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:
May. 03, 2005
Filed:
Feb. 13, 2003
Takahiro Doi, Tokyo, JP;
Takeya Sasa, Tokyo, JP;
Takahiro Doi, Tokyo, JP;
Takeya Sasa, Tokyo, JP;
Nitto Kohki Co., Ltd., Tokyo, JP;
Abstract
There is disclosed a socket for a pipe coupling, comprising a hollow cylindrical socket body including a plug insertion port, a radially movable locking element to lock a plug in the plug insertion port, and a sleeve attached to the socket body so as to be movable forwards/backwards and can operate the locking element. A valve body including a channel hole and purge hole is fixed in the socket body, and a cylindrical seal member rotatable between a first position and a second position is attached between the socket body and valve body. The seal member opens the channel hole and closes the purge hole in the first position, and vice versa in the second position. The seal member is connected to a sleeve for valve opening/closing operation rotatably attached to the socket body by a connection pin inserted through a circumferential groove in the socket body.