Famous Patents
Pong, the Atari creation that launched the computer game craze, came with these instructions: "Avoid missing ball for high score."
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7441492 | Eccentric drive mechanism for volumetric pumps or motors Drive mechanism having stroke member (HG) fixed to shaft (W) of a mechanism having eccentric bearing (HL) which connects stroke member (HG) to coupling member (KG) connected by transverse bearing (QL) to pressure member (DG). Included is pressure source (DQ) for flu... | 10/28/2008 |
| 7117782 | Compressor and method of lubricating the compressor A compressor is provided for guiding lubricating oil separated from the discharged refrigerant by an oil separator to a radial bearing supporting a drive shaft through an oil supply hole. A rotating member that rotates together with the drive shaft is provided adjac... | 10/10/2006 |
| 7096844 | Four-stroke engine lubricated by fuel mixture A four-stroke engine includes a piston cylinder, and a piston located in the cylinder and movable within the cylinder. The engine includes a crankcase attached to the cylinder, the piston providing a separation boundary of a combustion portion of the cylinder from t... | 08/29/2006 |
| 6973868 | Dry-running piston compressor (crankshaft drive lubrication) The invention relates to a dry-running piston compressor, in particular for rail vehicles. Said compressor comprises a crankcase (3) for a crankshaft (15) that is rotatably mounted in said crankcase, the latter being provided with at least one pot-type... | 12/13/2005 |
| 6862975 | Apparatus for lubricating piston type compressor A lubricating structure in a piston type compressor has a housing, a device for being lubricated and a rotary shaft. The housing defines an accommodating chamber and a suction pressure region. The device for being lubricated is located in the accommodating chamber. ... | 03/08/2005 |
| 6796778 | Fuel injection pump having throttled fuel path for fuel lubrication In a fuel path through which fuel is supplied to a pump-cam chamber accommodating a drive shaft and a cam for lubrication, an annular throttle fuel path is formed between an inside wall of a cylindrical body and an outside wall of a sphere, when the sphere is in con... | 09/28/2004 |
| 6318502 | Compressor for producing oil-free compressed air In a compressor that can be used for supplying compressed air in motor vehicles and also for stationary systems, permanent oil filling is provided for cooling a compressor pressure area including a cylinder head and for lubricating a transmission area inc... | 11/20/2001 |
| 6077056 | Reciprocating pump The invention relates to a high pressure reciprocating pump, for a fuel injection system of an internal combustion engine, having at least one piston, which is displaceably supported in a piston guide provided in a housing and therein defines a work chamb... | 06/20/2000 |
| 5743168 | Device for lubricating an assembly between two mechanical components which can move with respect to each other, especially a connecting rod/piston articulation A device including a first moving part such as a piston (1) and a second moving part such as a connecting rod (2) with a coupling part (4) therebetween. A low-pressure compressible liquid lubricant feed system delivers a liquid into a chamber (10) with a ... | 04/28/1998 |
| 5400871 | Slideway guide unit A slideway guide unit for column ways in toolmaking and machine construction comprises a guide unit and a sliding element, secured to it and in contact with a guideway, together with a lubricating device for lubricating the guideway. The invention prevent... | 03/28/1995 |
| 5180291 | Pulsating oil injector for radial refrigerant compressor A radial refrigerant compressor assembly for use in automotive refrigerant systems and capable of being cycled between on and off conditions having a fluid passageway extending between the bottom portion of the discharge chamber which operates at discharg... | 01/19/1993 |
| 5172623 | Hydraulic rotary machine with pre-discharge opening for lubrication supply The rotary machine of the invention includes a series of cylindrical chambers swept by pistons in hydraulic liquid admission-and-discharge cycles and alternately connected to high pressure openings and to low pressure openings during each revolution of th... | 12/22/1992 |
| 5064350 | Pump station The invention relates to an improved reciprocating pump providing oil for low pressure, self-contained oil-filled cables. it is particularly important to have a gas tight system in such a pumping plant since the oil in the storage tank (6) has to be kept ... | 11/12/1991 |
| 4930404 | Very high pressure piston pump The very high pressure piston pump can compress a conveying agent (20) to a pressure of approximately 22 kbar. The high pressure sealing comprises a pressure-compensated ice sealing, which operates free of leakage and with reduced friction. To reduce the ... | 06/05/1990 |
