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:
Jun. 07, 1983
Filed:
Sep. 29, 1980
Applicant:
Inventor:
Donald J Verley, Valencia, CA (US);
Assignee:
McCann's Engineering and Manufacturing Company, Los Angeles, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417393 ; 417395 ; 91311 ; 91313 ; 91323 ;
Abstract
A reciprocating fluid pump has a dual piston element and dual diaphragms in fluid communication therewith. Full movement of the dual piston element in either direction of movement causes movement of a pilot valve which simultaneously vents a first working chamber located in the direction of movement of the dual piston element and occasions reciprocating movement of the dual diaphragms, thereby directing a pump power medium to a second working chamber to cause movement of the dual piston element in the opposite direction.