B - Operations – Transporting – 60 – C
Patent
B - Operations, Transporting
60
C
B60C 23/04 (2006.01) G12B 9/02 (2006.01)
Patent
CA 2270802
A power supply unit is adapted for use with a pressure-sensing device that is mounted on a wheel rim inside an airtight chamber confined by the wheel rim and a pneumatic tire. The power supply unit includes a valve housing, an air valve member, and a battery housing. The valve housing is mounted on the wheel rim with an inner end portion thereof extending into the airtight chamber and with an outer end portion thereof extending outwardly of the wheel rim. The valve housing is provided with a housing conductor for electrical connection with the pressure-sensing device. The air valve member is mounted in the valve housing, and includes a spring-loaded valve stem with a conductive stem body that is connected electrically to the pressure-sensing device, and that is electrically insulated from the housing conductor. The battery housing is mounted on the outer end portion of the valve housing and receives a battery cell therein. The battery housing has first and second battery contacts to interconnect electrically first and second terminals of the battery cell with the housing conductor and the stem body, respectively.
Huang Teng-Yi
Shapiro Cohen
LandOfFree
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