Composite coalescing filter tube and method of manufacture there

Details Composite coalescing filter tube and method of manufacture there Composite coalescing filter tube and method of manufacture there

1975-07-07

1978-03-14

Bashore, S. Leon

Paper making and fiber liberation

Processes and products

Mineral fiber

162219, 162221, 162224, 264 87, 264305, D21F 1100

Patent

active

040789659

ABSTRACT:
The specification discloses a novel composite coalescing filter tube and the method of making the same. In contrast to previous coalescing filters, which had layers of filter material sandwiched between relatively rigid support members, the present invention provides for a completely unitary coalescing filter tube wherein the various layers of the filter are successively vacuum formed one over the other on a forming fixture which is submerged in an appropriate glass fiber slurry mix, with the various layers being air dried, epoxy dipped, and cured as needed for the particular application. Since, during the vacuum forming process, glass fibers from one layer will interlock with glass fibers from the previously formed layer, a completely unitary coalescing filter tube is formed, preventing the problems of filter layer separation, channeling, pressure collapse and vibration damage which have occurred in past coalescing filters.

REFERENCES:
patent: 2146749 (1939-02-01), Knight
patent: 2383066 (1945-08-01), McDermott
patent: 2395301 (1946-02-01), Sloan
patent: 3238056 (1966-03-01), Pall et al.
patent: 3399516 (1968-09-01), Hough et al.
patent: 3450632 (1969-06-01), Olson et al.
patent: 3460680 (1970-07-01), Dominick
patent: 3710562 (1973-01-01), McKenzie
patent: 3972694 (1976-08-01), Head

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