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. 05, 2012
Filed:
Jul. 11, 2008
Keisuke Kishita, Toyota, JP;
Hisashi Sakai, Seto, JP;
Keisuke Kishita, Toyota, JP;
Hisashi Sakai, Seto, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Abstract
Gas is supplied from positive pressure (10Pa or more) to an analyzer of high vacuum (10Pa or less) precisely and stably, while keeping conditions constant and replicating the conditions, and performing switching to a desired gas within a short time. According to a gas introducing device and a method, a plurality of types of gases are synthesized in a mixing chamber, the synthesized gas is introduced and is decompressed by a decompression pump to a pressure ranging from 0.1 Pa to 0.1 MPa, and the decompressed gas is introduced to a gas analyzer through a switching operation using a gas switching valve.