Title: Method of operating a centrifugal filter and a filter centrifuge operating according to this method

Abstract: A method of operating a filter centrifuge or centrifugal filter in which a hydrostatic head is provided at the filtering surface so as to control liquid passage therethrough. The head may promote movement of the liquid through the filter layer or may induce reverse flow of liquid for backwashing or rinsing. In addition, a hydrostatic balance may be provided at this surface through control of the head to limit passage of the liquid through the filter layer. Preferably the head provides a suction augmenting centrifugal filtration.

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Inventors: Hultsch, Gunther (Munich, DT)
Zeppenfeld, Kurt (Munich, DT)
Niedner, Peter (Munich, DT)
Ostermeyer, Peter (Munich, DT)

Application Number: 423579
Filing Date: 1973-12-10
Publication_date: 1976-03-09
Assignee: Krauss-Maffei Aktiengesellschaft (Munich, DT)
Primary Class(es): 210/781 210/369, 210/378, 210/744, 210/808
Other Classes:
US Patent Ref:

1138608	May, 1915	Dibbets	210/378.
1336722	Apr, 1920	Behr	210/78.
2106986	Feb, 1938	Pearce	233/20.
2398967	Apr, 1946	Schutte	210/369.
2862659	Dec, 1958	Nyrop	233/20.
2982417	May, 1961	Durrell	233/1.
3302794	Feb, 1967	Laven	210/378.
3333704	Aug, 1967	McGivern et al.	210/527.
3788470	Jan, 1974	Pelmulder et al.	210/78.
3797663	Mar, 1974	Bourdale	210/78.

Other Refs: 650,716983,690

Jan, 1929	FR
Feb, 1965	UK

Primary Examiner: Hart, Charles N.
Assistant Examiner: Spitzer, Robert H.
Attorney: Ross; Karl F., Dubno; Herbert