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. 04, 1994
Filed:
Dec. 24, 1992
Kunihiko Gotoh, Tokyo, JP;
Nitto Kohki Co., Ltd., Tokyo, JP;
Abstract
A coupling comprises a plug attached to the opening of a fluid-filled container. The plug includes an inner cylinder having an opening sealed by film comparatively easily broken by a sharp tip or a blade, and an outer cylinder fitted onto the inner cylinder. A socket is connected to the plug, the socket including a connection to a fluid suction pump. A cutter section has a tip portion shaped like a triangular pyramid to gradually break the film at the opening of the inner plug cylinder when the socket is connected to the plug and also has a trunk portion continuous from the tip portion and shaped like a triangle pole. An inner cylinder is carried by the socket and has a valve synchronous with the sucking operation of said fluid suction pump to open and close a fluid passage in the inner cylinder. A sleeve having a collar rotatably fitted on the inner cylinder and cooperative with a stopper on the outer plug cylinder serves to detachably fix the inner socket cylinder in the plug.