Liquid purification or separation – Plural distinct separators – Filters
Patent
1989-11-02
1991-09-03
Dawson, Robert A.
Liquid purification or separation
Plural distinct separators
Filters
210450, 210486, 210488, B01D 2939
Patent
active
050451995
ABSTRACT:
This invention relates to a filtering apparatus for filtering liquids, in particular beverages. To attain an effective seal between two superimposed filter supports and the associated filter bodies in such a filtering apparatus, the upper side of an underlying filter support has formed therein a groove which opens upwards and has a substantially trapezoidal cross section and whose interior groove wall is substantially parallel to the inner wall of the apron of the filter support respectively lying thereabove, and the profiled seal has, on the whole, a substantially rectangular cross section, with the profiled seal portion supported on the respectively lower filter support being adapted to the cross section of the groove.
REFERENCES:
patent: 2104473 (1938-01-01), Watson
patent: 2813632 (1957-11-01), Muller
patent: 3450267 (1969-06-01), Jarvis
patent: 3831763 (1974-08-01), Breysse et al.
patent: 3854904 (1974-12-01), Jamet
patent: 4647415 (1987-03-01), Schaft
patent: 4655919 (1987-04-01), Schaft
patent: 4925570 (1990-05-01), Schaft
Fast Udo
Handtmann Thomas
Kurz Wolfgang
Schafft Helmut
Westermeier Peter
Albert Handtmann Armaturenfabrik GmbH & Co. KG
Dawson Robert A.
EAS Patent- und Knowhow-Verwertungs GmbH
Millard Wanda L.
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