Abstract: An electrical actuator for a bicycle rear derailleur making use of a standard wireless remote control (RC) servo unit relying exclusively on highly efficient spur gearing reduction and facilitating highly accurate derailleur positioning thereof through an integral digital magnetic rotary encoder with assembly thereof sealed in a two-piece housing with a lateral extension for an auxiliary anti-backlash spur gear serving to transmit actuation effort thereof to actuation shaft of a rear derailleur.

Abstract: An electrical actuator for a bicycle front derailleur making use of a standard wireless remote control (RC) servo unit relying exclusively on highly efficient spur gearing reduction and facilitating highly accurate derailleur positioning thereof through an integral digital magnetic rotary encoder with assembly thereof sealed in a two-piece housing and serving to transmit actuation effort thereof directly to actuation shaft of a front derailleur.

Abstract: An electrical actuator for a bicycle rear derailleur making use of a standard wireless remote control (RC) servo unit relying exclusively on highly efficient spur gearing reduction and facilitating highly accurate derailleur positioning thereof through an integral digital magnetic rotary encoder with assembly thereof sealed in a two-piece housing with a lateral extension for an auxiliary spur gear serving to transmit actuation effort thereof to actuation shaft of a rear derailleur.

Abstract: An automatic bicycle shifter making use of a global positioning system (GPS) altimeter for sensing road inclination, an accelerometer for sensing bicycle acceleration and a hot wire anemometer for sensing wind load, and through application of classical law of conservation of energy attenuates or appreciate automatic shifting speeds in real time to maintain a rider standard shifting torque. Automatic bicycle shifter is additionally provided with capability to sense, record, and interpret rider automatic shift override commands and further adjust automatic shift criteria to rider preference.

Abstract: An electrical actuator for a bicycle rear derailleur making use of a standard wireless remote control (RC) servo unit relying exclusively on highly efficient spur gearing reduction and facilitating highly accurate derailleur positioning thereof through an integral digital magnetic rotary encoder with assembly thereof sealed in a two-piece housing with a lateral extension for an auxiliary spur gear serving to transmit actuation effort thereof to actuation shaft of a rear derailleur.

Abstract: A force sensor for a seat of a bicycle providing in real time measurements of exerted force by a rider against a bicycle pedals through diminished force exerted thereof by the rider against the bicycle seat and additionally entailing approximate crank angle of the pedals through further analysis as the measured seat force typically consists of an alternating profile where the force is maximum when the pedals are in a horizontal position and minimum while the pedals are vertical.

Abstract: An electrical actuator for a bicycle front derailleur making use of a standard wireless remote control (RC) servo unit relying exclusively on highly efficient spur gearing reduction and facilitating highly accurate derailleur positioning thereof through an integral digital magnetic rotary encoder with assembly thereof sealed in a two-piece housing and serving to transmit actuation effort thereof directly to actuation shaft of a front derailleur.

Abstract: An automatic bicycle shifter making use of a global positioning system (GPS) altimeter for sensing road inclination, an accelerometer for sensing bicycle acceleration and a hot wire anemometer for sensing wind load, and through application of classical law of conservation of energy attenuates or appreciate automatic shifting speeds in real time to maintain a rider standard shifting torque. Automatic bicycle shifter is additionally provided with capability to sense, record, and interpret rider automatic shift override commands and further adjust automatic shift criteria to rider preference.

Abstract: An automatic bicycle shifter making use of a sheathed cable actuator utilizing a pulley arrangement to energize actuation cable thereof with high adaptability to single and double cable arrangement devices and provided with a gearbox employing a worm gearset for positive retention of actuated position and an encoder for accurate and programmable operation.

