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:
Jan. 31, 1984
Filed:
Mar. 08, 1982
Applicant:
Inventors:
Akio Mito, Yokohama, JP;
Kentaro Tanaka, Tokyo, JP;
Assignee:
Tokyo Keiki Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
137530 ; 137540 ; 251136 ; 74409 ; 7442 / ;
Abstract
A pressure control valve including a valve, a spring for pressing the valve, and a power input means for compressing the spring further comprises a backup force-generating mechanism for producing and directing a backup force counter to the direction in which the reaction force due to the compression of the spring is exerted on the input means, so as to impart the backup force to the input means.
Mito, Akio. (1984). Pressure control valve (U.S. Patent No. 4428398). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4428398
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile