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:
Apr. 30, 1991
Filed:
Mar. 02, 1990
Applicant:
Inventor:
Oswald Busse, Aarbergen, DE;
Assignee:
Passavant-Werke AG, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210229 ; 210231 ;
Abstract
The invention relates to filter plates of plate filter presses, particularly for freeing sewage sludge from water. The problem of premature failure of the filter cloth is overcome in that the filter cloth is fastened only at some of the support bosses surrounding the central inlet opening and is laid loose over the other bosses. Excessive bulging of the filter cloth when the cake is thrown off is thereby avoided. The filter cloth may be held by a subsequently fastened boss or by a cap engaging over the boss.