Liquid purification or separation – Filter – Receptacle and modified spacing surface or support for...
Patent
1999-05-11
2000-12-26
Simmons, David A.
Liquid purification or separation
Filter
Receptacle and modified spacing surface or support for...
210232, 210473, 55DIG5, 55DIG31, B01D 3530
Patent
active
061644579
ABSTRACT:
A filter cartridge having a flexurally rigid frame with a filter element inserted therein is formed of a frame composed of a blank in a single piece, and is folded inward forming a double-walled box profile.
REFERENCES:
patent: 3793692 (1974-02-01), Tate et al.
patent: 3992173 (1976-11-01), Wharton et al.
patent: 4323379 (1982-04-01), Shearin
patent: 5273564 (1993-12-01), Hill
patent: 5399180 (1995-03-01), Kopp
patent: 5693108 (1997-12-01), Roome
Firma Carl Freudenberg
Hoey Betsey Morrison
Simmons David A.
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