A multistage centrifugal water pump includes a housing having a water inlet for receiving water into the housing and a water outlet for expelling the water from the housing. A first impeller rotates within the housing about an axis of rotation to impel the water centrifugally to define a first stage in which the water is pressurized. A second impeller also rotates within the housing about the axis of rotation to impel the water centrifugally to define a second stage in which the water is further pressurized. A distributor defines an inter-stage wall between the first impeller of the first stage and the second impeller at the second stage, the distributor having first and second cutwaters. The housing has a first slot into which the first cutwater is inserted. The housing has a second slot, opposite from the first slot, into which the second cutwater is inserted.
A protection system for automatically protecting an engine-driven pump system having an engine that drives a pump. The protection system has a pressure-sensing switch that senses a water pressure in the pump and, in response to detecting that the water pressure in the pump is below a predetermined pressure level, shuts off the engine. The protection system includes a relay electrically connected to an alternating current source of the engine, the relay detecting an engine voltage for the alternating current source of the engine. The relay compares the engine voltage to a first and second predetermined voltages. The relay is configured to: if the engine voltage is equal to or higher than the first predetermined voltage, turn on the pressure-sensing switch to protect the pump; and if the engine voltage is lower than the second predetermined voltage, turn off the pressure-sensing switch to enable the engine to be started.
F04D 15/02 - Stopping of pumps, or operating valves, on occurrence of unwanted conditions
A62C 25/00 - Portable extinguishers with power-driven pumps
F02D 29/04 - Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving pumps
F04D 13/02 - Units comprising pumps and their driving means
H02H 5/08 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays
A fire hose coupling, such as a quarter-turn Storz-style coupling, has a substantially annular body having a first end connected to a fluid-carrying conduit and a second end for connecting to another coupling. The fire hose coupling also includes at least one locking lever movable between an unlocked position and a locked position. The lever locks the annular body of the coupling to the other coupling. The locking lever has a light-reflecting surface to improve visibility of the lever. This facilitates assembly and disassembly of the couplings in conditions of poor visibility.
F16L 37/113 - Couplings of the quick-acting type in which the connection between abutting or axially-overlapping ends is maintained by locking members using a rotary external sleeve or ring on one part the male part having lugs on its periphery penetrating into the corresponding slots provided in the female part
F16L 35/00 - Special arrangements used in connection with end fittings of hoses, e.g. safety or protecting devices
F16L 37/252 - Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet-action the coupling being co-axial with the pipe the male part having lugs on its periphery penetrating into the corresponding slots provided in the female part
A fire hose coupling comprises a body having a first end connected to a fire hose and a second end having either male or female threads or, alternatively, a quarter-turn sexless coupler. The fire hose coupling comprises a recessed portion formed in an outer surface of the body. The recessed portion is shaped to define a visuotactile directional indicator such as an arrow. The recessed portion may include a light-reflecting surface to enhance visibility such as a super reflective metal film, a photo luminescent coating, or a phosfluorescent coating. The recessed directional indicator may be formed in female, male or sexless (Storz) couplings.
F16L 19/00 - Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts
F16L 37/252 - Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet-action the coupling being co-axial with the pipe the male part having lugs on its periphery penetrating into the corresponding slots provided in the female part
A fuel can adapter is designed to be used with a fuel can having a neck that is internally and externally threaded. The fuel can adapter includes a plate having external threads for engaging internal threads of the neck, the plate including a hole. The adapter includes a sliding tube mounted to slide within the hole in the plate. The adapter includes an elbow mounted at an upper end of the tube, the elbow including an outlet. The adapter further includes a protrusion extending from the plate beside the hole. The elbow bears against the protrusion to exert a torque on the plate that threads or unthreads the plate from the neck of the fuel can.
