Pleated fluid filter

Details Pleated fluid filter Pleated fluid filter

1978-06-26

1979-04-24

Lutter, Frank W.

Liquid purification or separation

Filter

Within flow line or flow line connected close casing

55497, 55498, 55502, 55510, 55511, 55521, 55529, 55DIG5, 156218, 156227, 210487, 210493R, 210493FR, B01D 2706, B01D 4602, B01D 4652, B29D 2310

Patent

active

041510950

ABSTRACT:
A sheet of porous filter material folded into accordion pleats, the pleats having opposite edges folded over on diagonal fold lines to close the opposite edges of alternate pleats. The pleated and folded sheet is selectively disposed in flat panel form or formed into a tube with the pleats extending axially of the tube. When the filter is in its tubular form, the folded pleat ends are disposed at the exterior of the tube.

REFERENCES:
patent: 1880552 (1932-10-01), Ward
patent: 2409078 (1946-10-01), Swann
patent: 2731108 (1956-01-01), Kennedy
patent: 3279616 (1966-10-01), Bourdale
patent: 3386232 (1968-06-01), Gaines, Jr.
patent: 3640396 (1972-02-01), Brownell
patent: 3681898 (1972-08-01), Hopkins et al.
patent: 3686837 (1972-08-01), Hopkins et al.
patent: 3859068 (1975-01-01), McLaren et al.

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