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| Number | Title | Issue Date |
| 7713154 | Fixed pitch continuously variable transmission (FPCVT) A Continuously Variable Transmission (CVT) for use in applications where a transmission is desired to change the speed of the motor relative to the speed of the final drive. The CVT has a set of chains or belts that are mounted around a set of pins set in radially c... | 05/11/2010 |
| 7261655 | Variable speed flat belt transmission and variable diameter pulley for use in same A belt drive system employs variable diameter drive and driven pulleys interconnected by a flat belt and operative to vary the rotational speed of the driven pulley as in a variable speed transmission. Each pulley includes an internal fluid pressure chamber and diam... | 08/28/2007 |
| 6955620 | Drive system for an infinitely variable drive transmission An improvement relating to an infinitely variable ratio transmission having a pair of oppositely oriented variable diameter torque input and output pulleys is disclosed wherein the conical surfaces of the pulleys include a multiplicity of axially and circumferential... | 10/18/2005 |
| 6749410 | Peristaltic pump having a variable effective radial length impeller for metering liquid chemicals A flexible apparatus for metering agricultural chemicals in a wet blade chemical distribution system consists of a modular peristaltic pump delivery apparatus (24) having an impeller (38) and a mounting bore (30) in a computer-controlled servome... | 06/15/2004 |
| 6656070 | Cone with torque transmitting members for continuous variable transmissions A cone to which one or several torque transmitting member(s) are attached as to form at least one torque transmitting arc on the surface of the cone. The torque transmitting member(s) will be used for torque transmission between at least one rotational en... | 12/02/2003 |
| 6405571 | Cable drive assembly for motor vehicle A cable drive assembly 102 for a motor vehicle locking system is described. A lock mechanism 104 is mounted on a first carrier 108. The first carrier is connected to a second carrier 110 by a cable, such that turning of an appropriate key in the lock caus... | 06/18/2002 |
| 6332852 | Variable ratio drive system A variable ratio drive system including at least one variable diameter sprocket is described herein. The variable diameter sprocket includes a support and at least three radially movable sprocket portions mounted to the support. A diameter changing mechan... | 12/25/2001 |
| 5772546 | Continuously variable automatic drive A continuously variable automatic drive has a front driving sprocket and a rear driven sprocket. Each of these sprockets has a housing and a plurality of involute-shaped toothed segments, each having a leading end and a trailing free end. The toothed segm... | 06/30/1998 |
| 5637046 | Variable ratio transmission system and clutch mechanism therefor A variable ratio chain-belt transmission for use in a vehicle, includes a pair of variable ratio pulleys having a plurality of pins which are lined in a plurality of circles, a chain-belt engaging with both variable ratio pulleys. Different sized pulleys ... | 06/10/1997 |
| 5104357 | Variable ratio drive system A variable ratio drive mechanism which operates to adjust the path of an endless drive belt in response to a remotely located control input. A plurality of circumferentially spaced sheave segments are respectively mounted in a plurality of radially extend... | 04/14/1992 |
| 4938732 | Continuously variable transmission system having variable diameter pulley assemblies responsive to axially directed forces A continuously variable transmission having a variable diameter pulley assembly. The variable diameter pulley assembly has an array of belt engaging elements arranged in a circular pattern having a diameter variable as a function of the relative rotationa... | 07/03/1990 |
| 4875389 | Chain driven, continuously infinite variable speed transmission system A chain driven and receiving, continuously infinite variable speed transmission system comprising a pair of cones positioned in the same plane with the smaller diameter of each cone in proximity with the larger diameter of the other and encircled by a con... | 10/24/1989 |
| 4874351 | Continuously variable belt-drive transmission A continuously variable belt-drive transmission of the type having spaced apart sheaves each provided with a plurality of sheave segments which may be moved radially inwardly and outwardly. A novel control is provided for selectively moving the segments i... | 10/17/1989 |
