Famous Patents
British merchant Peter Durand invented the tin can in 1810.
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 |
| 7070526 | Accessory drive for driving a balance shaft An engine accessory drive that has a primary drive driveable by a crankshaft of the engine is disclosed. The accessory drive includes a rotational member mounted on a drive shaft and driveable by the primary drive, the drive shaft having an axis of rotation offset f... | 07/04/2006 |
| 7028570 | Transmission A transmission for a working machine including a drive transmission mechanism and a working transmission mechanism operated by swinging a shift lever is provided. The drive transmission mechanism has a key-sliding transmission mechanism axially mounted on a drive sh... | 04/18/2006 |
| 6883395 | Gearbox shift system A transmission shift system for idler wheels comprising at least one actuating device that actuates a respective sliding sleeve non-rotatably connected with a main shaft in order to bring the sliding sleeve to positive fit with an idler wheel to be shifted. It is pr... | 04/26/2005 |
| 6520041 | Three parallel shaft type automatic transmission A driven gear G3b for a forward second gear G3 which is obtained by a hydraulic clutch C3 on a second input shaft 5 is disposed contiguous with a driven gear G4b for a first gear G4. A spacer collar 9 is provided on an output shaft 6 so as to be positione... | 02/18/2003 |
| 6389919 | Compact gearbox A motor vehicle gear box which includes at least two parallel longitudinal shafts and at least two gear assemblies including an idler of the first shaft geared to a stationary pinion of the second shaft. Coaxial rings are provided for jaw clutching the id... | 05/21/2002 |
| 5832607 | Method of making a transmission shaft An elongated shaft (124) for a compound transmission (110) and a method for producing same is provided. The shaft is finish machined from a work piece (200) comprising three segments (204, 206, 208) joined at friction-welded joints (210, 212).... | 11/10/1998 |
| 5802915 | Transmission shifting mechanism with ball ramp actuator A transmission shifting system for axially displacing a jaw clutch having a plurality of axially and/or radially beveled teeth for engagement with a plurality of engagement cavities formed in a mainshaft gear where a ball ramp actuator or a cam ramp mecha... | 09/08/1998 |
| 5460060 | Transmission shifting mechanism with spring loaded ball screw A transmission shifting system for axially displacing a shift fork in response to an electrical signal using a ball ramp actuator to load a spring disposed between the ball ramp actuator and the shift fork where an electrical coil is energized to induce a... | 10/24/1995 |
| 5335562 | Multi-speed rear wheel drive transmission with reduced in-neutral gear rattle A multi-speed rear wheel drive transmission having synchronizers and a plurality of gears rotatable on the input shaft provides for the elimination of neutral roll-over noise and optimization of common reduced size synchronizers. Gear face widths are also... | 08/09/1994 |
| 5226339 | Two-speed transmission for use with electric powered vehicle A manual two-speed automotive transmission adapted to being driven by an electric motor. The transmission includes an input shaft assembly driven by the motor via its armature, a flywheel and a clutch, an input gear assembly axially aligned with and separ... | 07/13/1993 |
| 5184522 | Gearbox for motor vehicle A mechanical stepped gearbox comprises a number of gear wheel pairs (25-34) which interact with one another and are arranged on an input shaft (19), an output shaft (22), and a first side shaft (24). The gear wheel pairs can be selectively coupled in orde... | 02/09/1993 |
| 5182959 | Anti-roll device for motor vehicles An anti-roll device including a gear fixed on a drive shaft and a gear fixed on a driven shaft, a pinion engaged on a rod, a number of gradually narrowing notches formed in the pinion, a roller and a spring disposed in each of the notches, the rollers bei... | 02/02/1993 |
| 5054591 | Transmission input section control A control (68) for controlling the input section (12) of a manually shifted compound synchronized transmission (10) of the type comprising the splitter type input section (12) connected in series with a manually shifted synchronized multi-speed main trans... | 10/08/1991 |
