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:
Feb. 20, 2007
Filed:
Nov. 05, 2002
Laurence H. Hiltzik, Charleston, SC (US);
Edward D. Tolles, Charleston, SC (US);
David R. B. Walker, Charleston, SC (US);
Laurence H. Hiltzik, Charleston, SC (US);
Edward D. Tolles, Charleston, SC (US);
David R. B. Walker, Charleston, SC (US);
MeadWestvaco Corporation, Glen Allen, VA (US);
Abstract
A method for avoidance of attrited carbon dust is disclosed to lead to improved canister performance in emission control. Product attrition by dusting of granular and shaped activated carbons is disclosed to be reduced significantly, or essentially eliminated, by the application of a thin, continuous polymer coating on the granular or shaped activated carbon, without a reduction in adsorption velocity or capacity of the activated carbon when used in automotive emission control canisters.