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:
Jun. 03, 1986
Filed:
Mar. 04, 1985
Heinz O Schumacher, D-2050 Hamburg 80, DE;
Other;
Abstract
The filtering vessel (1) holding cartridge filter (16) is connected to a receiver (3) through a quick-opening valve. There is generated an underpressure in (3) for separating the filter cake built up on the cartridges, said underpressure being lower than the evaporation pressure of the liquid contained in the filter cake. Accordingly, there is built up an overpressure in the filtering vessel (1). An immediate opening of the valve (2) and a proportionate temperature in system (1) and (2) results in a spontaneous bursting off of the filter cake from the cartridge surface, which bursting off, in consequence of the pressure compensation between (1) and (3) still will be increased by means of the liquid contained in the filter cake evaporating in the course of a flash procedure. The relatively dry filter cake is collected in the receiver (3). The next filtration process can be started after closing valve (2).