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:
Jun. 02, 1992

Filed:

Oct. 22, 1990
Applicant:
Inventors:

Yoshitaka Miyakawa, Tochigi, JP;

Kenji Hattori, Tochigi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
138 30 ; 220530 ; 220721 ; 417540 ;
Abstract

A bladder-type accumulator includes a hollow housing having an inner wall surface including a cylindrical surface of a predetermined width, a sheet-like elastically flexible bladder disposed in the hollow housing and dividing an interior space of the hollow housing into a first fluid chamber and a second fluid chamber and a holder which holds a peripheral edge of the bladder against the cylindrical surface of the hollow housing. The peripheral edge of the bladder is shaped such that a relatively large pressure will be applied to at least a partial annular area, having a predetermined width, of the bladder along the peripheral edge thereof.


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