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:
Jul. 04, 2006
Filed:
Aug. 04, 2004
Katsunori Tomita, Aichi, JP;
Kenichi Ito, Aichi, JP;
Koji Miwa, Aichi, JP;
Shingo Morikawa, Aichi, JP;
Yasuhiro Shirai, Aichi, JP;
Masataka Mizutani, Aichi, JP;
Shoichi Nakamura, Aichi, JP;
Hideya Koike, Aichi, JP;
Hidefumi Toyoshi, Aichi, JP;
Atsushi Itoh, Aichi, JP;
Katsunori Tomita, Aichi, JP;
Kenichi Ito, Aichi, JP;
Koji Miwa, Aichi, JP;
Shingo Morikawa, Aichi, JP;
Yasuhiro Shirai, Aichi, JP;
Masataka Mizutani, Aichi, JP;
Shoichi Nakamura, Aichi, JP;
Hideya Koike, Aichi, JP;
Hidefumi Toyoshi, Aichi, JP;
Atsushi Itoh, Aichi, JP;
INAX Corporation, Tokoname, JP;
Abstract
The present invention provides an open/close valve which contributes the stabilization of the operation responsibility. A housing has a water-in port and a water-out port. Furthermore, a piston which is slidably mounted in the housing in an axial direction by means of an external operation of a shaft, and a pressure offset means for offsetting the pressure which the piston receives from water in the water-out port to the other side are provided. The piston is attached to a seat face of the housing by being slided on one side in an axial direction to close the communication between the water-in port and the water-out port, and the piston is detached to the seat face of the housing by being slided on the other side in an axial direction to open the communication between the water-in port and the water-out port. The pressure offset means comprises a pressure offset room which is formed at the other side of the piston, and a passage for communicating one side of the piston with the pressure offset room.