Filter assembly

Details Filter assembly Filter assembly

1979-12-06

1981-07-07

Hart, Charles N.

Liquid purification or separation

With heater or heat exchanger

For filter

210351, 210447, 210450, 425199, 425379R, 285 41, 285 95, 285351, B01D 2708, B01D 2902, B01D 3518, F16L 1700

Patent

active

042773385

ABSTRACT:
A filter assembly for extruded polymer melts is described which comprises a filter having retained between inlet and outlet manifolds with a contact pressure that can be varied. A primary seal device between the manifold and the housing is located in a rabbet in either the housing or the manifold at the contact plane. This seal responds to pressure from the polymer melt flow by deforming and increasing the contact pressure between the manifold and the housing. Thus the greater the pressure at which the melt is extruded, the tighter is the seal.

REFERENCES:
patent: 3038201 (1962-06-01), Harkenrider
patent: 3428340 (1969-02-01), Pelton
patent: 3675934 (1972-07-01), Heston
patent: 3895833 (1975-07-01), Thiessen
"Facet Continuous-Flow Filtration Systems and Process Plug Valves," Bulletin FPD-900.1, Facet Enterprises, Madison Heights, MI, 4/1/79.

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