| 5033323 | Gear rattle damper for countershaft transmissions A manual transmission (14') having a counter-shaft assembly (50) with a torsion damping mechanism (34) disposed therein to mitigate in-gear rattle of transmission gears. The countershaft assembly is mounted for rotation in a transmission housing (36). Ass... | 07/23/1991 |
| 4873882 | Manual transmission and gear rattle damper therefor A manual transmission (11) is provided of the type including an input shaft (15) including an input gear (19), an output shaft (23), and a countershaft including a head gear (44). The counter shaft includes drive gears (41, 42, and (43) while the output s... | 10/17/1989 |
| 4848176 | Multispeed reversing transmission for agricultural machine A multispeed reversing transmission has a housing, an input shaft rotatable in the housing and adapted to be rotated by a drive, and an output shaft rotatable in the housing adjacent the input shaft and adapted to be connected to a load. At least one reve... | 07/18/1989 |
| 4811615 | Mechanism for eliminating gear rattle in a shiftable transmission A mechanism arranged in combination with a multiple ratio transmission for eliminating gear rattle in the various gear ratios and neutral position of the transmission. Such mechanism includes a gear network that is preloaded with a spring arrangement whic... | 03/14/1989 |
| 4771648 | Change-speed transmission for a motor vehicle A change-speed transmission for a motor vehicle which includes as input shafts a central shaft supported in an intermediate plate of the transmission housing and a hollow shaft supported on the central shaft near the intermediate plate. An output shaft fo... | 09/20/1988 |
| 4713983 | Wide range transmission A transmission, especially for use with small tractors and the like, provides a number of higher speed drives, typically associated with mowing, and a number of extremely slow "creep" speed drives to make said tractor more compatible with snow blower and ... | 12/22/1987 |
| 4710071 | Family of electric drills and two-speed gear box therefor A two-speed gear box for handheld electric drills and the like has the movable parts associated with gear changing on or associated with a lay shaft. Gear changing is preferably effected by moving a pair of dogs, slidably mounted in holes through a lay sh... | 12/01/1987 |
| 4702121 | Multiple speed driving wheel for pedal powered vehicles A thirteen-speed driving wheel which includes a pedal drive shaft on the axis of the wheel, pedal crank arms, and vehicle interface fittings on both sides for mounting in pedal powered vehicles to replace the chain and derailleur system used in convention... | 10/27/1987 |
| 4676115 | Semi-automatic transmission A semi-automatic mechanical change gear transmission system (11) including a manually operated non-synchronized mechanical change gear transmission (12), a plurality of two-position sensors (278, 280, 282, 284, 286 and 290) cooperating with sensor ramps (... | 06/30/1987 |
| 4674346 | Transmission with reverse and fifth speed synchronizer A rotatable reverse gear is supported on a counter shaft. A member rotates and stops as an output shaft rotates and stops respectively. A device matches the rotational speed of the reverse gear to the rotational speed of the member when a transmission is ... | 06/23/1987 |
| 4656882 | Incrementally variable single countershaft transmission By making the ratios of the gear pairs in a conventional single countershaft transmissions a particularly defined sequence, and mounting the gear elements that are not affixed to the countershaft so that, that of the first gear pair is free to rotate on a... | 04/14/1987 |
| 4602519 | Two speed lightweight racing transmission This invention relates generally to the field of automobile transmissions, and is specifically directed to the method of modifying a standard multi-speed transmission to obtain a lightweight two speed racing transmission, having an improved power to weigh... | 07/29/1986 |
| 4580838 | Hinge fittings for adjustable seats A hinge fitting for an adjustable seat has a single rotatable handle by ms of which the back rest can be tilted and the height of the seat portion adjusted. The handle is connected to a shaft which can be selectively coupled to one of two eccentrics moun... | 04/08/1986 |
