US PATENT SUBCLASS 96 / 298
.~.~ Foam

Current as of: June, 1999
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96 /   HD   GAS SEPARATION: APPARATUS

243  DF  WITH GAS AND LIQUID CONTACT APPARATUS {16}
290  DF  .~ Particulate media, shaped packing elements (e.g., Raschig rings, Berl saddles, etc.), or porous media for gas and liquid contact {9}
298.~.~ Foam

DEFINITION

Classification: 96/298

Foam:

(under subclass 290) Apparatus wherein the contact means has a rigid or semi-rigid cellular structure (e.g., sponge rubber, etc.).