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| Number | Title | Issue Date |
| 7288038 | Bicycle shift control apparatus with preferential shifting A shift control apparatus is provided for a bicycle that has a front transmission and a rear transmission, wherein each transmission has a plurality of gear steps. The apparatus comprises a travel condition sensing unit and a control unit that operates one of the fr... | 10/30/2007 |
| 7207912 | Bicycle shift control apparatus that prevents undesirable chain angles A shift control apparatus is provided for a bicycle having a plurality of front sprockets and a plurality of rear sprockets, wherein a front derailleur shifts a chain among the plurality of front sprockets and a rear derailleur shifts the chain among the plurality o... | 04/24/2007 |
| 6988739 | Electronically servo-assisted bicycle gearshift and related method A method for electronically servo-assisting a bicycle gearshift to allow compensation for misalignments between the chain of a bicycle gearshift and one or more sprockets of the gearshift, the method including the steps of: driving an actuator of a bicycle gearshift... | 01/24/2006 |
| 6931958 | Apparatus for controlling first and second bicycle transmissions A transmission control unit that generates transmission commands for controlling the operation of the first transmission and the second transmission. The transmission control unit includes an inhibiting unit for inhibiting a second operation of the first transmissio... | 08/23/2005 |
| 6682087 | Bicycle computer control arrangement and method A control system for an automatic shifting bicycle transmission comprises a control unit that communicates with a memory location. The memory location stores a plurality of shift tables. The control system uses the information in the shift tables to shift... | 01/27/2004 |
| 6106420 | Continuously variable transmission A continuously variable transmission and a drive train having a continuously variable transmission. The transmission is provided with a drive pulley and a driven pulley, each having at least one axially displaceable disc in order to be able to pinch an en... | 08/22/2000 |
| 5971877 | Variable transmission A power transmission system used in connection with a vehicle power wheel of a bicycle or other vehicle which has a fixed axle and which utilizes a rotating chain sprocket engaging an endless chain for receiving an input torque and transmitting an output ... | 10/26/1999 |
| 5700212 | System for powering rotating accessories of an internal combustion engine A system for powering various rotating vehicle accessories such as an alternator, a power steering pump, and an air-conditioning compressor from both a water pump and an engine's crankshaft. At relatively low engine crankshaft speeds, the accessories are ... | 12/23/1997 |
| 5569104 | Electronic transmission control for human powered vehicle An electro-mechanical system for shifting gears on a multi-gear bicycle or other human-powered vehicle includes a closed loop derailleur position control system using circuitry for measuring derailleur position. Shifting gears is accomplished automaticall... | 10/29/1996 |
| 5483137 | Control device A control device for controlling at least one adjustment member, in particular an electrical chain transfer of a bicycle, is proposed. The control device comprises a signal transmitter which is disposed at a location distant from the at least one adjustme... | 01/09/1996 |
| 5356348 | Electronic transmission control system for a bicycle or the like An electro-mechanical system for shifting gears on a multi-gear bicycle or other human-powered vehicle includes a closed loop derailleur position control system using circuitry for measuring derailleur position. Shifting gears is accomplished automaticall... | 10/18/1994 |
| 5213548 | Gear shifting system for derailleur equipped bicycle A gear shifting system for use on a derailleur equipped bicycle having automatic and manual modes of operation. A microcontroller is mounted to the bicycle frame. Sensors are also mounted to the frame to allow the microcontroller to determine the most eff... | 05/25/1993 |
| 4950208 | Variable ratio power transmission A variable ratio power transmission comprising a variator and a geared drive operable in parallel along respective loading paths which unite at at least one gearset. In a first embodiment, the variator is rewindable between its ratio extremities of operat... | 08/21/1990 |
| 4793208 | Crank-gear for bicycle or similar locomotion vehicle This crank-gear includes cranks centered on a first axis and respectively mounted on shafts journalled into one another in the bicycle crank-gear case. Each shaft bears a guide cooperating with sliders which are fixed to rotate with the sprocket plates ac... | 12/27/1988 |
| 4561532 | Torsional vibration reducing connection between an internal combustion engine and a transmission In an arrangement embracing an internal combustion engine and transmission, intended in particular for use in motor vehicles, the crankshaft is split on the side of the flywheel (6) facing the engine and the crankshaft sections are interconnected via a to... | 12/31/1985 |
| 4505690 | Transmission drive with cyclic speed variations and uses thereof in compaction systems using dual wire-mesh belts Transmission systems in which a driven sprocket is driven by way of a chain by a driving sprocket which is driven by drive means at a constant speed of rotation, are provided with oscillating or reciprocating idler sprockets for superimposing on the const... | 03/19/1985 |
| 4490127 | Electrically operated transmission gear system for bicycles An electrically operated transmission gear system for a bicycle includes a plurality of transmission gears selectively drivable by an endless chain trained around a pedal-driven crank gear, a reversible motor, a takeup reel drivable thereby, and a wire co... | 12/25/1984 |
| 4309043 | Drive system for bicycles and other apparatus An input-output force correlated drive system for driving any driven device such as the rear wheel of a bicycle, a flywheel, or the like comprising: input force applying apparatus for transmitting input force to and causing operation of the drive system; ... | 01/05/1982 |
| 4281845 | Drive system for bicycles and other apparatus An input-output force correlated drive system for driving a driven device such as the rear wheel of a bicycle or the like comprising: input force applying apparatus for transmitting input force to and causing operation of the drive system; rotatable outpu... | 08/04/1981 |
| 4027358 | Variable speed drive system for carding machine A variable speed drive system for a carding machine employs a variable pitch pulley assembly that rotates the feed cylinder and doffer cylinder at a constant slow speed as the sliver is made up to the coiler can, and after a predetermined time lapse the s... | 06/07/1977 |
| 4026482 | Yarn or thread spooling machine To prevent undesired winding patterns on a yarn package being spooled, in which the package is in engagement with a drive drum and a yarn traverse guide is provided to traverse the yarn, a drive is in engagement with the drive drum which includes a drive ... | 05/31/1977 |
| 4010700 | Program controlled power transmission An apparatus for selectively delivering incremental linear motion to a reciprocably mounted tool of a machine, for example, the shifting needle bar of a carpet tufting machine, includes means for intermittently delivering rotary power to a set of opposite... | 03/08/1977 |
