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:
May. 12, 2015

Filed:

Aug. 02, 2012
Applicant:

Matsuyoshi Yamashita, Kikugawa, JP;

Inventor:

Matsuyoshi Yamashita, Kikugawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L 55/04 (2006.01); F16L 55/053 (2006.01); F15B 1/10 (2006.01); F15B 20/00 (2006.01);
U.S. Cl.
CPC ...
F16L 55/053 (2013.01); F15B 1/103 (2013.01); F15B 20/007 (2013.01); F15B 2201/3158 (2013.01);
Abstract

An accumulator of the invention is provided with a safety mechanism for an emergency which releases an internal pressure of the housing to the oil port side so as to prevent the housing from being exploded by the internal pressure of the housing which comes to a higher pressure in an emergency, for example, occurrence of fire disaster. The safety mechanism for the emergency has a taper portion in a corner portion between the tubular portion and the end surface portion of the stay. The taper portion is buckled at its root position in the emergency. In the case that the taper portion is buckled, a pressure releasing flow path is formed between the bellows cap or the retained member and the taper portion as well as the bellows cap or the retained member and the end surface portion come away. The stay can be manufactured only by press molding.


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