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:
Oct. 21, 2014
Filed:
Aug. 11, 2008
Hiroyuki Kitagawa, Tokyo, JP;
Hiroyuki Kitagawa, Tokyo, JP;
Nitto Kohki Co., Ltd., Tokyo, JP;
Abstract
A pipe coupling apparatus for simultaneously connecting and locking together pipe couplings comprising a plurality of sockets and plugs. The pipe coupling apparatus includes a socket-side unit having a plurality of sockets and a plug-side unit having a plurality of plugs. Each socket is provided with locking elements, and each plug is provided with an engagement groove. When the plug is inserted into the socket, the locking elements enter the engagement groove. A sleeve is provided displaceably between a locking completion position where it holds the locking elements from coming out of the engagement groove to lock the socket and the plug to each other and a retracted position separated from the locking completion position. A locking confirmation plate is displaceable from a locking unconfirmed position to a locking confirmed position when all the sleeves are at the locking completion position, thereby allowing confirmation of the completion of locking.