Matches 1 - 50 out of 191 1 2 3 4 >
Match Document Document Title
7584694 Composite piston for an internal combustion engine  
The invention relates to an assembled piston ( 1 ) for an internal combustion engine, said piston consisting of an upper part ( 4 ) provided with a combustion cavity ( 8 ), and a lower part ( 5 )...
7516691 Hydraulic linear drive, particularly a hydraulic transmission actuator  
A hydraulic linear drive, particularly a hydraulic transmission actuator, having a piston/cylinder unit, in which an actuating piston longitudinally displaceably arranged in the cylinder housing...
7513191 Piston head for hydraulic injection molding machine  
A piston head of a hydraulic injection molding machine is screwed with a tie rod inside a hydraulic cylinder of the hydraulic injection molding machine. The piston head has a second screw formed in...
7357066 Sealing structure of an up-down type piston assembly for exhausting a content  
The disclosed sealing structure is used with a piston assembly which exhausts a content. A sealing washer has a sealing hole through which a screw pillar is inserted and is configured to be formed...
7353749 Piston retention apparatus and method  
An apparatus and method for coupling a piston member to a rod member to create a piston and rod assembly are provided. The piston and rod assembly may include a piston member having a longitudinal...
7350454 Cylinder unit for mounting on a cross member and/or a table of a device or machine for the deformation of workpieces  
A cylinder unit for mounting on a machine for the deformation of workpieces includes a cylinder block and a pressure plate which is arranged on the surface of the cylinder block which faces away...
7341037 Engine piston and manufacture  
An engine piston is manufactured by assembling an outer shell, comprising a crown and tubular side wall in which a ring groove region and skirt are defined, with a plate-like mounting member and...
7273004 Reciprocating machine  
The radial piston or reciprocating engine ( 1 ) has annularly juxtaposed, radially directed piston-cylinder units ( 2, 3 ). The outward stroke of the pistons ( 2 ) is controlled by the cam ( 11 )...
7258060 Piston and scraper assembly  
A piston and scraper assembly ( 26 ) for a high-pressure liquid chromatography column ( 1 ) is provided with a snap lock between the piston ( 5 ) and the scraper ( 25 ). The snap lock comprises a...
7228788 Piston structure for an air pump  
A piston for an air pump is disclosed. The piston has a piston rod having a connecting axle hole for positioning a bearing, which is protected with a bearing protection cap. The bearing is firmly...
7197976 Composite piston  
Devices, piston components, and methods are provided for an improved piston. One embodiment for a piston component includes a base having a side to receive a piston body. A tang is provided to the...
7174829 Adjustable piston pump  
An adjustable piston pump for displacement and extraction of remnant from soft sand and or soft soil includes a pump casing cylinder that is capped at one end and opens at the other end. It...
7131418 Cooled piston for an internal combustion engine  
The invention relates to a cooled piston ( 1 ) for an internal combustion engine comprising a cooling duct ( 2 ). This cooling duct encircles in an annular manner inside the piston head at the...
7093529 Composite piston  
Devices, piston components, and methods are provided for an improved piston. One embodiment for a piston component includes a base having a side to receive a piston body. A tang is provided to the...
7093361 Method of assembling an actuator with an internal sensor  
A method of installing a piston position sensor proximate to a closed end of a hydraulic cylinder is provided. The sensor is attached to the face of a piston and that piston/sensor combination is...
7063004 Piston assembly  
Apparatus and methods for assembling a piston assembly that comprises a piston comprising a head end flange and a crank end flange and a rod having a head end shoulder and a crank end shoulder. The...
6892625 Double rod end cylinder with split ring coupling  
A fluid-actuated cylinder includes a piston rod with a circumferential groove. A split ring, with predetermined linear expansion properties, is cooled to a temperature below the temperature of the...
6837144 Piston and cylinder unit including a housing, a piston and a piston rod  
A piston and cylinder unit includes a housing, a piston and a piston rod. The piston rod has an outer surface being designed to be symmetrical with respect to a first axis. The piston rod includes...
6834575 Piston assembly for a radial piston hydraulic motor  
The invention refers to a piston assembly for a radial piston hydraulic motor. The essence of the solution lies in that a longitudinal axis ( 12 ) of a roller ( 11 ) substantially coincides with an...
6823769 Device and method for fixing a piston or a piston rod attachment to a piston rod  
Method and arrangement for fixing a piston ( 1 ), or a piston rod attachment, to a piston rod ( 5 ), one of the piston ( 1 ) and the piston rod ( 5 ) having a hole ( 2 ) running in its axial...
6817278 Piston assembly for hydraulic cylinder  
A piston assembly for use in a hydraulic cylinder includes a piston head configured to slide axially within the hydraulic cylinder in response to changes in hydraulic pressure. The piston head has...
6763758 Multi-part cooled piston for an internal combustion engine  
A multi-part cooled piston for an internal combustion engine comprises a one-piece piston upper part having a combustion bowl and an annular wall with a piston-ring part, and a one-piece piston...
6637316 Pressure fluid cylinder with optional anti-rotation feature  
A pressure fluid cylinder with anti-rotation feature, includes a cylinder tube of non-circular inner cross section and a piston which is sealingly received in the tube. The piston has a circular...
6471496 Piston pump for a vehicle brake system  
To enable economical production of a piston for a piston pump, the piston is made from a tubular deformed part and a closure plug, which is press-fitted with a protrusion into the deformed part....
