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:
Aug. 10, 1976
Filed:
May. 20, 1975
Applicant:
Inventors:
Kunihiko Sugihara, Yokohama, JA;
Yasuo Nakajima, Yokosuka, JA;
Yoshimasa Hayashi, Yokohama, JA;
Shin-ichi Nagumo, Yokohama, JA;
Assignee:
Nissan Motor Co., Ltd., Yokohama, JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M / ;
U.S. Cl.
CPC ...
1231 / ;
Abstract
A valve responsive to both venturi vacuum and intake manifold vacuum operates a recirculation valve by means of vacuum amplification.
Sugihara, Kunihiko. (1976). Exhaust gas recirculation system (U.S. Patent No. 3973535). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3973535
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile