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:
Jun. 18, 1996
Filed:
Aug. 22, 1994
Applicant:
Inventors:
Alex R Hobson, Elkton, MD (US);
David E Mooney, Elkton, MD (US);
Stephen K Stark, Wilmington, DE (US);
Assignee:
W. L. Gore & Associates, Inc., Newark, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ; B01D / ; B01D / ; B32B / ;
U.S. Cl.
CPC ...
428 352 ; 55360 ; 55382 ; 55523 ; 55528 ; 210243 ; 210488 ; 2104935 ; 21049701 ; 210505 ; 210507 ; 428 353 ; 428 359 ; 428 361 ; 428 365 ; 428 3691 ; 428283 ; 428285 ; 4283115 ; 4283166 ; 4283179 ; 428422 ;
Abstract
The present invention is an improved electrically conductive filter media particularly suitable for use in applications where static electricity must be dissipated. The filter media of the present invention comprises a microporous filtration layer having electrically conductive particles embedded therein. When attached to support media, this structure provides exceptional filtration efficiency while assuring a consistent and evenly distributed electrical pathway to ground.