Gas separation – Two or more separators – Plies or layers of different characteristics or orientation
Patent
1976-09-27
1977-09-13
Lutter, Frank W.
Gas separation
Two or more separators
Plies or layers of different characteristics or orientation
55274, 55492, 55528, 210508, B01D 4602
Patent
active
040479145
ABSTRACT:
A self-supporting, self-gasketing, multi-stage, variable density glass fiber sleeve filter is disclosed and includes a reusable internal wire frame with a composite, low velocity fluid entry filter member on one side of the frame and a fluid egress member on the other side of the frame. The fluid entry filter member is made of two or more layers of medium to long filament puffed glass fiber that differ in thickness and density. The entry and egress members are stitched along longitudinal edge portions so as to form an open ended sleeve that can be slid on and off of the reusable frame. The sleeve is dimensioned such that when it is slid onto the frame both the entry and egress members are tensioned across the frame such that the entry member is outwardly curved with respect to the egress member.
REFERENCES:
patent: 2493257 (1950-01-01), Malme
patent: 3251475 (1966-05-01), Till et al.
patent: 3494113 (1970-02-01), Kinney
patent: 3877909 (1975-04-01), Hansen
Giroward Kermit
Goldberg Arnold
Hansen Elwood F.
Zenzie Henry
Drico Industrial Corporation
Lacey David L.
Lutter Frank W.
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