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. 03, 2009
Filed:
Sep. 13, 2006
Anil Kohli, Midlothian, VA (US);
Herman Hans Forsten, Williamsburg, VA (US);
Kurt Hans Wyss, Chavannes De Borgis, CH;
Anil Kohli, Midlothian, VA (US);
Herman Hans Forsten, Williamsburg, VA (US);
Kurt Hans Wyss, Chavannes De Borgis, CH;
E.I. du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
This invention relates to a bag filter having a tubular section, one closed end and one open end, the tubular section having a nonwoven felt comprising an intimate fiber blend of 50 to 80 parts by weight polyphenylene sulfide fiber and 20 to 50 parts by weight acrylic fiber, based on the total weight of polyphenylene sulfide and acrylic fibers in the felt, wherein the acrylic fiber has an equal or lower denier per filament than the polyphenylene sulfide fiber.