediate connector engaging the other end of the first tube and one end of a second tube with a second piston slidably received therein, and a second head engaging the other end of the second tube. The piston rod may be attached to the second piston for movement therewith and extend through the intermediate connector, first piston, first tube, and the first head to the exterior thereof.
F15B 15/14 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
F15B 15/22 - Other details for accelerating or decelerating the stroke
A pneumatic cylinder with a piston rod movable to fully extended, intermediate and fully retracted positions. The cylinder may have a first head engaging one end of a first tube with a first piston slidably received therein, an intermediate connector engaging the other end of the first tube and one end of a second tube with a second piston slidably received therein, and a second head engaging the other end of the second tube. The piston rod may be attached to the second piston for movement therewith and extend through the intermediate connector, first piston, first tube, and the first head to the exterior thereof.
F15B 15/14 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
F15B 15/22 - Other details for accelerating or decelerating the stroke
A pneumatic cylinder with a piston rod movable to fully extended, intermediate and fully retracted positions. The cylinder may have a first head engaging one end of a first tube with a first piston slidably received therein, an intermediate connector engaging the other end of the first tube and one end of a second tube with a second piston slidably received therein, and a second head engaging the other end of the second tube. The piston rod may be attached to the second piston for movement therewith and extend through the intermediate connector, first piston, first tube, and the first head to the exterior thereof.
F15B 11/12 - Servomotor systems without provision for follow-up action with only one servomotor providing distinct intermediate positionsServomotor systems without provision for follow-up action with only one servomotor with step-by-step action
F16J 10/02 - Cylinders designed to receive moving pistons or plungers
F15B 15/22 - Other details for accelerating or decelerating the stroke
F15B 15/14 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
A gas pressure relief valve assembly with a normally closed check valve received in a main body. An actuator pin slidably received in a guide body threadably carried by the main body may be advanced to open the check valve and retracted to permit the check valve to close. A knob connected to the actuator pin and threadably carried by the guide body may be manually rotated in opposite directions to advance and retract the actuator pin. Rotary loosening of the threaded knob and/or loosening of the threaded guide body will retract the actuator pin and prevent opening of the check valve.
An industrial gas spring with a pressure chamber in a casing with an end wall, a piston rod received at least in part in the casing for reciprocation between extended and retracted positions and a pressure relief assembly carried by the end wall. The pressure relief assembly may have a membrane communicating with the pressure chamber and a plunger configured to breach the membrane when engaged and moved by the piston rod when it overtravels its design intended retracted position.
F16F 9/43 - Filling arrangements, e.g. for supply of gas
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
F16K 17/40 - Safety valvesEqualising valves with fracturing member, e.g. fracturing diaphragm, fusible joint
An industrial gas spring with a pressure chamber in a casing with an end wall, a piston rod received at least in part in the casing for reciprocation between extended and retracted positions and a pressure relief assembly carried by the end wall. The pressure relief assembly may have a membrane communicating with the pressure chamber and a plunger configured to breach the membrane when engaged and moved by the piston rod when it overtravels its design intended retracted position.
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
A process and machine for filling a container with a top opening with swarf. The machine may include an apparatus to deposit a pile of swarf in the container with a portion of the pile extending above the top opening, a blade extending laterally across this portion and an actuator configured to move the blade across at least part of the pile to move at least part of the top portion of the pile into the container and desirably below the top opening.
B23Q 11/00 - Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling workSafety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
A gas pressure relief valve assembly with a normally closed check valve received in a main body. An actuator pin slidably received in a guide body threadably carried by the main body may be advanced to open the check valve and retracted to permit the check valve to close. A knob connected to the actuator pin and threadably carried by the guide body may be manually rotated in opposite directions to advance and retract the actuator pin. Rotary loosening of the threaded knob and/or loosening of the threaded guide body will retract the actuator pin and prevent opening of the check valve.
A gas spring for forming equipment may have a casing with an axially extending side wall, an open end, and a closed end wall with the walls defining in part a pressure chamber to receive a gas under pressure, a bearing assembly received in the casing, a piston rod slidably received in the bearing assembly for reciprocation between extended and retracted positions, a piston retainer received in the casing and separate from and normally carried by the piston rod, a deforming member in the casing adjacent its closed end wall, and configured to plastically deform the retainer when the piston rod is forced into the pressure chamber into an overtravel retracted position beyond its designed intended maximum retracted position and after such overtravel the piston rod returns to at least its extended position and the deformed retainer engages the bearing assembly and is fractured and separated from the piston rod.
