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| Number | Title | Issue Date |
| 7669702 | Transmission box for a wheeled machine particularly of the walking type A transmission box (3) for a wheeled machine includes a motor input shaft (4) driving a drive wheel (8) to actuate at least one drive shaft (9A, 9B) of at least one wheel (2A, 2B) of the machine (1). A clutch m... | 03/02/2010 |
| 7410041 | Automatic traction enhancement for transaxle A bi-directional overrunning clutch comprising an input gear, a pair of hubs, and a roller assembly is provided. Each hub is engaged to an end of one of a pair of shaft segments of a primary drive axle. The roller assembly is disposed within the input gear and about... | 08/12/2008 |
| 7104374 | Power transmission mechanism and electric drive system using the same A power transmission mechanism for a vehicle includes a clutch assembly which includes a two-way clutch and an electromagnetic clutch. The two-way clutch includes three rows of rollers retained by a retainer and disposed between a clutch inner member, which is actua... | 09/12/2006 |
| 7096990 | Double disconnect assembly for multi-axle vehicles An axle disconnect system is provided whereby axles of a tandem or multi-axle vehicle may be easily and quickly engaged and disengaged as required and whereby the ring gear and differential gears remain stationary when the axle is disengaged. In multi-axle vehicles,... | 08/29/2006 |
| 7073648 | Power transmission mechanism A power transmission mechanism for transmitting a driving force from a drive shaft to a driven member of a gear via a one-way clutch is provided. The one-way clutch includes a swinging clutch portion swingably fitted in a clutch portion housing groove formed in a fi... | 07/11/2006 |
| 6826981 | Differential for racing cars A differential for racing cars that travel in a given direction around a closed circular or oval track, including an overrunning clutch arrangement for disengaging from the drive train of the differential an outside wheel shaft that overruns the inside wheel shaft d... | 12/07/2004 |
| 6755763 | Vehicle driveline system with electronically controlled roller clutch assembly A vehicle driveline assembly for an automotive vehicle includes a differential assembly adapted to transfer torque proportionally between first and second axle half-shafts. An over-running clutch is adapted to selectively lock the differential assembly thereby effec... | 06/29/2004 |
| 6722484 | Bi-directional overrunning clutch for a primary drive axle A bi-directional overrunning clutch for transmitting torque to segments of a primary drive axle. The clutch includes an input gear, a clutch housing, and hubs extending out of the housing that attach to the segments. A roll cage is located within the housing and has... | 04/20/2004 |
| 6701804 | Power switching apparatus In a power switching apparatus which switches a power transmitting state from a drive member to left and right two driven members, a circumferential connection surface of the drive member and each of circumferential connection surfaces in both of the driv... | 03/09/2004 |
| 6688444 | Power switching apparatus In a power switching apparatus which moves cages respectively corresponding to left and right two driven members in an axial direction, end surfaces of the respective cages are brought into frictional contact with the driven members so as to rotate togeth... | 02/10/2004 |
| 6659249 | Dual disconnect drive assembly A dual disconnect differential assembly for four-wheel drive (4WD) vehicle is disclosed. This disconnect differential assembly connects/disconnects both output shafts of a differential assembly simultaneously from the respective universal joints of the dr... | 12/09/2003 |
| 6655515 | Modular bi-directional overrunning wheel clutch A modular, self-contained, bi-directional wheel clutch unit selectively attachable and detachable as a unit to and from an axle, the unit including a rotatable wheel-driving hub including a casing portion, a clutch cage disposed in the casing portion and ... | 12/02/2003 |
| 6638195 | Hybrid vehicle system A hybrid vehicle system is provided with an internal combustion engine driving one set of wheels and an electric motor connected to the other wheels via an active clutch system. A power take-off unit is provided for selectively providing driving torque fr... | 10/28/2003 |
