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.

Date of Patent:
Aug. 05, 1997

Filed:

Jan. 31, 1996
Applicant:
Inventors:

Tetsuji Hayashi, Gifuken, JP;

Masaharu Minowa, Gifu-ken, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
417313 ; 285368 ;
Abstract

The invention provides an oil hydraulic pump wherein a suction connector can be attached readily to a body using a single bolt. Annular stepped portions direction reversely to each other are formed on a suction port of the body and a flange portion and an insertion projection of the suction connector, respectively, such that, when the insertion projection is inserted into the suction port, the annular stepped portions cooperate to form an annular seal groove. The annular seal groove has a pair of side faces opposing to each other in a direction perpendicular, and extending in parallel, to an axial line of the seal groove and serving as interference acting faces. The resilient force by the interference of the seal fitted in the seal groove acts only upon the interface acting faces. The outer diameter of the insertion projection of the suction connector is a little greater than the inner diameter of the suction port of the body so that, when the insertion projection is compulsorily inserted into the suction port, the suction connector is temporarily fastened to the suction port.


Find Patent Forward Citations

Hayashi, Tetsuji. (1997). Oil hydraulic pump (U.S. Patent No. 5653583). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5653583

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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