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:
Dec. 19, 2000

Filed:

Mar. 29, 1999
Applicant:
Inventors:

Michio Yamaji, Osaka, JP;

Tsutomu Shinohara, Osaka, JP;

Kosuke Yokoyama, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
285 24 ; 2851241 ; 285328 ; 285379 ; 285906 ; 285 26 ;
Abstract

Each of coupling members 5, 12 is formed with a retainer accommodating recessed portion 45, 46 in an butting end face thereof, the recessed portion 45, 46 being formed on a bottom face thereof with a gasket holding annular ridge 47, 48 having an annular projection 47a, 48a. A retainer 42 comprises a retainer body 43 holding the outer periphery of a gasket 41 and attached to the outer periphery of the annular ridge 47 of one of the coupling members, 5, and a guide ring portion 44 for guiding a peripheral surface of the recessed portion 46 of the other coupling member 12 when the two coupling members 5, 12 are butted against each other.


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