F16F 7/12 - Vibration-dampersShock-absorbers using plastic deformation of members
F16F 9/00 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
F16F 9/04 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only in a chamber with a flexible wall
F16F 9/06 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
F16F 9/10 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid onlySprings, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using a fluid of which the nature is immaterial
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
A gas spring for forming equipment may have a casing with an axially extending side wall, an open end, and a closed end wall with the walls defining in part a pressure chamber to receive a gas under pressure, a bearing assembly received in the casing, a piston rod slidably received in the bearing assembly for reciprocation between extended and retracted positions, a piston retainer received in the casing and separate from and normally carried by the piston rod, a deforming member in the casing adjacent its closed end wall, and configured to plastically deform the retainer when the piston rod is forced into the pressure chamber into an overtravel retracted position beyond its designed intended maximum retracted position and after such overtravel the piston rod returns to at least its extended position and the deformed retainer engages the bearing assembly and is fractured and separated from the piston rod. The gas spring may have a piston rod seal and a passage in the piston rod communicating with the pressure chamber and opening onto the piston rod at a location that do both axially inboard of engagement of the seal with the piston rod when it is in its normal extended position and generally axially outboard of and bypassing or disrupting the seal after overtravel of the piston rod and the retainer has separated from it and it has moved to a further extended position relative to its designed intended normal maximum extended position to thereby provide a path for compressed gas in the pressure chamber to pass through the passage to the exterior of the open end of the casing.
F16F 9/34 - Special valve constructionsShape or construction of throttling passages
F16F 9/43 - Filling arrangements, e.g. for supply of gas
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
A gas spring with a casing with an axially extending side wall, an open end and a closed end wall spaced from the open end and a pressure chamber provided in part by the walls to receive a gas therein under pressure and a piston rod slidably received in a housing received in the casing and movable between extended and retracted positions. A pressure relief collar slidably carried around the piston rod and normally projecting axially outwardly of the casing can be displaced axially inwardly during an overtravel condition of the piston rod to displace a portion of a piston rod seal to open an overpressure relief path to allow pressurized gas in the pressure chamber to escape to the outside of the gas spring.
F16F 9/43 - Filling arrangements, e.g. for supply of gas
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
A gas spring with a casing with an axially extending side wall, an open end and a closed end wall spaced from the open end and a pressure chamber provided in part by the walls to receive a gas therein under pressure and a piston rod slidably received in a housing received in the casing and movable between extended and retracted positions. A pressure relief collar slidably carried around the piston rod and normally projecting axially outwardly of the casing can be displaced axially inwardly during an overtravel condition of the piston rod to displace a portion of a piston rod seal to open an overpressure relief path to allow pressurized gas in the pressure chamber to escape to the outside of the gas spring.
F16F 9/43 - Filling arrangements, e.g. for supply of gas
F16F 9/00 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
A gas spring for forming equipment. A casing includes an axially extending side wall, an open end, a transversely extending closed end wall axially spaced from the open end, and a pressure chamber established in part by the side and end walls to receive a gas under pressure. A piston rod is received at least partially in the casing for reciprocation between extended and retracted positions. A piston rod housing is received at least in part in the casing between the piston rod and the casing. An overtravel pressure relief feature includes a vent path that is disposed between the pressure chamber and the outside of the gas spring and that includes a vent passage through the side wall of the casing and a seal that sealingly interrupts the vent path, wherein displacement of the housing into the casing results in opening of the vent path.
F16F 9/43 - Filling arrangements, e.g. for supply of gas
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
A piston rod housing assembly for a gas spring includes a piston rod housing having an interior end, an exterior end axially spaced from the interior end, and an overtravel pressure relief passage extending through the piston rod housing and intersecting the exterior end.
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
F16F 9/43 - Filling arrangements, e.g. for supply of gas
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
A piston rod housing assembly for a gas spring includes a piston rod housing having an interior end, an exterior end axially spaced from the interior end, and an overtravel pressure relief passage extending axially through the piston rod housing and intersecting the exterior end. The assembly also includes an overtravel pressure relief member carried in the overtravel pressure relief passage and having an exterior end that projects axially beyond the piston rod housing.
F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
28.
Toe clamp, and related manufacturing method, clamping arrangement, and fixture
Toe clamps generally shaped like hollow cylinder sectors or ring segments, methods of manufacturing such toe clamps, a toe clamping arrangement including such toe clamps, and a fixture for use in manufacturing such toe clamps.
