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. 24, 1981
Filed:
Aug. 13, 1979
Applicant:
Inventor:
Willard E Rapp, Griggstown, NJ (US);
Assignee:
Western Electric Co., Inc., New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210791 ; 210D / ; 210 97 ; 210138 ; 210232 ; 210408 ; 210413 ; 366 87 ; 425197 ; 425199 ;
Abstract
A filter assembly for an extrusion apparatus comprises a stationary filter having a flat, hard surface and slidable means having a plurality of apertures for both accumulating filtered debris and cleaning the filter surface when the debris is removed by sliding a clogged slide aperture out of position while replacing it with a clean aperture.