Patent ID: 7328609
Filing Date: 2008-02-12
Classification: B60C

Abstract:
1. A wireless tire pressure sensing system comprising: a tire valve body adapted for sealing engagement with a tire and for air flow communication with the interior cavity defined by the tire; a valve pin mounted within the tire valve body, the valve pin being adapted for sealing engagement with the tire valve body when a preselected force is applied to the valve pin; a compression element mounted within the tire valve body, the compression element being in contact with the valve pin to urge the valve pin into sealing engagement with the valve body to maintain a pressure within the interior cavity of the tire; at least one enclosed cavity pressure sensing device mounted within the valve body for generating an output electrical pressure signal that corresponds to the pressure within the interior cavity of the tire, the pressure sensing device being connected to the valve pin to provide the output electrical pressure signal thereto, the pressure sensing device including