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. 08, 1983
Filed:
Mar. 03, 1980
Applicant:
Inventors:
Kashmir S Virk, Hopewell Junction, NY (US);
Martin Alperstein, Fishkill, NY (US);
Assignee:
Texaco Inc., White Plains, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
F01N / ; F01N / ;
U.S. Cl.
CPC ...
60274 ; 55DI / ; 60297 ; 60303 ; 60311 ; 422169 ; 422178 ; 422182 ; 422183 ;
Abstract
A system for filtering combustible particulate matter from an exhaust gas stream, and for periodically rejuvenating the filter by thermally incinerating retained particles prior to their reaching the main filter. At least a part of the exhaust gas stream which enters the filter bed is periodically heated in a pretreating chamber. The latter comprises a catalyst coated oxidizing bed into which fuel, and heated air are metered to initiate combustion. The products of said combustion are thereafter combined with the exhaust gas to bring it to a sufficient temperature to incinerate the carried particles.