Did You Know...
...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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 |
| 7913817 | Oil pump unit for internal combustion engine An oil pump unit for an internal combustion engine can reduce the number of component parts to configure a simplified pump case, reducing the size and weight thereof. In an oil pump unit has a case cover put on the outside of a crankcase via a spacer and an oil tank... | 03/29/2011 |
| 7757816 | Transmission having a coaxial lubricant pump A transmission has a lubricant pump which is arranged in the interior of a transmission housing and which includes a rotor rotationally fixedly connected to a transmission shaft in a pump housing, with the pump housing being rotationally fixedly connected to the tra... | 07/20/2010 |
| 7367428 | Device for supplying a plurality of service points, such as lubricating points An apparatus for supplying a viscous material to locations, comprises: a pump; a supply line in fluid communication with the pump; a first main line having a first compression chamber; ... | 05/06/2008 |
| 7364018 | Oil pump drive assembly An oil pump drive assembly for an automobile engine includes an oil pump and a drive shaft. The drive shaft is rotatably secured to the oil pump for actuating the oil pump in response to rotation of the drive shaft. The drive shaft extends between a pump end secured... | 04/29/2008 |
| 7341039 | Lubrication system for a marine propulsion system with a tilted in-line engine A lubrication system for an in-line engine which has a piston symmetry plane that is tilted relative to a vertical plane is provided with an oil pan and windage tray that facilitates the transfer of oil from a rotating crankshaft to the oil pan without excessive aer... | 03/11/2008 |
| 7314353 | Pump assembly for transporting a cooling fluid A pump assembly includes a cam member arranged to rotate about an axis, and a piston pump having a cylinder body with a biased piston drivingly displaceable within the cylinder body and engageable with the cam member such that rotation of the cam member corresponds ... | 01/01/2008 |
| 7299895 | Engine crankcase An engine crankcase and transmission assembly includes a transmission housing including a forward mounting portion and a crankcase including a rear-mounting portion configured for mounting to the transmission. The rear-mounting portion of the crankcase includes an u... | 11/27/2007 |
| 7299780 | Dual high-pressure lube-oil pumps for diesel fuel injection A lube-oil pump system for a diesel engine's fuel injection system has a first and second pump. Each pump is a multi-plunger swash-plate type pump. The first pump mounts to a neck portion of a front cover of the engine's crankcase and has a driven gear that meshes w... | 11/27/2007 |
| 7264451 | Frame of reciprocating compressor A frame of a reciprocating compressor includes a main frame having a cylindrical insertion hole to receive a cylinder of a compression unit along a center axis thereof and a flange that supports an outer stator of a reciprocating motor at the outer circumference of ... | 09/04/2007 |
| 7174998 | Submerged electric fluid pump An electric fluid pump for a transmission, transfer case or an oil reservoir. The pump is contained within the transmission, transfer case or engine oil reservoir and has an open housing which allows fluid into the motor for cooling and lubrication. ... | 02/13/2007 |
| 7166210 | Oil filter cartridge The present invention relates to small vehicles such as lawn and garden tractors and more specifically to an oil filter cartridge or assembly usable with the transmissions of such vehicles. The cartridge is comprised of a filtering element, a strainer element and a ... | 01/23/2007 |
| 7117976 | Lubricating system affixed to a rotary shaft A lubricating system is affixed to and rotates with a rotary drive shaft, and provides automatic lubrication of the rotating bearings of a universal joint or similar articulated juncture in the shaft while the shaft is rotating. The present system includes a series ... | 10/10/2006 |
| 7107865 | Power transmission apparatus for vehicle The power transmission apparatus for a vehicle has a main shaft having drive gears mounted thereto and a countershaft having driven gears mounted thereto, and the respective shafts are attached to a case. A reverse shaft attached to the case has an idler gear for re... | 09/19/2006 |
| 7056432 | Tank mounted oil filter assembly The present invention relates to small vehicles such as lawn and garden tractors and more specifically to an oil filter assembly used with the transmissions of such vehicles. The filter assembly is housed within the transmission case to reduce mounting brackets outs... | 06/06/2006 |
| 7033149 | Medium pump adapted for ease of disassembly and assembly A medium pump for a motor includes a pump case with a pump cylinder and a pump piston positioned displacaebly in the pump cylinder in the direction of a pump axle. The pump piston rotates about the pump axle by running off an oblique control surface and realizes axi... | 04/25/2006 |
| 6986406 | Hydrostatic transmission An axle driving apparatus having a housing having two members joined along a joint surface and a hydraulic axial piston pump and motor mounted on a center section located in the housing, wherein the pump and motor are mounted perpendicular to one another. The motor ... | 01/17/2006 |
| 6941922 | Engine lubrication system A lubrication system for an engine including a sump for lubricant, a main pump operable to pump lubricant to first lubrication positions within the engine, and an auxiliary lubricant pump also operable to pump lubricant to second lubrication positions within the eng... | 09/13/2005 |
| 6929097 | Lubrication device for stage-geared gearbox An arrangement for providing a lubrication device for a stage-geared gearbox (1, 2) arranged in a motor vehicle. The gearbox (1, 2) has an input shaft (4), intermediate shaft (5), which has at least one gear meshing with a gear on the inp... | 08/16/2005 |
| 6631651 | Hydraulic circuit for an automated twin clutch transmission for motor vehicles A hydraulic circuit, particularly any for an automated twin clutch transmission for motor vehicles, including a countershaft with two parallel power transmission branches, two clutches, a high pressure circuit having at least one actuator for the counters... | 10/14/2003 |
| 6631787 | Lubrication system A lubrication system for a vibratory apparatus such as a hydraulic striking device. The system includes a lubricant pump for pumping lubricant to one or more points of lubrication on the device and a drive for the pump powered in response to vibration of ... | 10/14/2003 |
