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. 09, 1993
Filed:
May. 07, 1990
Applicant:
Inventor:
Ekkehard Weber, Essen, DE;
Assignee:
Metallgesellschaft Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
55522 ; 55525 ; 55529 ;
Abstract
A filter element is disclosed which serves to separate dusts from gases or air and consists of metals, alloys or plastics. The element is thin-walled and sheetlike, has a wall thickness of 0.05 to 2 mm and has a large number of regularly arranged holes, which have any of various shapes and sizes and have a non-circular cross-section and a hydraulic diameter of 0.01 to 1 mm. In that filter element the area which is occupied by the holes is 3 to 25% of the front surface area of the filter element.