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. 26, 1980
Filed:
Nov. 22, 1978
Applicant:
Inventor:
David W Rogers, Rochester, NY (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
200 815 ; 200 / ; 200 / ; 200 / ;
Abstract
A vacuum actuated switch has a pair of snap action contacts which are actuated in response to the operation of two vacuum motors. One vacuum motor controls the opening and closing of the contacts in a first predetermined range of vacuum. The other vacuum motor extends the range of operation to a second and larger predetermined range of vacuum wherein one limit of the second range is the same as the first range.