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. 27, 2012
Filed:
Aug. 05, 2008
Applicant:
Dale Addison Grove, Iii, Holland, OH (US);
Inventor:
Dale Addison Grove, III, Holland, OH (US);
Assignee:
Johns Manville, Denver, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 46/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Provided is a method of forming a self supporting fibrous nonwoven filter media comprising dispersing glass fibers, crimped polymer fibers, and cellulosic fibers in a fluid dispersion. The dispersion is subjected to a moving forming wire to form a fibrous web. Binder is applied to the web. The web is dried and cured/melted and later pleated in a subsequent operation. Inclusion of crimped polymer fibers in filter media improves dust holding characteristics of the filter media.