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:
Apr. 19, 1988
Filed:
May. 22, 1987
Applicant:
Inventor:
Robert F Gaiser, Stevensville, MI (US);
Assignee:
Allied Corporation, Morristown, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417 36 ; 417 44 ; 417307 ;
Abstract
A hydraulic pump assembly includes a housing having a bore, and a sump piston, a pump piston and an accumulator piston received coaxially within the bore. The pistons respectively define a sump chamber, a pump chamber, and an accumulator chamber within the housing. A motor reciprocates the pump piston to pump fluid fron the sump chamber into the accumulator chamber.