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:
Aug. 05, 2008
Filed:
Dec. 12, 2005
Applicant:
Sung Mu Choi, Seongnam-si, KR;
Inventor:
Sung Mu Choi, Seongnam-si, KR;
Assignee:
Hyundai Motor Company, Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M 33/02 (2006.01); B01D 53/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A pipe for adsorbing fuel evaporation gas in automobiles. An aluminum pipe portion is etched with acid or base so as to increase its surface area and improve its coating properties. The pipe is subjected to a thermal treatment to further improve its coating properties due to creation of an oxidation layer through such etching process, and then is coated at the surface thereof with zeolite slurry with improved adhesion, thereby effectively adsorbing the evaporation gas in terms of performance, endurance and layout.