Gas separation – With means securing or retaining separating media – Unit or cohesive sheet-like media in flow line or frame
Patent
1983-10-19
1987-03-24
Lacey, David L.
Gas separation
With means securing or retaining separating media
Unit or cohesive sheet-like media in flow line or frame
55499, 55501, 55521, 55302, 2104931, 2104935, B01D 4602
Patent
active
046522859
ABSTRACT:
A filter apparatus includes a filter element. The filter element is formed of a sheet of gas-porous filter material which has been folded into accordian pleats. Alternate pleat-folds are of tight, near knife-edge definition, and arcuate form definition. Hence, all folds on one side of the accordian-folded material are of the knife-edge form, and all folds on the other side are of the arcuate. The pleated material is turned into a cylindrical conformation, with the arcuate folds confronting the central axis of the cylinder, and the tight, knife-edge folds outwardly directed. An adhesive-backed band circumscribes the cylinder to hold the accordian-folded material in such form. Ends caps, one with a central aperture formed therein, are fixed to the ends of the cylinder. The latter is then positioned and secured under a venturi section or pipe. The venturi section or pipe, in any cross-section thereof, is of rectilinear shape.
REFERENCES:
patent: 2663660 (1953-12-01), Layte
patent: 3417551 (1968-12-01), Bonell
patent: 4075106 (1978-02-01), Yamazaki
patent: 4277260 (1981-07-01), Browning
patent: 4289510 (1981-09-01), Herndon, Jr.
patent: 4322231 (1982-03-01), Hilzendeger et al.
patent: 4402830 (1983-09-01), Pall
Lacey David L.
Murphy Bernard J.
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