RE37565 Piston-cylinder assembly  
In a piston-cylinder assembly with a shaftless piston, the aim is to improve the lateral guidance of the connecting rod, to reduce edge wear and the seizing tendency in the event of fault during...
6327964 Reciprocating pump  
The invention relates to a piston pump with a piston (10) that is guided so that it can move axially in a pump bore (12) of a pump housing (14). In order to simplify the manufacture of the piston...
6318236 Reciprocal motion type compressor having a piston in which strength is increased  
There is provided a reciprocal motion type compressor which has a piston reciprocally movable in a cylinder. The piston has a piston cover and a piston body portion. The piston cover has an...
6276261 Piston assembly of a hydraulic radial piston-type machine  
A piston assembly of a hydraulic radial piston-type machine, an essential characteristic thereof being the arrangement of a roller element in a piston head. The portion of contact surface of the...
6196125 Sealing arrangement in hydraulic press  
A hydraulic press including a cylinder barrel, a piston and a seal housing. The cylinder barrel has an inner peripheral surface. The piston has a pressure side surface and is inserted in the...
6035634 Compact, resistance regulated, multiple output hydraulic tool and seal valve arrangement  
A hydraulic device includes a housing and a bulkhead disposed in the housing. A pump piston is provided in the housing and has first and second end surfaces with the second end surface of the pump...
5980214 Fluid pump with split plungers  
A fuel pump (10) for supplying fuel to an internal combustion engine employs at least one composite pumping plunger (43) disposed within a plunger bore (46) for reciprocation therein. Each...
5979295 Hydraulic motor piston  
The present invention relates to a piston intended for a hydraulic radial piston motor and being of the type comprising an outer cam ring having an undulated inner cam surface, an inner cylinder...
5937736 Wobble piston with cooling fins extending through slots formed in the piston head  
An improved wobble piston for an air compressor. The piston has a head integrally connected to a connecting rod. The connecting rod has a free end for connection to a rotating eccentric. The piston...
5890415 Liquid pump  
A liquid pump has a pump head, a head holder which can be assembled with the pump head and a housing connected to the head holder, providing an internal space which connects to a liquid flow route...
5890417 Piston for a reciprocating compressor  
A piston/cylinder assembly for a reciprocating compressor has a piston comprising telescopingly connected first and second piston members. The first piston member is connected to a connecting rod....
5868554 Flexible plunger apparatus for free movement in gas-producing wells  
A flexible plunger apparatus includes an elongated flexible member having a pair of opposite end portions and a longitudinal length extending between the opposite end portions, with the flexible...
5740718 Modular piston rod assembly with integrated high-wear components  
A piston rod assembly is provided for operation in an outer cylinder. The piston rod assembly includes a first rod having first and second regions, wherein the first region has a hole transversely...
5727930 Valves and rod assembly  
A hollow through-bolt is threaded internally and externally, at one end, to receive therein a reciprocable, end-threaded rod. A pair of fluid-control valves, centrally bored, are mounted on the...
5701802 Multipart piston for an internal combustion engine  
An engine piston includes a piston head; a first bearing block forming a one-piece component with the piston head and having a first bearing face; a piston skirt being a component separate from the...
5655885 Reciprocating piston pump with modular fluid subassembly  
A double-displacement pump is compact, has a modular fluid subassembly made up a substantially cylindrical pump body and a piston reciprocally driven within the pump body. An outlet fluid cavity is...
5617725 Piston for a master cylinder  
A piston for a master cylinder comprises: a piston body made of resin which is inserted in a cylinder in such a manner that the piston body is in slide contact with the inner cylindrical surface of...
5588351 Head for two piece articulated piston  
A two-piece, or articulated, piston head for internal combustion engines having top and pin boss portions in which the underside of the top portion is provided with a groove whose inner wall is...
5586483 Piston and rod assembly  
An aluminum piston is mounted onto a steel piston rod by means of an intervening, steel hub. The piston, hollow with an opening at one end, pilotingly receives the hub in the opening. The hub has a...
5564327 Piston/piston rod assembly  
A piston/piston rod assembly wherein a piston is secured to a piston rod, and a sleeve (shell) is secured around the piston rod at predetermined locations along the length of the piston rod. The...
5564993 Continously-variable-ratio transmission of the toroidal-race rolling-traction type  
A roller-control unit for a continuously-variable-ratio transmission of the toroidal-race rolling-traction type, in which the roller carriage (10, 14) is connected by a pivotal joint (30) to the...
5479847 Dual-piston pump apparatus  
A dual-piston pump apparatus includes a pair of reciprocating sleeves within which a pair of reciprocating pistons are disposed. The pistons and sleeves are each supported on a frame for...
5435234 Mechanically retained wear-resistant ceramic pad  
A ceramic-metal composite structure which minimizes tensile ceramic loads and accommodates differences in thermal expansion characteristics between a metal member and a ceramic member without...
5421244 Segmented flow-through piston for use in a torpedo launching system  
An ejection pump apparatus of a torpedo launching system is provided with improved water piston which is more stable during use and which enables the intake end of the water cylinder and the sea...
5377580 Piston with an encompassing seal  
In a piston with an encompassing seal, which is seated slidably in a cylindrical receiving bore of a structural part such as a housing block and which can be acted upon by pressure on at least one...
5355774 Aircraft brake piston cap assembly  
The improved aircraft brake piston cap assembly (40, 40') comprises an aircraft piston (10) having a pair of openings (46) extending through the piston (10) and a piston cap (42) with a flange (44)...
Matches 1 - 50 out of 191 1 2 3 4 >