| 6564905 | Lubrication system for a marine engine Installation and assembly of an outboard motor made in accordance with the present invention is significantly simplified. Since no spline connection between the sleeve and the crankshaft is required, the engine can be attached to the adapter plate in a mu... | 05/20/2003 |
| 6554104 | Lubrication structure for internal combustion engine A lubrication structure for an internal combustion engine including an oil pump provided at a first end of an oil pump shaft arranged parallel to a crankshaft. Oil passageways are formed from a side surface of a pump chamber of the oil pump to another end... | 04/29/2003 |
| 6537115 | Oil pump construction for watercraft engine A lubrication system for an internal combustion engine includes an oil pump assembly driven by the crankshaft. The oil pump can be mounted in various positions for maintaining a low center of gravity of the engine. Optionally, or in addition, the engine c... | 03/25/2003 |
| 6502666 | Engine lubrication system An engine lubrication system is provided which has an oil pump for supplying lubricating oil from an oil pan to an area that is to be lubricated, the oil pump being positioned outside-the-oil pan and driven by a camshaft. An oil passage formation member f... | 01/07/2003 |
| 6494806 | Lubricating oil supply system for infinitely variable transmission A lubricating oil supply system for an infinitely variable transmission wherein the infinitely variable transmission has a transmission shaft provided with a lubricating oil path and is rotatably mounted through the wall section of a casing. The infinitel... | 12/17/2002 |
| 6481991 | Trochoid gear type fuel pump Two inner gears are overlapped with each other through a partition wall and are eccentrically arranged at an inner peripheral side of an outer gear, and eccentric directions of both the inner gears are shifted from each other by 180° to the opposite side... | 11/19/2002 |
| 6460655 | Vehicle hydraulic system A hydraulic system is provided for a vehicle having front, middle and rear portions. The hydraulic system includes a main pump located in the front portion, and a secondary pump located in the front portion which supplies fluid to an inlet of the main pum... | 10/08/2002 |
| 6371246 | Oil pump for outboard motor An oil pump for a lubricating system of an outboard motor is disclosed. The motor has a cowling defining an engine compartment, a water propulsion device, and a guide member having an upper surface and a lower surface, the guide member positioned in the c... | 04/16/2002 |
| 6244385 | Lubrication pressure controller A lubrication pressure controller comprises a lubrication pressure regulating valve 41, which is provided in a lubrication oil passage 36 directing hydraulic oil to lubricated parts, and a cooler pressure regulating valve 42, which is provided in a discha... | 06/12/2001 |
| 6102159 | Portable system for removing oil from an oil containing device A portable system for removing oil from an oil containing device. The system includes a pump, fluid conduit apparatus, and power conduit apparatus. The pump pumps the oil out of the oil containing device. The fluid conduit apparatus is in fluid communicat... | 08/15/2000 |
| 6098752 | Environmentally safe fluid changing system An oil changing device and process that allows a customer to service the fluids in an internal combustion engine or automatic transmission (their application) in a completely environmentally safe manner. The device is a conveniently located oil changing c... | 08/08/2000 |
| 6044931 | Lubrication system for an automatic transmission having dual input shafts A lubrication system is provided for a transmission including a lubrication pump driven by a reverse idler gear. The lubrication pump is supported by a partition plate having an inlet passage and an outlet passage formed therein for communicating with the... | 04/04/2000 |
| 6041892 | Oil pump for outboard motor An oil pump for a lubricating system of an outboard motor is disclosed. The motor has a cowling defining an engine compartment, a water propulsion device, and a guide member having an upper surface and a lower surface, the guide member positioned in the c... | 03/28/2000 |
| 6024193 | Lubricating system for engine powering offroad vehicle A lubricating system for an engine having a cylinder body and a crankcase, the cylinder body defining at least one cylinder, a piston movably mounted in the cylinder and connected to a crankshaft rotatably mounted in the crankcase defined by a crankcase m... | 02/15/2000 |
| 5921350 | Multi-purpose lubricating oil feeding machine control apparatus A multi-function lubricating oil feeding machine control apparatus is provided that responds to different conditions, and includes an oil feeding machine having a controller mounted thereon. The controller comprises a power supply circuit, a microprocessi... | 07/13/1999 |
| 5904841 | Fluid circulation centrifugal cleaner with pressure regulator A centrifugal fluid cleaning system includes a centrifugal cleaner through which a proportion of a circulated fluid is diverted, and a drainage assistance arrangement which includes a venturi arrangement through which non-diverted fluid is passed, the ven... | 05/18/1999 |
| 5853068 | Apparatus for exchange of automotive fluids An automotive fluid service machine for changing fluids such as automatic transmission fluid, power steering fluid, and engine coolant, includes a cabinet with a unitary integral fluid reservoir defined by a lower portion of the machine cabinet. This lowe... | 12/29/1998 |
| 5791311 | Oil pump sprocket cover for an internal combustion engine An oil pump sprocket cover for an internal combustion engine. One side of the oil pump sprocket cover is fixed to the crankcase and the other side of the oil pump sprocket cover is fixed to the oil pump, The oil pump sprocket cover protects the oil pump s... | 08/11/1998 |
| 5785149 | Screw-type compressor A screw-type compressor is described in which lubricants and cooling fluids are conducted principally through conduits maintained almost entirely within the gearcase and pressure housings of the compressor. In this arrangement according to the invention, ... | 07/28/1998 |
| 5687814 | Assembly for applying one or more materials to a rail An assembly for applying one or more materials to the rails of a railroad track includes a mounting bracket for mounting the assembly to a vehicle adapted to travel on the rails. A connecting arm is coupled to the mounting bracket, and at least one nozzle... | 11/18/1997 |
