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Document Title |
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7607383 |
System for backup rod seal for hydraulic cylinder
A rod sealing system for use with a hydraulic cylinder is disclosed. The hydraulic cylinder has a cylinder tube and a cylinder head defining a working chamber. A piston is disposed for linear...
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7543656 |
Breathing for single acting hydraulic cylinders
A single acting hydraulic cylinder apparatus includes a mechanism operated by a single acting hydraulic cylinder, the mechanism including a hollow member. A breathing chamber is provided by sealing...
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7458314 |
Gas spring
A gas spring ( 1 ) comprises a piston rod ( 4 ) projecting from an open end of a cylinder ( 2 ) so as to be able to elongate and contract axially, and a dust seal ( 10 ) which is in contact with...
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7455010 |
Expanded barrel hydraulic cylinder assembly
The hydraulic cylinder assembly of the present invention provides an enlarged barrel and a compressible locking ring that secure a rod gland in the rod end of the cylinder. The tapered barrel...
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7448311 |
Displacement difference-absorbing mechanism for cylinder apparatus
A coupler is provided inside an engaging hole of a piston yoke, which is connected to pistons. A slider is installed on an upper portion of the coupler through a coupler-insertion hole. An engaging...
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7448310 |
Innerscoping hydraulic system
A hydraulic cylinder and associated hydraulic system that includes a sleeve cylinder in mechanical contact with a base and stationary between extended and retracted positions, which defines a...
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7421782 |
Method for manufacturing internal combustion engine piston
A method is provided for efficiently manufacturing a high quality internal combustion engine piston having an annular cavity allowing for good circulation of cooling fluid. An annular groove is...
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7412920 |
End cap assembly
A fluid activated cylinder assembly including an end cap having an annular protrusion and a hollow cylinder having an end zone. The cylinder applies compressive force to the annular protrusion in...
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7353748 |
Linear actuator and method for processing the same
A bent section, which is bent substantially perpendicularly toward a main cylinder body, is formed at one end of a slide table. Further, a pair of ball-rolling grooves, in which a plurality of ball...
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7343849 |
Cylinder apparatus
A piston, which is provided in a cylinder tube, is connected to a pair of guide rods by the aid of a plate. The guide rods are arranged displaceably in the axial direction along guide holes of the...
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7313999 |
Piston for a reciprocating machine
A piston includes a piston body fitted into a cylinder bore and having a sliding peripheral surface disposed in sliding contact with the inner peripheral surface of the cylinder bore. The sliding...
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7311036 |
Pneumatic cylinder
A pneumatic cylinder has a shaft member having a piston and a piston rod combined with each other in an axial direction, a cylinder body supporting the shaft member with the piston rod protruding...
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7225725 |
Bi-directional pneumatic motor
A pneumatic motor for providing bi-directional linear motion including a motor housing having a cylinder bore and a piston mounted on a piston rod positioned in the cylinder bore. The ends of the...
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7219594 |
Coolant system for piston and liner of reciprocating pumps
A reciprocating pump assembly includes piston rod that is movable and reciprocates in order to pump a fluid. The piston rod has a piston portion at an end that stokes within a piston chamber. The...
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7217105 |
Integrated pump and wash pump
A pump apparatus is provided which comprises a first displacement pump and a ceramic valve construction formed of a ceramic rotor, a ceramic stator having flat surfaces which are positioned in...
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7214039 |
Integrated ratio pump and check valve apparatus
A pump apparatus is provided which comprises a plurality of displacement pumps each connected to a check valve apparatus. The displacement pumps each comprises a reciprocating piston within a...
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7210397 |
Scotch yoke engine
A scotch yoke type fluid device where the or each piston ( 32 ) has its own slider ( 18 ) and its own pair of sliding surfaces ( 30 ) disposed on the same side of the big end bearing ( 16 ) of the...
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7165487 |
Cylinder protective apparatus for preventing strange noise
Disclosed is a cylinder protective apparatus for preventing strange noise in which an impact damper is fixed to an inner side of a cylinder cover to prevent collision between the cylinder cover and...
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7131822 |
Swash plate compressors with non-circular pistons and cylinders
A swash plate compressor comprises a swash plate located for rotation in a housing and a compression unit that forms a part of the housing. The compression unit has cylinder bores that guide...
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7127982 |
Linear drive with non-rotating piston
A fluid power linear drive including a housing having an inner surface defining a piston receiving space, a piston reciprocally movable within the piston receiving space and a cooperative...
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7100492 |
End cap assembly
A fluid activated cylinder assembly including an end cap having an annular protrusion and a hollow cylinder having an end zone. The cylinder applies compressive force to the annular protrusion in...
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7083164 |
Cushion and cushion cylinder for ram or bolster of a press
A high-pressure, inert gas cushion assembly for the ram or bolster of a metal stamping press includes a manifold having fluid-flow passages defined therein, along with a plurality of cylinder...
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7080975 |
Integrated pump and ceramic valve
A pump apparatus is provided which comprises a displacement pump and a ceramic valve construction formed of a ceramic rotor and a ceramic stator having flat surfaces which are positioned in sealing...
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7056100 |
Piston assembly for a compressor
A compressor for a vehicle air conditioning system comprises a front casing in which is mounted a swash or wobble plate arrangement operatively connected to a drive shaft and a plurality of pistons...
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7017346 |
Device for transmitting a displacement of an actuator using an elastomer ring
A device for transmitting a displacement of an actuator to a setting element comprises two pistons that delimit two transmission chambers and a compensation chamber with a housing. The compensation...
