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:
Jan. 11, 2011
Filed:
May. 17, 2007
Toru Kouda, Tokyo, JP;
Toru Kouda, Tokyo, JP;
Nitto Kohki Co., Ltd., Tokyo, JP;
Abstract
A pipe coupling member has a tubular body () and a valve unit () slidably set in the through-hole of the tubular body. The valve unit has a valve holder () and a rotary valve member () supported by the valve holder so as to be rotatable about a pivot axis perpendicular to the axis of the through-hole. The valve holder comprises a valve seat portion (-) and a valve support portion (-) that are separately disposed in series in the axial direction or the direction of the axis of the though hole. The valve support portion rotatably supports the rotary valve member. When the valve holder moves axially in the through-hole, the rotary valve member is rotated by a cam mechanism () and displaced between a closed rotational position and an open rotational position while its spherical outer peripheral surface sliding relative to an annular valve seat of the valve seat portion. When in the closed rotational position, the rotary valve member sealingly engages all around the annular valve seat to close the fluid path. A spring member () urges the valve support portion to urge the valve holder toward the closed rotational position. When the coupling member is decoupled, the rotary valve member therein is surely placed in the closed rotational position.