Patent ID: 9404819
Filing Date: 2016-08-02
CPC Classification: A61B,B62J,G01L

Claim Text:
1. A bicycle power meter module comprising: an elongate base member having a first end with an aperture, a second end adapted to be secured to a bicycle frame portion adjacent a rear bicycle axle, and a compressible central portion; a strain gauge sensor assembly mounted on said compressible central portion, said strain gauge sensor assembly having first and second stretch sensors each including a first layer having a variable resistance element mounted thereon and a second layer for supporting said first layer, the variable resistance elements of said first and second stretch sensors being ohmically interconnected to present a total resistance value representative of cyclist force; a mounting nut firmly secured to said first end of said base member, said nut having a centrally located internally threaded through-hole in registration with said aperture so that said nut can be threaded onto an associated externally threaded bicycle axle to secure said base member to the bicycle axle at said first end; and a signal processing unit mounted on said base member and electrically coupled to said strain gauge sensor assembly for converting said total resistance value and bicycle velocity signals from an associated bicycle speedometer to cyclist power signals.