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:
Nov. 22, 2005
Filed:
Jun. 14, 2004
Applicants:
Satoru Watanabe, Atsugi, JP;
Hajime Hosoya, Atsugi, JP;
Inventors:
Satoru Watanabe, Atsugi, JP;
Hajime Hosoya, Atsugi, JP;
Assignee:
Hitachi, Ltd., Tokyo-to, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01M003/04 ;
U.S. Cl.
CPC ...
Abstract
In a fuel vapor purge system, an occurrence of leakage in a diagnosis zone is diagnosed, based on data indicating a pressure rise characteristic in the diagnosis zone for when the diagnosis zone is pressurized, and data indicating a pressure drop characteristic in the diagnosis zone after the pressurization of the diagnosis zone is stopped.
Watanabe, Satoru. (2005). Leakage diagnosis apparatus for fuel vapor purge system and method thereof (U.S. Patent No. 6966214). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6966214
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