| 6622837 | Bi-directional overrunning clutch with automatic backdrive A bi-directional overrunning clutch differential is disclosed for controlling torque transmission between a pinion input shaft and at least one output hub in a vehicle. The differential includes clutch a clutch housing and a roll cage. An electromagnetic ... | 09/23/2003 |
| 6623057 | Uni-directional lockout for railroad car wheelset differential A railroad car wheelset has an axle with one wheel (14A) rigidly attached. This wheel is permitted to rotate by means of journal bearings either on the extreme ends of the axle or inboard of each wheel location. At the other wheel, the axle has smooth sur... | 09/23/2003 |
| 6578931 | Drive wheel roller A drive wheel roller disengages a drive wheel on a device from the drive axle connected directly to a motor, such that the drive wheel can spin freely to move the device when the motor is not on. The axle has an aperture which aligns with an aperture on t... | 06/17/2003 |
| 6575280 | Freewheeling bi-directional clutch A clutch including a pawl having a base portion and an arm portion extending from the base portion; a drive disk adapted to be engaged by the pawl; a friction seal adapted to receive the drive disk; a drive retainer adapted to receive the pawl and a biasi... | 06/10/2003 |
| 6378397 | Differential gearing device A vehicle has a transmission shaft having an annular flange, a threaded end, a recess, and a cotter key inserted in the recess. A differential gearing device receives the transmission shaft. The differential gearing device has a bearing cover, a first one... | 04/30/2002 |
| 6336537 | Wheel end with bi-directional overrunning clutch An integrated wheel end assembly for a vehicle including a wheel hub, a stub shaft, a torque flange and a bi-directional overrunning clutch member is configured such that the clutch automatically acts as a hub lock. The wheel hub is drivingly engaged to a... | 01/08/2002 |
| 6209697 | Small diameter wheel with overrunning clutch assembly A small diameter plastic eel with an overrunning clutch assembly mounted to the hub of the wheel. The wheel designed to be used with self-propelled power equipment operating at less than 1000 RPM. The overrunning clutch includes a clutch housing of genera... | 04/03/2001 |
| 6007126 | Stationary, slow speed and uni-directional lockout for differential action railroad car wheelsets A railroad car wheelset has an axle with one wheel rigidly attached as in conventional railroad practice. This wheel is permitted to rotate by journal bearings. At the other wheel, the axle is provided with a smooth surface and a self-lubricating bearing ... | 12/28/1999 |
| 5971123 | Bi-directional overrunning clutch A bi-directional overrunning clutch is disclosed for controlling torque transmission between a secondary drive shaft and secondary driven shafts. The overrunning clutch includes a pinion input shaft in a differential housing that engages with a clutch hou... | 10/26/1999 |
| 5673756 | Turf aerator drive assembly A turf aerator is provided with a pair of drive wheels rotatably mounted on a drive shaft supported in a main frame of the aerator. Each drive wheel is provided with a radially extending flange and a pawl is pivotally mounted on each flange. A pair of spr... | 10/07/1997 |
| 5542515 | Device for controlling a part-time drive axle for a motor vehicle An automatic spindle engager for a part-time axle of a four-wheel drive motor vehicle includes a wheel spindle that carries a wheel, an outer drive member, inner drive member drivably connected to an engine through an axleshaft, a set of drive rollers and... | 08/06/1996 |
| 5529158 | Hub clutch device A hub clutch capable of automatically engaging and disengaging the front wheel axle to and from the wheel hubs according to the difference in rotational speeds therebetween. It has an inner ring coupled to the front wheel axle, an outer ring coupled to th... | 06/25/1996 |
| 5443148 | Coasting device for a vehicle The present invention is a type of coasting device for a vehicle provided between a half shaft and a drive hub with external threads. A forward running ring and a rearward running ring, each with a truncated conical shaped surface, are mounted on the thre... | 08/22/1995 |