B67D 7/04 - Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring fuels, lubricants or mixed fuels and lubricants
B67D 7/00 - Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
B67D 7/78 - Arrangements of storage tanks, reservoirs or pipe-lines
A fire hose coupling comprises a body having a first end connected to a fire hose and a second end having either male or female threads or, alternatively, a quarter-turn sexless coupler. The fire hose coupling comprises a recessed portion formed in an outer surface of the body. The recessed portion is shaped to define a visuotactile directional indicator such as an arrow. The recessed portion may include a light-reflecting surface to enhance visibility such as a super reflective metal film, a photo luminescent coating, or a phosfluorescent coating. The recessed directional indicator may be formed in female, male or sexless (Storz) couplings.
F16L 19/00 - Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts
F16L 37/252 - Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet-action the coupling being co-axial with the pipe the male part having lugs on its periphery penetrating into the corresponding slots provided in the female part
A cam and groove coupling joint has a male coupling having a substantially tubular body that includes a pair of grooves in the body and a female coupling having a substantially tubular body that includes two pairs of lugs on the body and further includes pins that are supported by each pair of lugs. A pair of cam arms are pivotally mounted to the pins between the lugs. The cam arms are movable between an open position in which the male coupling is free to move relative to the female coupling and a closed position in which a cam of each cam arm engages the groove to lock the male coupling inside the female coupling. A wire clip secures the cam arms in the closed position, the wire clip being movable between a secured position in which the wire clip secures the cam arm to prevent opening of the cam arm and an unsecured position in which the cam arm is free to be opened, wherein the wire clip has a first segment of wire extending through holes in the lugs such that the wire clip is able to slide orthogonally with respect to the cam arm while being permanently mounted to the female coupling and wherein the wire clip has a second segment substantially parallel to the first segment that is extendable over the cam arm to secure the cam arm.
F16L 37/18 - Joints tightened by eccentrics or rotatable cams
F16B 2/24 - Clips, i.e. with gripping action effected solely by the inherent resistance to deformation of the material of the fastening of resilient material, e.g. rubbery material of metal
23.
Cam and groove coupling with locking wire mechanism
A cam and groove coupling joint has a male coupling and a female coupling that includes two pairs of lugs on the body and further includes pins supported by each pair of lugs. A pair of cam arms are pivotally mounted to the pins between the lugs. The cam arms are movable between an open position in which the male coupling is free to move relative to the female coupling and a closed position in which a cam of each cam arm engages the groove to lock the male coupling inside the female coupling. A rotatable wire clip secures the cam arms in the closed position, the wire clip being rotatably connected to each lug between a secured position in which the wire clip secures the cam arm to prevent opening of the cam arm and an unsecured position in which the cam arm is free to be opened.
A fire hose coupling includes a substantially annular body having a first end adapted to connect to a fire hose and a second end having male threads. The annular body has a central bore. The coupling includes circumferentially spaced-apart lugs extending radially outwardly from an outer surface of the first end of the body. The coupling further includes a protective shoulder extending radially outwardly from the body between the male threads and the lugs. The protective shoulder has an outer diameter greater than an outer diameter of the male threads to thereby protect the male threads.
The present invention thus provides a double-jacketed lay-flat fire hose having an inner tube for conveying fluid, an inner jacket surrounding the inner tube and an outer jacket surrounding the inner jacket. The outer jacket is made of an abrasion-resistant woven fabric material that includes four longitudinal, spaced-apart and generally parallel stripes formed each of a bundle of longitudinally aligned filament yarns. This outer jacket is less prone to trapping air between the outer jacket and the inner jacket.
A fuel can adapter is designed to be used with a fuel can having a neck that is internally and externally threaded. The fuel can adapter includes a plate having external threads for engaging internal threads of the neck, the plate including a hole. The adapter includes a sliding tube mounted to slide within the hole in the plate. The adapter includes an elbow mounted at an upper end of the tube, the elbow including an outlet. The adapter further includes a protrusion extending from the plate beside the hole. The elbow bears against the protrusion to exert a torque on the plate that threads or unthreads the plate from the neck of the fuel can.
B67D 7/04 - Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring fuels, lubricants or mixed fuels and lubricants
B67D 7/00 - Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
29.
Lightweight fire hose coupling with protective shoulder and method of manufacturing the coupling
A fire hose coupling includes a substantially annular body having a first end adapted to connect to a fire hose and a second end having male threads. The annular body has a central bore. The coupling includes circumferentially spaced-apart lugs extending radially outwardly from an outer surface of the first end of the body. The coupling further includes a protective shoulder extending radially outwardly from the body between the male threads and the lugs. The protective shoulder has an outer diameter greater than an outer diameter of the male threads to thereby protect the male threads.
The present invention thus provides a double-jacketed lay-fiat fire hose having an inner tube for conveying fluid, an inner jacket surrounding the inner tube and an outer jacket surrounding the inner jacket. The outer jacket is made of an abrasion-resistant woven fabric material that includes four longitudinal, spaced-apart and generally parallel stripes formed each of a bundle of longitudinally aligned filament yarns. This outer jacket is less prone to trapping air between the outer jacket and the inner jacket.
F16L 11/12 - Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
A fire hose coupling, such as a quarter-turn Storz-style coupling, comprises a substantially annular body having a first end connected to a fire hose and a second end having internal engagement lugs for connecting to lugs on another coupling. The coupling includes at least one locking lever movable between an unlocked position and a locked position, the lever locking the annular body of the coupling to the other coupling. The one or more locking levers comprise a light-reflecting surface to improve visibility of the lever. This facilitates assembly and disassembly of the couplings in conditions of poor visibility.
F16L 35/00 - Special arrangements used in connection with end fittings of hoses, e.g. safety or protecting devices
F16L 37/252 - Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet-action the coupling being co-axial with the pipe the male part having lugs on its periphery penetrating into the corresponding slots provided in the female part
A fire hose coupling comprises a body having a first end connected to a fire hose and a second end having threads. The fire hose coupling comprises a recessed portion formed in an outer surface of the body. The recessed portion is shaped to define a visuotactile directional indicator such as an arrow. The recessed portion may include a light-reflecting surface to enhance visibility such as a super reflective metal film, a photo luminescent coating, or a phosfluorescent coating. The recessed directional indicator may be formed in either female or male couplings.
F16L 19/00 - Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts
F16L 37/252 - Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet-action the coupling being co-axial with the pipe the male part having lugs on its periphery penetrating into the corresponding slots provided in the female part
39.
HIGH-VISIBILITY LOCKING LEVERS FOR FIRE HOSE COUPLINGS
A fire hose coupling, such as a quarter-turn Storz- style coupling, comprises a substantially annular body having a first end connected to a fire hose and a second end having internal engagement lugs for connecting to lugs on another coupling. The coupling includes at least one locking lever movable between an unlocked position and a locked position, the lever locking the annular body of the coupling to the other coupling. The one or more locking levers comprise a light-reflecting surface to improve visibility of the lever. This facilitates assembly and disassembly of the couplings in conditions of poor visibility.
F16L 31/00 - Arrangements for connecting hoses to one another or to flexible sleeves
F16L 37/252 - Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet-action the coupling being co-axial with the pipe the male part having lugs on its periphery penetrating into the corresponding slots provided in the female part
A fire hose coupling comprises a body having a first end connected to a fire hose and a second end having either male or female threads or, alternatively, a quarter-turn sexless coupler. The fire hose coupling comprises a recessed portion formed in an outer surface of the body. The recessed portion is shaped to define a visuotactile directional indicator such as an arrow. The recessed portion may include a light-reflecting surface to enhance visibility such as a super reflective metal film, a photo luminescent coating, or a phosfluorescent coating. The recessed directional indicator may be formed in female, male or sexless (Storz) couplings. Since the light-reflecting directional indicator is recessed, it will not cause the hose assembly to snag or catch when the hose is dragged through a burning structure, nor will the directional indicator abrade or wear over time. This coupling enables firefighters to readily determine the exit direction when operating in dark and smoky conditions.
17 - Rubber and plastic; packing and insulating materials
24 - Textiles and textile goods
Goods & Services
(1) Extruding machines for manufacturing elastomer lined woven textiles and extrusion dies for use therein.
(2) Elastomer lined woven textiles and hoses made therefrom.
(3) Elastomer lined woven textiles.
