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:
Jun. 15, 2004
Filed:
Oct. 23, 2002
Ikuo Kanzaka, Tsukuba-gun, JP;
Toyonobu Sakurai, Tsukuba-gun, JP;
SMC Corporation, Tokyo, JP;
Abstract
To constitute a poppet valve with a heater by providing a heater which heats a valve member at a fixed position inside valve casing without attaching the heater to the valve member, a rod or the like which is a movable member as necessary. In a valve casing having main ports , a flow path which connects these main ports , a valve seat which is provided inside the flow path , a valve member which opens/closes the valve seat , and a rod which is coupled to the valve member , a cylindrical heat transfer body is disposed at a fixed position therein so as to surround the rod , and the heat transfer body is caused to house a first heater therein, so that a poppet valve is constituted such that the valve member comes in contact with the heat transfer body at a time of opening of the valve member