Abstract: An adaptable bicycle shifter making use of a torque computation algorithm based on the classical law of conservation of energy and employing a global positioning system (GPS) altimeter for sensing a road inclination, an accelerometer for sensing a bicycle acceleration and a hot wire anemometer for sensing a wind load, serving to automatically attenuate or appreciate programmed shifting speeds in real time to maintain rider standard shifting torques thereof. Adaptable bicycle shifter is additionally provided with capability to sense, record, and interpret rider automatic shift override commands and further adjust automatic shift criteria to rider ongoing preference.

Abstract: An adaptable bicycle shifter making use of a torque computation algorithm based on the classical law of conservation of energy and employing a global positioning system (GPS) altimeter for sensing a road inclination, an accelerometer for sensing a bicycle acceleration and a hot wire anemometer for sensing a wind load, serving to automatically attenuate or appreciate programmed shifting speeds in real time to maintain rider standard shifting torques thereof. Adaptable bicycle shifter is additionally provided with capability to sense, record, and interpret rider automatic shift override commands and further adjust automatic shift criteria to rider ongoing preference.

Abstract: An automatic bicycle shifter making use of a sheathed cable actuator utilizing a pulley arrangement to energize actuation cable thereof with high adaptability to single and double cable arrangement devices and provided with a gearbox employing a worm gearset for positive retention of actuated position and an encoder for accurate and programmable operation.

Abstract: A highly adaptable user interface for gearing based bicycle power transmission devices powered by a linear servo actuator slaved to an electronic control system serving to automatically shift into desirable gearing ratios under user predefined shifting criteria adaptable in real time to rider conditioning, comfort level and road conditions thereby alleviating manual shifting tasks and achieving optimal pedal rate and effort settings for the rider. Ability to switch to manual mode augments rider total control of disclosed device.

Abstract: A bicycle electric derailleur making use of a geared electrical motor with armature affixed to an electrical rotary encoder serving to provide derailleur position through direct sensing of position of actuating electrical motor.

Abstract: A bicycle electric derailleur making use of a geared electrical motor located on the predominantly stationary portion of said derailleur assembly thereby alleviating extraneous loads to actuating apparatus due to inherent shocks and vibrations, and additionally offering suitability for implementation in an automatic electronic control system as well as simpler manual apparatuses through reliance on a variety of versatile derailleur position resolving means for superior adaptability.

Abstract: An automatic bicycle drivetrain shifting apparatus comprising a bicycle drive chain derailleur powered by a servo gearmotor slaved to an electronic control system and controlled through a highly adaptable user interface serving to automatically alternate drive chain position between available bicycle drive sprockets under user defined shifting criteria adaptable in real time to rider conditioning, comfort level and road conditions thereby alleviating manual shifting tasks and achieving optimal pedal rate and effort settings for the rider.

Abstract: An automatic bicycle drivetrain shifting apparatus comprising a bicycle drive chain derailleur apparatus powered by a servo gearmotor and controlled through a highly adaptable user interface serving to automatically alternate drive chain position between available bicycle drive sprockets based on user preset and in real time modifiable criteria and additionally making use of critical chain driver apparatus serving to ensure chain motion is always available to satisfy derailleur operation requirements often prevalent during coasting and stopping where the bicycle speed changes while pedaling motion has ceased.

Abstract: A manually controlled chain driver apparatus for a bicycle drive chain derailleur providing necessary forward chain movement for derailleur operation less power transmission to bicycle pedals during stopping and coasting instances when pedaling motion has ceased or is not possible.

Abstract: An automatic bicycle drive train shifting apparatus comprising a bicycle drive chain derailer powered by a servo gearmotor slaved to an electronic control system and controlled through a highly adaptable user interface serving to automatically alternate drive chain position between available bicycle drive sprockets under user defined shifting criteria adaptable in real time to rider conditioning, comfort level and road conditions thereby alleviating manual shifting tasks and achieving optimal pedal rate and effort settings for the rider.

Abstract: A manually controlled chain driver apparatus for a bicycle drive chain derailer providing necessary forward chain movement less power transmission to bicycle pedals for derailer operation during stopping and coasting instances when pedaling motion has ceased or is not possible.