Composite coalescing filter tube and method of manufacture...

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

B - Operations, Transporting

01

D

182/123, 183/93,

B01D 17/02 (2006.01) B01D 17/04 (2006.01) B01D 39/20 (2006.01) B01D 46/24 (2006.01) D21J 7/00 (2006.01)

Patent

CA 1093977

ABSTRACT OF DISCLOSURE 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, chaneling, pressure collapse and vibration damage which have occurred in past coalescing filters.

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