Pleated filter element with controlled expansibility and frame t

Details Pleated filter element with controlled expansibility and frame t Pleated filter element with controlled expansibility and frame t

1982-11-16

1985-04-23

Fisher, Richard V.

Liquid purification or separation

Filter

Within flow line or flow line connected close casing

210450, 210451, 2104935, 210495, 55497, 55502, 55524, 156202, B01D 2706, B01D 4652

Patent

active

045128910

ABSTRACT:
A filter assembly (10) includes a frame (10 and 12) and means (10, 32, 34, 36, 38, 44, 48, and 50) releasably retaining a replaceable pleated filter element (14) therein. The edges of the pleats (68) of the filter element (14) are folded over diagonal fold lines (70) and tucked between adjacent pleats in a manner which provides control expansibility and substantially even pleat spacing upon expansion after storage in collapsed condition.

REFERENCES:
patent: 2880860 (1959-04-01), Gardiner, Jr. et al.
patent: 2907408 (1959-10-01), Engle et al.
patent: 2980208 (1961-04-01), Neumann
patent: 3218784 (1965-11-01), Greiner
patent: 3410062 (1968-11-01), Hart
patent: 3418794 (1968-12-01), Roberts
patent: 3471023 (1969-10-01), Rosaen
patent: 3636683 (1972-01-01), Francis et al.
patent: 3640396 (1972-02-01), Brownell
patent: 3712033 (1973-01-01), Gronholz
patent: 3717256 (1973-02-01), Parrott et al.
patent: 3779389 (1973-12-01), Fant
patent: 4151095 (1979-04-01), Wright

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