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:
Aug. 17, 1993
Filed:
Aug. 04, 1992
Applicant:
Inventors:
Anders Svensson, Trosa, SE;
Sverker Hugert, Trosa, SE;
Assignee:
Camfil AB, Trosa, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
553852 ; 55483 ; 55485 ; 55497 ; 55521 ; 55DI / ;
Abstract
An air filter unit comprising a first sheet of filter material folded into a zig-zag configuration with a generally planar second sheet of fine mesh air penetrable material extending across apexes of the zig-zag fold on one or both sides of the filter. The second sheet includes peripheral portions which are folded up against the lateral edges of the first sheet to facilitate mounting of the filter unit within a frame.