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:
Aug. 05, 1986
Filed:
Aug. 03, 1981
Hans Muller, Erlenbach, CH;
Dr. Muller AG, Mannedorf, CH;
Abstract
A filter is provided with a number of elongated filter elements disposed in a pressure vessel. Each element has a filter web extending about the length of the element and fastened at the top and the bottom. Rigid support means are provided inside the filter element in order to support the web. They extend about the length of the element and preferably extend over a part only of the circumference of the element so as to permit the web to perform a limited movement outwards and inwards in radial direction. During the operation the web is pressed against the support means by the inflowing liquid permitting a filter cake to build up at its outside while upon a backwash operation the web moves outwardly away from said support means thus loosening the filter cake. Inlet and outlet means are provided on the pressure vessel. This permits a build-up and easy removal of the filter cake without the use of a bellows type filter web.