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.

Date of Patent:
Feb. 05, 2008

Filed:

Feb. 09, 2005
Applicants:

Hideaki Sumi, Utsunomiya, JP;

Hiroshi Machida, Utsunomiya, JP;

Satoshi Hanai, Haga-gun, JP;

Inventors:

Hideaki Sumi, Utsunomiya, JP;

Hiroshi Machida, Utsunomiya, JP;

Satoshi Hanai, Haga-gun, JP;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D 46/46 (2006.01);
U.S. Cl.
CPC ...
Abstract

When a shutoff signal is entered to shut off a fuel gas manufacturing apparatus, it is determined whether a PSA mechanism is in a prescribed shutoff state or not. If the PSA mechanism is judged as not being in the prescribed shutoff state, the fuel gas manufacturing apparatus is continuously operated until the PSA mechanism is brought into the prescribed shutoff state. Then, if the PSA mechanism reaches the prescribed shutoff state, the fuel gas manufacturing apparatus is shut off.


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