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. 14, 1992
Filed:
Jun. 13, 1991
Applicant:
Inventor:
Kunio Banba, Saitama, JP;
Assignee:
Kabushiki Kaisha Showa Seisakusho, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417 36 ; 417540 ; 60418 ;
Abstract
A hydraulic pump composed of a pump and an accumulator combined therewith has an outer shell divided into an accumulator cylinder of metal and a tank of resin. The accumulator cylinder and said tank have thicker side portions, respectively, which define therein an outlet oil passage and an inlet oil passage, respectively.