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:
Jul. 05, 1994
Filed:
Dec. 18, 1992
Applicant:
Inventor:
Kurt E Pietzsch, Wiesbaden-Sonnenberg, DE;
Assignee:
Dorr-Oliver Incorporated, Milford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210402 ; 210450 ; 210499 ; 209270 ;
Abstract
The present invention relates to a screening device with a screening cartridge that consists of a cartridge frame and a flexible web of filter material that is stretched in the frame. In order to create a screening device in which both the screening cartridges as a whole as well as the filter cloth or the webs of filter material alone can be replaced very quickly and simply, the present invention proposes that the frame incorporate a groove that runs parallel to its periphery, the web of filter material being installed in the groove and held in place by means of a cord of elastic rubber material that is installed in the groove.