| 4532823 | Concentric shift rail mechanism Transmission shift rail assembly has a single shift rod slidably received within an outer concentric tubular member. A first-second (1-2) speed fork is supported on the tubular member for movement therewith. A third-fourth (3-4) speed fork is slidably sup... | 08/06/1985 |
| 4515031 | Chain driven reverse gear for a manual transmission A fifth forward speed pinion is mounted by a bearing on the end of a countershaft that provides a space into which the bearing is fitted. A roller bearing mounted in the transmission casing supports the fifth speed pinion at the opposite end from that of ... | 05/07/1985 |
| 4493223 | Gear shifting speed change apparatus for a rotary electric tool A gear shifting speed change apparatus for a rotary electric tool such as a drill having an electric motor driving a first pair of unequal diameter pinion gears which are in continuous driving engagement with a second pair of pinion gears. The gears of se... | 01/15/1985 |
| 4449416 | Transmission control system A four speed, constant mesh transmission includes an input and an output shaft with four pairs of driver and driven gears respectively spaced on the two shafts. A pair of gear couplings are slidably disposed on the output shaft and splined for rotation th... | 05/22/1984 |
| 4432212 | Hermetic turbo-refrigerator apparatus In a turbo-refrigerator apparatus provided with a compressor in the form of a turbocompressor, a speed increasing gear system capable of switching from one speed increase ratio to another at least in two stages is located between the turbocompressor and a... | 02/21/1984 |
| 4399717 | Change-speed transmission for wheeled vehicles To selectively provide multi-speed two-wheel drive, multi-speed four-wheel drive and low-speed high-torque four-wheel drive, a change-speed gearing for a motor vehicle includes a rear output shaft coaxial with a front output shaft, a clutch hub fixed to t... | 08/23/1983 |
| 4388838 | Multiple countershaft simple transmission A multiple substantially identical countershaft (16, 16A), simple change gear transmission (10) having two-piece (20, 20A, 22, 22A) countershafts is provided. The use of two-piece countershafts allows the countershafts to be supported by three bearings (7... | 06/21/1983 |
| 4319500 | Hydro-mechanical change speed mechanism A hydro-mechanical change speed mechanism of the type useful in road sweeping vehicles and the like in which the vehicle is required to travel from place to place at normal road speed but also requires the ability to travel at a relatively reduced speed w... | 03/16/1982 |
| 4302984 | Roller bearing assembly A roller bearing assembly including a surface of a shaft serving as an inner race for rolling bodies, the surface having a diameter smaller than the outer diameter of a gear formed integrally with the shaft, a cylindrical outer race of a larger inner diam... | 12/01/1981 |
| 4297906 | Gear box A gear box having five forward speeds having an input shaft a lay shaft and a main shaft, the arrangement of the gear box being such that under drive, the input and main shafts are thrust towards one another.... | 11/03/1981 |
| 4291587 | Multistage speed change gear system In a multistage speed change gear system including a plurality of gears selectively interconnecting an input shaft and an output shaft located parallel to one another, the gears disposed concentric with the input shaft are supported by ball-and-roller bea... | 09/29/1981 |
| 4287791 | Power transmission unit for automotive vehicles A power transmission unit for automotive vehicles includes a change-speed mechanism, a final drive gearing and a differential gear unit assembled within a casing, the change-speed mechanism having an input shaft drivingly connected to an engine by a frict... | 09/08/1981 |
| 4287781 | Transmission with double friction clutch Transmission with double friction clutch, especially transmission for agricultural and/or vehicles for the construction industry, with two gear shifting groups, each one of which can be shifted by means of an associated clutch, with the groups being shift... | 09/08/1981 |
| 4279178 | Overdrive gear arrangement A power transfer case for a four wheel drive land cruiser is altered to provide overdrive capability. A main drive gear is journaled for rotation about a main drive shaft driven by the vehicle transmission system. The main drive gear includes an axially e... | 07/21/1981 |
