US PATENT SUBCLASS 208 / 173
.~.~.~ Solids transferring

Current as of: June, 1999
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208 /   HD   MINERAL OILS: PROCESSES AND PRODUCTS

46  DF  CHEMICAL CONVERSION OF HYDROCARBONS {11}
146  DF  .~ Solids contacting and mixing {8}
165  DF  .~.~ Gravitating compact beds {7}
173.~.~.~ Solids transferring {1}
174  DF  .~.~.~.~> By pneumatic lifting {1}

DEFINITION

Classification: 208/173

(under subclass 165) Processes including a specific procedure for transferring solids from one compact gravitating bed zone to another.

(1) Note. Processes which recite broad transferring of solids between zones by name only are not included. Some particular condition or procedure of transferring must be claimed.