Filter element and method of making a filter element

Details Filter element and method of making a filter element Filter element and method of making a filter element

1987-09-03

1989-06-13

Hart, Charles

Gas separation

Two or more separators

Plies or layers of different characteristics or orientation

55498, 55520, 55524, 156 86, B01D 4602

Patent

active

048389056

ABSTRACT:
A filter element comprises a relatively rigid fluid-permeable cylinder (5), around which is provided a body (7) of non-woven fibrous filter material. A jacket (6) of permeable material is positioned around the outer surface of the filter material, and is heat-shrunk onto the filter material in order to hold this under substantially uniform radial compression over the whole of its area.

REFERENCES:
patent: 2396712 (1946-03-01), Luttage et al.
patent: 4017401 (1977-04-01), Holz
patent: 4102785 (1978-07-01), Head et al.
patent: 4564376 (1986-01-01), Billiet
patent: 4576666 (1986-03-01), Harris et al.
patent: 4631098 (1986-12-01), Pithouse et al.
patent: 4661314 (1987-04-01), Levine et al.

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