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. 25, 2005
Filed:
Jul. 17, 2003
Applicants:
Kent Mertz, Clarksville, TN (US);
Beatrix Yvonne Schmitt, Clarksville, TN (US);
Inventors:
Kent Mertz, Clarksville, TN (US);
Beatrix Yvonne Schmitt, Clarksville, TN (US);
Assignee:
Freudenberg Nonwovens Limited Partnership, Durham, NC (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 4610 ; B01D 4652 ;
U.S. Cl.
CPC ...
Abstract
A filter pack is formed of a pleated filter section and a top edge band and a bottom edge band that form a frame. The filter section and the frame are formed of a nonwoven polymer material, preferably a polyester material. The filter section is retained in the frame by an adhesive, preferably also a polyester material. The filter pack provides more filtration media per area, leading to more efficient filtration. The filter pack is fully shreddable and does not require separation into various components for recycling.