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:
Mar. 19, 2013
Filed:
Feb. 02, 2010
Makoto Takami, Sagamihara, JP;
Makoto Takami, Sagamihara, JP;
Daiwa Can Company, Tokyo, JP;
Abstract
A coupler having a stop valve, in which one of the connectors comprises a cylindrical wall, and a fixed shaft arranged along an axis of the cylindrical wall. A valve seat is arranged around the fixed shaft, and the valve seat is tapered to widen a diameter thereof. A cylindrical valve element is fitted onto the fixed shaft to slide in its axial direction while being pushed by an elastic member, and an inner circumferential face of the valve element is tapered to be congruent with the taper of the valve seat. An engagement portion which is diametrically larger than the leading end portion of the valve element is formed on the outer circumferential face of the valve element at an intermediate portion. Another connector comprises a cylindrical portion. A pushing portion is formed at an end of the cylindrical portion for pushing the valve element at the engagement portion.