B21K 5/20 - Making working faces of dies, either recessed or outstanding
B23Q 3/02 - Devices holding, supporting, or positioning, work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
F16B 2/08 - Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action using bands
B25B 5/12 - Arrangements for positively actuating jaws using toggle links
A gas spring for forming equipment, a piston rod for the gas spring, and a shock collar for the gas spring carried by the piston rod. The shock collar may be resiliently flexible, and plastically deformable so as to at least partially collapse, and the piston rod may include features to disrupt a gas spring seal upon at least partial collapse of the shock collar.
F16F 13/00 - Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
F16F 9/58 - Stroke limiting stops, e.g. arranged on the piston rod outside the cylinder
F16F 9/48 - Arrangements for providing different damping effects at different parts of the stroke
A gas spring for forming equipment, including a piston received at least partially in a cylinder for reciprocation between extended and retracted positions, and including a throttling passage disposed between the piston and the cylinder in fluid communication between first and second pressure chambers during at least a portion of the reciprocation of the piston. The throttling passage is of variable cross-sectional area, which varies with a length of the passage to at least partially restrict gas flow therethrough in a manner varying with return of the piston toward its extended position to decelerate the piston at a predetermined rate.
F16F 9/48 - Arrangements for providing different damping effects at different parts of the stroke
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
F16F 9/34 - Special valve constructionsShape or construction of throttling passages
F16F 5/00 - Liquid springs in which the liquid works as a spring by compression, e.g. combined with throttling actionCombinations of devices including liquid springs
F16F 9/36 - Special sealings, including sealings or guides for piston-rods
40 - Treatment of materials; recycling, air and water treatment,
Goods & Services
(1) Machinery and equipment for lifting and handling devices used for catching, holding, depositing, translatory movement and/or transport of components, tool parts for handling devices, namely grippers, linear motion control units and/or turning devices.
(2) Mechanical conveyor systems consisting of rack and pinion for movement of small parts, mechanical conveyor systems consisting of a trolley for movement of small parts; tool parts for mechanical conveyors namely grippers, linear motion control units and/or turning devices. (1) Contract manufacture of standard stamping and punching tools including cutting punches, cutting bushings, dowel pins, dowel pin bushings, ejector pins, ejector sleeves, measuring pins, guide pins, centering discs, mould cores, tool holders, hot runner mould parts, turning parts, milling parts, grinding parts, centering units, guide elements, guide pins, guide bushings, retainer plates (punch), retainer plates (bush), drilling guides, drill bushings, and customized customer requests of these elements.
Hydraulic cylinders, air cylinders, hydraulic pump and actuator systems, delayed return hydraulic cylinder systems, core pin hydraulic cylinders, non-rotating air cylinders, air cylinder mounts, air cylinder couplers, air cylinder rod ends, guide retainers, two-post air cylinder lifters, two-post lifters, rack and pinion lifters, nitrogen gas cylinders, nitrogen gas springs, nitrogen gas spring lifters, tension mounts for nitrogen gas springs, repair parts and replacement parts for all of them, nitrogen gas control panels for nitrogen gas springs, nitrogen gas port adapters, nitrogen gas hose adapters, nitrogen gas manifolds, nitrogen gas distribution blocks, nitrogen gas surge tanks, nitrogen gas spring mounting plates, nitrogen gas pressure booster systems. Nitrogen gas spring servicing tools, ratcheting tools, T-handle hex tools, C-ring removal tools, C-ring installation tools.
A guide and retention assembly for spaced apart confronting plates of a die set for guiding the plates for relative reciprocal movement toward and away from the other. The assembly includes a housing with a mounting flange and a sleeve with a through bore, and a rod extending through the bore and slidably received in at least one bushing in the sleeve.
B21D 37/12 - Particular guiding equipmentSpecial arrangements for interconnection or cooperation of dies
B21B 45/02 - Devices for surface treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
F16M 13/00 - Other supports for positioning apparatus or articlesMeans for steadying hand-held apparatus or articles
A guide and retention assembly for spaced apart confronting plates of a die set for guiding the plates for relative reciprocal movement toward and away from the other. The assembly includes a housing with a mounting flange and a sleeve with a through bore, and a rod extending through the bore and slidably received in at least one bushing in the sleeve.
A delay return gas spring including a piston at least partially received in a cylinder for reciprocation between extended and compressed positions over a cycle including a compression stroke and a return stroke. A seal disposed between the cylinder and the piston separates a primary chamber on one side of the seal from a secondary chamber on another side of the seal during a portion of the cycle. A passage communicates with the secondary chamber and with the primary chamber. The seal is relatively movable between an open position permitting free flow of gas through the passage to a closed position at least partially restricting gas flow through the passage so as to permit gas in the secondary chamber to be compressed in response to movement of the piston toward its extended position, thereby reducing a net return force on the piston and decreasing a velocity of the piston.
