The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 11, 1979
Filed:
Aug. 03, 1978
Applicant:
Inventors:
Assignee:
Toyota Jidosha Kogyo Kabushiki Kaisha, Aichi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60C / ;
U.S. Cl.
CPC ...
731465 ; 340 58 ;
Abstract
An apparatus for sensing air-pressure drop in an automobile tire which comprises an air chamber having an internal air pressure maintained substantially equal to that of a tire under normal conditions and a sensor displaceable in accordance with differences in pressure between the air chamber and the tire. The apparatus is mounted in the inner end of the air valve of the tire, and when the air pressure in the tire drops to a certain level below an initial air pressure setting, the sensor is displaced. Sensor displacement is detected and an appropriate signal is provided to the driver.