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:
Oct. 03, 2006
Filed:
Apr. 14, 2005
Applicant:
Sam R. Reddy, West Bloomfield, MI (US);
Inventor:
Sam R. Reddy, West Bloomfield, MI (US);
Assignee:
GM Global Technology Operations, Inc., Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M 55/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
Method and system of purging evaporative emission control canister using heated purge air comprises a scrubber containing an activated carbon fiber material or carbon monolith selected to adsorb butane and/or pentane isomer vapors in low concentrations in air passing through the scrubber and to desorb the adsorbed butane and/or pentane isomers when purged with exhaust heated purge air. A method for reducing bleed emission to almost zero mg per day uses exhaust heated air purging of the scrubber.