An apparatus may have a cylinder including a piston rod and a chamber in which a working fluid is received to resist movement of the piston rod into the chamber, and an accumulator having a first chamber in communication with the cylinder chamber to receive fluid from the cylinder chamber upon movement of the piston rod into the cylinder chamber. The apparatus may also have a pressure controller having a fluid chamber where some of the working fluid may be received and an actuator operable to increase the volume of the fluid chamber when the piston rod is retracted into the cylinder chamber to increase the total volume in which the working fluid may be received, wherein the increased volume of the fluid chamber may accommodate fluid movement in the assembly not caused by movement of the piston rod.
In at least one embodiment, a gas spring includes a casing having an inner surface defining in part a gas chamber, a piston rod and a seal. The piston rod is received at least partially in the casing for reciprocation along an axis between extended and retracted positions. The piston rod has an internal cavity defining a hollow space, a stop and a rod guide disposed adjacent to the inner surface of the casing to guide the reciprocation of the piston rod at least in part. The seal generally is provided between the piston rod and the casing to prevent gas leakage from the gas chamber.
F16F 5/00 - Liquid springs in which the liquid works as a spring by compression, e.g. combined with throttling actionCombinations of devices including liquid springs
In at least one embodiment, a gas spring includes a casing having an inner surface defining in part a gas chamber, a piston rod and a seal. The piston rod is received at least partially in the casing for reciprocation along an axis between extended and retracted positions. The piston rod has an internal cavity defining a hollow space, a stop and a rod guide disposed adjacent to the inner surface of the casing to guide the reciprocation of the piston rod at least in part. The seal generally is provided between the piston rod and the casing to prevent gas leakage from the gas chamber.
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
B30B 15/00 - Details of, or accessories for, pressesAuxiliary measures in connection with pressing
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
F16F 9/36 - Special sealings, including sealings or guides for piston-rods
A hydraulically-operated press-driven tool actuation system includes a press-driven hydraulic power device and/or a hydraulically-powered tool actuator. In the tool actuator, at least two pistons are carried by a housing, and at least one return device is carried by the housing laterally inboard of the pistons. In the power device, a pump includes a piston disposed in a pump cylinder for pressurizing hydraulic fluid therein. An accumulator is in fluid communication with the pump cylinder, and includes a piston disposed in an accumulator cylinder that houses hydraulic fluid on one side of the piston. A body supports the pump and accumulator thereon and is in fluid communication between the pump and accumulator cylinders. The body includes a pressure relief valve downstream of the pump cylinder and upstream of the accumulator cylinder, and a check valve downstream of the accumulator cylinder and upstream of the pump cylinder.
A pressure indicating device includes a case including a gas passage, and a movable indicator carried by the case. The indicator has an end in fluid communication with the gas passage and an indicator end projectable out of a portion of the case when pressure in the gas passage is at least a predetermined minimum pressure. A spring may retract the indicator when pressure in the gas passage is below the predetermined minimum pressure.
G01L 7/16 - Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of pistons
G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
A reaction device for forming equipment includes a housing having a mount adapted to be connected to a forming die and a casing carried by the mount. A lift rod is disposed at least partially on the housing for movement relative to the house between extended and retracted positions. The lift rod has a first end disposed in the housing, a second end and a passage extending through the lift rod between its ends. An adapter is connected to the lift rod within the passage and is adapted to be coupled to a lift bar of the forming equipment. A biasing member is disposed between the lift rod and the housing to yieldably bias the lift rod to its extended position.
A reaction device for forming equipment includes a base, a reaction member movably spaced therefrom by guides, and a return gas spring carried by the base and operatively engaged to the reaction member for yieldably biasing the reaction member away from the base. The base has a return gas spring passage and guide shaft passages spaced apart therefrom. A return gas spring is received in the return gas spring passage of the base, and has a piston rod with an end arranged for contact with the reaction member. The guides include guide shafts arranged for engagement with the reaction member and disposed in guide bushings, which are received in the guide shaft passages of the base and preferably project below the base for use in locating the reaction device on the forming equipment.
B21D 22/21 - Deep-drawing without fixing the border of the blank
B21D 26/00 - Shaping without cutting otherwise than by using rigid devices or tools or yieldable or resilient pads, e.g. shaping by applying fluid pressure or magnetic forces
B21J 11/00 - Forging hammers combined with forging pressesForging machines with provision for hammering and pressing
B30B 1/23 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by screw means operated by fluid-pressure means
