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. 29, 2005
Filed:
Jun. 05, 2000
Tadahiro Ohmi, Aoba-ku, Sendai-shi Miyagi 980-0813, JP;
Kouji Nishino, Osaka, JP;
Nobukazu Ikeda, Osaka, JP;
Michio Yamaji, Osaka, JP;
Ryousuke Dohi, Osaka, JP;
Eiji Ideta, Osaka, JP;
Takashi Hirose, Osaka, JP;
Tadahiro Ohmi, Aoba-ku, Sendai-shi Miyagi 980-0813, JP;
Kouji Nishino, Osaka, JP;
Nobukazu Ikeda, Osaka, JP;
Michio Yamaji, Osaka, JP;
Ryousuke Dohi, Osaka, JP;
Eiji Ideta, Osaka, JP;
Takashi Hirose, Osaka, JP;
Fujikin Incorporated, Osaka, JP;
Other;
Abstract
A valve with an integral orifice for use in gas feeding equipment provided with a pressure-type flow volume control device to be employed for manufacturing of semi-conductors and chemical goods. The valve with an integral orifice has the excellent flow rate control characteristics by improving the processing accuracy of the orifice and preventing the distortion of the orifice at the time of assembling. The orifice is formed in a stainless steel made orifice disc. The metal-made orifice disc with the orifice formed by separate processing and the synthetic-resin-made valve seat body are removably assembled, wherein the orifice disc and the synthetic resin made valve seat body are fixed airtight to the valve main body by pressing the valve seat body via a metal inner disc.