Patent ID: 8723661
Filing Date: 2014-05-13
Classification: B60C

Abstract:
1. A tire pressure monitoring sensor moveable inside a tire or a tire inner tube, comprising: a rotatable housing having a curved outer surface portion, the housing configured to hold components of a tire pressure monitoring sensor, the components including: a pressure sensing/transmitting unit comprising: an antenna electrically coupled to the pressure sensing/transmitting unit; at least one battery electrically coupled to the pressure sensing/transmitting unit for providing electrical power to the pressure sensing/transmitting unit; wherein the components of the tire pressure monitoring sensor are assembled within the housing such that during rotation of a tire or tire inner tube inside which the tire pressure monitoring sensor is positioned, movement of the tire pressure monitoring sensor within the tire or the tire inner tube is minimized and number of collisions between the tire pressure monitoring sensor and the tire or the tire inner tube is also minimized; and wherein, when the tire pressure monitoring sensor is used in a slow rotation speed tire, the components of the tire pressure monitoring sensor within the housing are configured such that center of gravity of the combined housing and components is along geometric center of the housing such that during slow rotation of the tire or the tire inner tube, the tire pressure monitoring sensor independently self-rotates within the tire or the tire inner tube interior at approximately same spatial location.