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:
Feb. 08, 1977
Filed:
May. 30, 1975
Applicant:
Inventors:
Assignee:
Nissan Motor Co., Ltd., , JA;
Primary Examiner:
Int. Cl.
CPC ...
F02M / ;
U.S. Cl.
CPC ...
1231 / ;
Abstract
A control apparatus for a vacuum operated device comprising a first flexible diaphragm responsive to a vacuum input, a second flexible diaphragm responsive to a vacuum output present in a vacuum chamber, a control valve associated with said second flexible diaphragm for controlling the vacuum output in said chamber, and a control arm connected between said first and second diaphragms and rotatable about a fulcrum, the movement of said first flexible diaphragm being transmitted through said control arm to said second flexible diaphragm, whereby said control valve is actuated to control the vacuum output in said vacuum chamber.