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. 01, 1976
Filed:
Jun. 18, 1975
William C Eddy, Columbus, OH (US);
Aspro, Incorporated, West Port, CT (US);
Abstract
An air pressure-controlled electrical switch responsive to a change of pressure either above or below a predetermined desired pressure in a vehicle tire, to actuate a magnetically activated system for signaling such tire pressure change. The switch has piston means subject to one end to air pressure in a tire. The piston means is movable from an intermediate position where it normally is maintained by spring pressure and an opposed force imparted by the predetermined desired internal tire pressure which act i opposition on the piston means. The switch is actuated by movement of the piston means in one direction or the other from the intermediate position. The switch is normally closed when the piston means is in the intermediate position. The switch opens when the piston moves in one direction or the other from the intermediate position upon increase or reduction of the tire pressure from the predetermined desired value. The switch is connected electrically with a magnetically activated electronic signaling system.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile