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:
Jun. 15, 1982
Filed:
Dec. 05, 1979
Robert S Migrin, Dearborn, MI (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
A device (10) for filling a pneumatic tire and sensing the air pressure therein has a check valve (20) disposed within a valve stem (126b) and a pressure sensing switch which is temperature compensated to adjust for air pressure changes within the tire due to changes in ambient temperature. Substantially perfect compensation can be achieved, within a limited range of operation, whereby the set point pressure versus temperature characteristic will track with the related tire pressure versus temperature characteristic. A sealed capsule (110) is assembled and pressurized prior to installation within the device. A manual set point calibration feature is provided. The switch can be employed independently of, as well as in conjunction with, the check valve.