Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Changqu Ru0
Date of Patent
October 19, 2010
0Patent Application Number
119496920
Date Filed
December 3, 2007
0Patent Primary Examiner
Patent abstract
An air pressure sensor (2) for a vehicle tire warning system includes a tubular housing (21) defining a chamber (218), an air pressure actuating device seated in the chamber and being moveable back and forth in the chamber in response to air pressure change in the vehicle tire, and a switch device to electrically connect a high air pressure warning circuit or a low air pressure warning circuit under the drive of the air pressure actuating device. The chamber of the tubular housing is communicated to the atmosphere via a connecting pipe (29).
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