Coating processes – Foraminous product produced – Filter – sponge – or foam
Patent
1974-11-21
1976-07-13
Smith, Ronald H.
Coating processes
Foraminous product produced
Filter, sponge, or foam
427258, 427245, 427289, 427293, 427358, 55158, B05D 500
Patent
active
039695484
ABSTRACT:
A method of forming membrane covered laminate strips of a desired predetermined length from an elongated porous strip wherein said strip is impregnated at spaced predetermined sections with a fluid seal material to preclude fluid flow through such sections and is also coated on each face with a suitable membrane forming coating material to thereby form a laminate strip suitable for reverse osmosis and/or ultrafiltration usage. The resulting laminate strip is provided with a punched hole in a portion of the impregnated section to effect a fluid passageway opening therethrough and, additionally, is cut transversely through an intermediate portion of such section to result in the formation of a multiplicity of predetermined length laminate strips. A plurality of stacked strips, with the punched hole positions staggered in adjacent strips, or groups of strips, provides a simplified form of apparatus with an elongated serpentine flow path therethrough for separating the constituents of a fluid feed stream.
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Anderson Kenneth E.
Hunter Jack A.
Hoatson Jr. James R.
Lawrence Evan K.
Liggett Philip T.
Page II William H.
Smith Ronald H.
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