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8127902 |
Annular sealing assembly for insertion between two mechanical members in relative motion, in particular a linear reciprocating motion, as a rod and the relative guiding seat of a mono-tube shock-absorber
A sealing assembly including a sealing ring made of elastomeric material and having, integrally in one piece, at least one elastically deformable, annular sealing lip, at least part of which...
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8109491 |
Vibration damper with a stop spring
A vibration damper, comprising a damping medium-filled cylinder, in which a piston rod is guided with freedom of axial movement, where, inside a working space in the cylinder, a stop spring in the...
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8091468 |
Fluid power linear drive device
A fluid power linear drive device comprises a housing tube on whose outer periphery an output drive slide can slide linearly. For this purpose on the outer periphery of the housing tube there are...
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7958980 |
Protection device for cylinder
A conventional solid protection device disposed on an exposed side of a cylinder for actuating a working device had a possibility of being permanently deformed by contacting an obstacle so as to be...
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7845060 |
Method for the production of a catching connection in a linear drive
A method of providing a linear drive with an axially play-free entrainment connection between at least one linearly travelling rod (5) and a guide unit able to be moved parallel thereto. Between a...
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7836816 |
Retaining ring for fluid pressure cylinder
A cylinder tube includes a cylinder hole therein through which a piston is displaceably inserted. A head cover and a rod cover are installed respectively into ends of the cylinder hole. Locking...
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7823499 |
Surface tension seal
Present invention involves a seal means suitable to replace the classic seals. For instance the seal means of present invention can be a liquid seal ring (7) to replace the classic rubber seal...
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7784395 |
Zero emissions reciprocating pump
A sealing system for a pump having a plunger includes a housing having an internal chamber adapted to receive a portion of the plunger. Primary and secondary seals are located within the internal...
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7779748 |
Piston pump
A piston pump, having a pump housing in which a pump piston is guided in an axially moving fashion so that when the pump piston is actuated, a fluid is conveyed from a suction side to a pressure...
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7726231 |
Utility pump
A lightweight, inexpensive, corrosion proof, utility pump having a flexible member forming a sliding interference fit with a pump rod with the flexible member confined between a pump rod bushing...
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7654189 |
Heavy duty cylinder
A cylinder for a piston-cylinder assembly comprises an extruded stainless steel cylinder body and stainless steel end caps mounted to opposite ends of the body. A unique configuration of three...
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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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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 the piston...
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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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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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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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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 crank...
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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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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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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 means the...
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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 a...
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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 facing each...
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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 is...
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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 second (12′) p...
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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) and...
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