| 5348126 | Multifunctional energy-saving system for vehicles including an automatic clutch unit with both differential and anti-slip capabilities A multifunctional energy-saving system for vehicles is composed of an automatic clutch mechanism (1) and a control mechanism (2). The automatic clutch mechanism mainly comprises a shaft (4) with a regular prismatic section (5), a hub (6) and a synchronous... | 09/20/1994 |
| 5286239 | Rotation transmitting device having differently rotating output shafts A rotation transmitting device having an outer ring formed with a bore, a holder fixedly mounted in the bore and rolling elements mounted in the holder so as to be rollable as the outer ring rotates. A pair of input shafts are provided coaxially with an a... | 02/15/1994 |
| 5274987 | Manual powered lawn mower A manual powered lawn mower comprises a pair of large diameter drive wheels on an axle, two clutch and roller bearing mechanisms on the axle coupling the drive wheels thereto, a gear mechanism coupled to the axle for translating rotation of the drive whee... | 01/04/1994 |
| 5203232 | Rotation transmitting device A rotation transmitting device having an outer ring formed with a bore, a holder fixedly mounted in the bore and rolling elements mounted in the holder so as to be rollable as the outer ring rotates. A pair of input shafts are provided coaxially with an a... | 04/20/1993 |
| 5103690 | Part-time all wheel drive system An all wheel drive system for a motor vehicle is normally set up to operate in a two wheel drive mode except in vehicle operating situations where increased traction is desired. A drive shaft of a drive line is connected to front and rear axles through re... | 04/14/1992 |
| 5048635 | Electrically actuated free wheel hub apparatus An electrically actuated free wheel hub apparatus includes an axle tube, a wheel hub arranged about the axle tube and operated in response to the position of a drive transfer mechanism. An electric motor is disposed in a body fixed to the wheel hub and an... | 09/17/1991 |
| 5044479 | Remote-activated, power shift clutch assembly A clutch assembly for automotive vehicle four-wheel drives either in association with an axle disconnect or wheel hub incorporates a power shift mechanism which can be remotely activated either when the vehicle is static, in motion and during either forwa... | 09/03/1991 |
| 5036939 | Multiple axle drive vehicle with overrunning roller clutch hubs A multiple driven axle vehicle, such as a four-wheel drive recreational vehicle having its front, steerable wheels being optionally driven by providing double acting overrunning clutches in the hubs of the front wheels. A transmission mechanism is provide... | 08/06/1991 |
| 5024307 | Free wheel hub system A free wheel hub system comprises a free wheel hub mechanism disposed between a drive shaft and an axle hub supported by a spindle, an electric motor mounted on a hub body accommodating the free wheel hub mechanism, a brush case mounted on the hub body an... | 06/18/1991 |
| 5022503 | Electrically actuated wheel hub clutch apparatus An electrically actuated wheel hub clutch includes a clutch device. The clutch device alternately engages and disengages a wheel hub relative to an axle shaft. An electric motor actuates the clutch device. An electric circuit delivers electric current to ... | 06/11/1991 |
| 4991680 | Control device of a remote free wheel hub mechanism A control device of a remote free wheel hub mechanism includes a free wheel hub mechanism, an actuator and a control circuit. The control circuit further includes a two-wheel-drive circuit, a four-wheel-drive circuit, a transfer shift position detecting s... | 02/12/1991 |
| 4940123 | Viscous coupling A viscous coupling capable of preventing decrease in torque obtained by the shear force. The viscous coupling includes relatively rotatable first, second, and third rotating members forming an operation chamber in which a viscous fluid is to be confined; ... | 07/10/1990 |
| 4909365 | Freewheeling clutch and implement employing same A bidirectional freewheeling clutch assembly (50) and a self-propelled walk-behind lawn mower (10) including same are disclosed. Lawn mower (10) preferably includes a prime mover (18) which can be selectively coupled to a gear box (34). The output shaft (... | 03/20/1990 |
| 4876918 | High speed differential unit A differential drive unit has separate drive shafts extending from a housing. Respective drive plates for each shaft differentially receive rotational power from the housing as such housing rotates. Respective wedges transfer housing rotational power to t... | 10/31/1989 |
