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:
Mar. 21, 1978
Filed:
Sep. 16, 1976
Applicant:
Inventors:
Joachim Richter, Dusseldorf, DT;
Kurt Huber, Weinheim an der Bergstrasse, DT;
Rolf Schneider, Weinheim an der Bergstrasse, DT;
Peter Rutsch, Abtsteinach, DT;
Assignee:
Firma Carl Freudenberg, Weinheim an der Bergstrasse, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
55379 ; 55381 ; 55483 ; 55484 ; 55500 ;
Abstract
Across the gas flow path in a duct such as for air conditioning there is placed a composite filter set comprising a plurality of filter elements and means joining said elements, each of said filter elements comprising a plurality of filter pockets and a frame holding said pockets at their open ends, and said joining means connecting the frames of adjacent filter elements in a manner to form a gas-tight seal therebetween so that flowing gas can advance only by passage through one of said filter pockets.