| 4810234 | Continuously variable transmission A continuously variable transmission employing a flat belt extending between driving and driven pulley assemblies, each having a circumferential array of radially adjustable belt engaging elements, is disclosed in conjunction with a control system. The ra... | 03/07/1989 |
| 4768996 | Continuously variable transmission A continuously variable transmission of the type employing a flat belt extending between driving and driven pulley assemblies, each having a circumferential array of radially adjustable belt engaging elements, is disclosed in conjunction with a self-energ... | 09/06/1988 |
| 4714452 | Oriented flat belt continuously variable transmission using pulleys with guideways In a continuously variable belt transmission system utilizing a drive pulley and a driven pulley having logarithmic spiral guideways in the pulley disks, the balance actuator torque is reduced significantly by having the logarithmic spiral guideways conne... | 12/22/1987 |
| 4655730 | Automatic gear box The invention relates to a drive device having stepless torque adjustment, especially for cycles. The drive device comprises a drive shaft (13), a first adjusting disc (1) arranged coaxially with the drive shaft (13), into which first adjusting disc (1) a... | 04/07/1987 |
| 4591351 | Variable ratio pulleys for flat belt transmission system In a variable radius pulley drive system wherein a flat drive belt engages the central shanks of drive elements supported by the side pulley sheaves and the radial location of the drive elements is determined by the intersection of logarithmic spiral groo... | 05/27/1986 |
| 4530676 | Adjustable-drive-ratio multiple-step belt transmission Adjustable-drive-ratio multiple-step transmission wherein a multiple-v belt passes around driving and driven pulleys each including movable sheave elements individually shiftable in discrete steps along respective trackways away from or toward the pulley ... | 07/23/1985 |
| 4529394 | Transmission ratio variators A transmission ratio varying arrangement involves establishing transmission between a drive shaft and a driven shaft by two orbital systems, one for each shaft, and including gear wheels which move concentric to the respective shafts thereof. One orbital ... | 07/16/1985 |
| 4501574 | Transmission ratio variators A transmission ratio variator establishes transmission between a drive shaft and a driven shaft between two orbital systems comprising gear wheels which move concentrically to their respective shafts and where the radii of each orbit are simultaneously va... | 02/26/1985 |
| 4498351 | Continuously variable ratio transmission This invention provides novel transmission means for interconnecting a rotary output shaft of drive means to a rotary input shaft of means to be driven by the drive means. Basically, the novel transmission means of the present invention comprises gear mea... | 02/12/1985 |
| 4409862 | Variable speed rotary power transmission A variable speed rotary power transmission comprises a planetary gear train having a cage with at least one planet gear meshed between a ring gear and a sun gear for orbital motion about an axis common to the ring gear and the sun gear. A driven output is... | 10/18/1983 |
| 4342559 | Drive system A load-responsive variable diameter pulley in a drive system using a driving pulley and a driven pulley functionally connected by a belt. The basic pulley assembly includes two spaced apart parallel sideplates concentric to a hub. One plate is fixed to th... | 08/03/1982 |
| 4295836 | Flat belt transmission with rotary actuator and integrated control system A continuously variable flat belt pulley transmission, using integral rotary actuators, is described together with controls to vary the transmission speed ratio upon demand and simultaneously operate an internal combustion engine or electric motor on a de... | 10/20/1981 |
| 4167124 | Variable-speed chain drive unit A drive unit for varying the transmission ratio between two parallel rotatable shafts is provided with a disk mounted on each shaft for rotation therewith, the disks being formed with a plurality of radial grooves in which respective bearings are provided... | 09/11/1979 |
| 4068539 | Variable-ratio transmission A transmission capable of providing an infinitely variable drive ratio between a predesigned minimum and maximum ratio, either automatically or manually variable.... | 01/17/1978 |
| 4024772 | Variable speed flat belt transmission The subject transmission includes a pair of pulleys mounted for rotation on spaced parallel axes, each pulley having axially spaced sets of oppositely inclined guideways for adjustably receiving drive elements which engage the internal face of an endless ... | 05/24/1977 |
