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:
Apr. 18, 2006
Filed:
Nov. 12, 2004
Yoshikazu Ozaki, Tokyo, JP;
Kazutami Ishiwata, Tokyo, JP;
Yoshikazu Ozaki, Tokyo, JP;
Kazutami Ishiwata, Tokyo, JP;
Nitto Kohki Co., Ltd., Tokyo, JP;
Abstract
When a valve body of a coupling member is moving toward a fluid passage closed position, if the valve body becomes inclined, the present invention prevents a sealing ring of the valve body from coming into friction engagement with a conical wall surface of the fluid passage and coming to a stop. The valve body has a valve head provided with a disk-shaped portion, a sealing ring, and a sealing ring support that supports this sealing ring against the valve head; and an angle that a line tangent to a disk-shaped member of the valve head and sealing ring makes with respect to the axis of the valve body is less than or equal to an angle that the conical wall surface, forming the valve seat of the fluid passage, makes with respect to the axis of this fluid passage.