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:
Jan. 01, 2013
Filed:
Apr. 14, 2008
Applicants:
Thaddeus J. Ptak, Canal Winchester, OH (US);
Russell Baldinger, Laurelville, OH (US);
Inventors:
Thaddeus J. Ptak, Canal Winchester, OH (US);
Russell Baldinger, Laurelville, OH (US);
Assignee:
Columbus Industries, Inc., Ashville, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D 46/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A composite filter media having excellent dust-releasing properties provided with a layer of netting formed of a low surface free energy material that is hot calendered to the upstream surface of a supporting layer formed of non-woven synthetic fibers. A filtering layer formed of non-woven synthetic fibers is laminated to the downstream surface of the supporting layer. The filtering layer may include an electrostatic charge to increase filter efficiency at a reduced pressure drop across the composite media.