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:
Jul. 10, 1984
Filed:
Sep. 29, 1982
Michael J McClain, Dayton, OH (US);
General Motors Corporation, Detroit, MI (US);
Abstract
This disclosure relates to a vacuum pump assembly which is adapted to be operated by the pulsating exhaust gases of an internal combustion engine. The pump assembly includes a reciprocable pump means and an actuating means including a reciprocable actuating member in communication with the exhaust gases and drivingly connected to the pump means to reciprocate the same. The actuating means includes a first housing member and a second spring steel housing member which together with the reciprocable actuating member define an air spring for effecting movement of the actuating member through one of its strokes and which together serve to position and biasingly retain the pump means in assembled relation with the actuating means.