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:
Nov. 05, 1985
Filed:
Jun. 12, 1984
Applicant:
Inventor:
Tadashi Katoh, Tokyo, JP;
Assignee:
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
200 / ; 200 / ; 73745 ; 340 60 ;
Abstract
An oil pressure monitoring system for an engine having an oil pressure switch comprising a piston located in a port associated with the lubricating system of the engine. The piston is biased into the port by means of a spring. Located between the piston and the wall of the port so as to undergo compression with movement of the piston into the port is an elastic, electrical conductor ring. The ring is placed in series in a warning circuit and is so constructed that compression of the ring resulting from a drop in oil pressure within the lubricating system will affect conductivity through the ring to initiate a warning signal.