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6978526 |
Structure of a rivet nut gun
A structure of rivet nut gun having a body, a handle and a pressure cylinder. The top of the handle is furnished with a mounting base having a through cylindrical hole. The lower end of the handle...
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6964166 |
Hydraulic master cylinder for vehicle
A hydraulic master cylinder for vehicle has: a cylinder main body; a sleeve; a plurality of seal rings; a plug, a lid member comprising the sleeve and the plug; and a piston inserted into the...
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6929254 |
Swing-arm clamp
A swing-arm clamp is provided. The swing-arm clamp has a locating member that is movable in concert with a rod which is disposed in the clamp. The locating member engages a guide when the arm is...
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6807896 |
High pressure supply pump with lifter guide and method of manufacturing the lifter guide
In a lifter guide of a high pressure supply pump, a flat plate, whose periphery line is provided with a projection and whose the other periphery line circumferentially opposed to the periphery line...
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6792845 |
Linear drive unit
A linear drive unit ( 1 ) possesses a first principal body ( 2 ) with a U-like section part ( 4 ) and furthermore a second principal body ( 3 ) with a drive housing ( 7 ). Using at least one drive...
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6732630 |
Ultrathin cylinder
An ultrathin cylinder includes a cylinder bore formed in a short columnar cylinder body and having an axial length smaller than its radius, a short cylindrical piston for sliding in the cylinder...
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6711985 |
Sealed glide adapter
A glide adapter for a lift includes an inner seal extending between the piston rod and glide adapter to prevent leakage of hydraulic fluid which may escape the hydraulic cylinder from seeping from...
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6668701 |
Piston seal
In an assembly, e.g. a fluid pump, comprising an elongate member (e.g. a displacement rod ( 16 )) slidably disposed with respect to a sealing member (e.g. seal ( 18 )) the elongate member comprises...
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6631671 |
Piston-type machine with conrod-free mechanism
The present invention pertains to the field of piston machines, mainly those that include a mechanism without any connecting rod for converting the reciprocating movement of the pistons into a...
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6591735 |
Swashplate compressor piston having an extra support surface
A swashplate type compressor that includes one or more pistons having an extra support surface for receiving a side load is provided. In a first preferred embodiment of the piston, a rotational...
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6591608 |
Folded guide link drive improvements
A system for supporting lateral loads on a piston undergoing reciprocating motion along a longitudinal axis in a cylinder includes a guide link for coupling the piston to a crankshaft undergoing...
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6539834 |
Slide table unit
Two rods 2 and 3 disposed in parallel to each other are supported through hydrostatic bearings 8 and 9 on a main body block 1, one end portions of the rods project from opposite faces...
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6536330 |
Piston cylinder device
An arrangement for a piston-and-cylinder unit is disclosed. The arrangement includes a cylinder member and a piston member movable therein, to which a piston rod is connected. The cylinder member...
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6502682 |
Hydraulic release system
The abstract relates to a hydraulic clutch release system, particularly for motor vehicles. The system 1 has a master cylinder and a slave cylinder, and the slave cylinder has a piston 7 which...
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6497173 |
Aggregate of pressure cylinders
An aggregate ( 10′ ) of pressure medium cylinders ( 11′, 12′ ) are used especially where there is required a relatively large length of stroke. At least a first ( 11′ ) and at least a...
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6487960 |
Hydraulic failsafe valve actuator
A hydraulic actuator for operating a gate valve. The actuator includes a stationary piston coupled to an actuator housing and a moveable cylinder disposed proximate the piston exterior surface. The...
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6422349 |
Hydrostatic displacement drive for lifting and lowering and holding loads, in particular for lifts
The hydraulic or pneumatic drive for lifting and lowering loads, in particular for lifts, has a working cylinder ( 11 ) forming a pressure chamber ( 14 ) connected to a pressure fluid source ( 39 )...
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6415706 |
Actuator
The description relates to an actuator for use at high and low temperatures, with a cylinder block ( 8 ), a piston ( 14 ) movable therein and a piston rod ( 22 ) secured to the piston. A first and...
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6408741 |
Hydraulic control device for motor vehicle clutch
A hydraulic control device for a motor vehicle clutch, comprising at least a control cylinder ( 10 ) wherein the cylinder ( 10 ) comprises a substantially tubular cylinder body ( 17 ) wherein a...
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6405535 |
Turbocharger with wastegate actuator
A turbocharger comprises a compressor wheel ( 6 ) mounted within a compressor housing ( 5 ) having a pressurized air outlet, a control valve ( 12 ) for regulating the pressure of air supplied from...
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6378418 |
Connecting rod assembly for high pressure injection pumps
A connecting rod assembly for connecting high pressure pumps to mechanical or hydraulic pump drives has been developed. This assembly comprises a crosshead incorporating a novel design which slides...
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6374724 |
Concentrically mounted hydraulic clutch slave cylinder
A concentric slave cylinder for motor vehicle manual transmissions in which the cylinder housing is fabricated from an inner cylindrical member having a base flange and an outer cylindrical member...
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6332392 |
Dual nested plunger transfer molding system and method therefor
A dual nested plunger transfer molding system. The dual nested plunger transfer molding system, comprises: a transfer plunger having a piston chamber internally, co-axially, positioned, integral...
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6325187 |
Dirt wiper system for suspension damper
A shock absorber has a pressure tube, a reserve tube, a piston rod and a rod guide. The rod guide is located between the pressure tube, the reserve tube and the piston rod. A sealing system is...
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6273231 |
Fluid operated clutch disengaging apparatus
A hydraulic clutch release system, particularly for motor vehicles has a master cylinder and a slave cylinder, and the slave cylinder has a piston 7 which is annular in form and works inside an...
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