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:
Mar. 23, 1993
Filed:
Apr. 02, 1992
Applicant:
Inventor:
Lloyd R White, Minneapolis, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ; C04B / ;
U.S. Cl.
CPC ...
210504 ; 55523 ; 55527 ; 210490 ; 21050026 ; 210505 ; 210506 ; 210508 ; 2105101 ; 428 345 ; 428282 ; 428368 ; 428408 ; 428902 ; 501 88 ; 501 89 ; 501 90 ; 501 95 ;
Abstract
A ceramic fiber-ceramic composite filter having a support composed of ceramic fibers, preferably texturized, a carbonaceous layer thereover, and a silicon carbide coating over the carbonaceous layer and coated on substantially all of the fibers. A strong, tough, light weight filter is achieved which is especially useful in high temperature gas environments.