| 4831979 | Wrist pin lubrication system for two-cycle engines A wrist pin lubricating system for a multi-cylinder two-cycle engine comprises a passage system for collecting and distributing crankcase condensate to the piston wrist pin bearings. A slot in each piston skirt provides continuous communication between ea... | 05/23/1989 |
| 4762050 | Rotary hydraulic actuator The annular transmission block (13) is pressed against the transmission face (8) of the cylinder (5) when the oil pressure arrives via the duct (17). At that moment, one of the two grooves (19 or 10) can supply one of the two ducts (9 or 10) in such a way... | 08/09/1988 |
| 4696223 | Pneumatic pressure actuator A pneumatic pressure actuator including a cylinder assemblage having a pair of metallic cylinder heads and a fiberglass cylinder casing held together by a plurality of tie bolts and nuts. A piston and piston rod reciprocally movable within the cylinder as... | 09/29/1987 |
| 4671743 | Piston pump In the case of piston-machines and in particular those having an elastically deformable sealing tube between the piston and the cylinder, which causes a relatively large structural length of the cylinder-piston arrangement and is provided if necessary wit... | 06/09/1987 |
| 4552344 | Barrier fluid sealed piston for road wheel suspension A hydropneumatic suspension unit includes a large diameter flanged road arm spindle which is bolted to the vehicle hull; a road arm has one end rotatably mounted on the road arm spindle and another end mounting a road wheel; a barrier fluid sealed piston ... | 11/12/1985 |
| 4550805 | Hydrostatic lubrication system for a walking beam An improved lubrication system for the hydrostatic lubrication of an upper bearing and cylinder wall and piston of a walking beam compressor. The lubrication system introduces oil under pressure, around an upper bearing used for supporting a piston shaft ... | 11/05/1985 |
| 4389922 | Reversing low pressure lubricating valve A lubricating valve for a moveable piston, the valve supplying lubricant at low pressure and being reversible automatically in response to a reversal of the higher pressure which drives the piston.... | 06/28/1983 |
| 4384510 | Method and device for feeding lubricant to a cylinder-piston arrangement The method and the device for the lubricant feed works by introduction of the lubricant into a clearance volume (3b) between a, for example, tubular flexible sealing element of a cylinder-piston arrangement and a bearing surface within the working stroke ... | 05/24/1983 |
| 4229011 | Lubrication system for reciprocating plunger compressors An improved lubrication system is provided for the cylinder of a reciprocatory plunger rod compressor, having a stationary annular seal assembly around said plunger rod. The key feature of this system resides in the incorporation of check valves in lubric... | 10/21/1980 |
| 4218961 | Lubricating system for high-pressure pump A high-pressure pump has a housing whose cylindrical chamber is subdivided by a piston into a fixed-volume compartment and a variable-volume compartment. An orbital crank is connected via a connecting rod to this piston to reciprocate it in the housing an... | 08/26/1980 |
| 4186654 | Recirculating lubrication system Improved lubrication system for multiplex pumps including lubrication reservoir means, pump means, filtration means and valve means.... | 02/05/1980 |
| 4140442 | High pressure pump There is disclosed an improved high pressure pump which includes an improved valve system wherein each of the valve assemblies includes a valve housing having a cup-shaped chamber surrounded by an apertured sidewall, an apertured top wall and a defined op... | 02/20/1979 |
| 4137015 | Energy conversion system using windmill A system for recovering the energy from atmospheric wind wherein a windmill operates a compressor for compressing air which is stored in one or more tanks. The compressed air is used to drive a prime mover coupled by gear means to an electrical generator ... | 01/30/1979 |
| 4044859 | Lubricating means for gas-operated cylinders In a fluid spring arrangement for a metal forming die assembly of the gas-operated, piston-cylinder type, the surfaces of the piston and cylinder which are in sliding contact are lubricated by lubricant entrained in the pressurized gas directed into the w... | 08/30/1977 |
| 3988969 | Rotary hydraulic jack A rotary hydraulic jack having two jack compartments, comprising a rotary hydraulic joint for the supply of hydraulic liquid to and the evacuation of hydraulic liquid from at least one of the compartments. The hydraulic joint comprises a fixed, hollow cyl... | 11/02/1976 |
| 3982471 | Seal in pump piston intermittently permitting conduction of pump fluid An improvement in liquid pumps having a piston with a packing surface which reciprocates in contact with a cylinder, comprising means for increasing the life of the packing by transmitting thereto a small portion of the liquid being pumped, for absorption... | 09/28/1976 |
