US PATENT SUBCLASS 134 / 10
.~ Including regeneration, purification, recovery or separation of agent used

Current as of: June, 1999
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134 /   HD   CLEANING AND LIQUID CONTACT WITH SOLIDS

*  DD  PROCESSES {23}
10.~ Including regeneration, purification, recovery or separation of agent used {3}
11  DF  .~.~> Gas or vapor form agent condensed or absorbed on work
12  DF  .~.~> By distilling, or liquefying vapors of, used agent
13  DF  .~.~> By crystallizing, precipitating, or eliminating dissolved solids from used agent

DEFINITION

Classification: 134/10

(under the class definition) Processes in which the treating agent used is subjected to a treatment after use to (1) regenerate the same, (2) purify the same in any way, (3) recover the same, or (4) separate the same from contaminants derived from any source (usually the work treated whether the agent is to be reused or not, and even though the ingredients separated from the work are recovered for use). The removal of the work from the treating agent is not considered as any of such operations.

(1) Note. For combinations not involving the above subject

matter but involving the removal of the agent from, or neutralizing or destroying the agent while on the work, or the removal of the work from the agent, and also for processes involving the admixing of materials to form the desired agent, see coordinate following subclasses.

(2) Note. Where treatment of the work is not involved in the process, the process being directed only to the regeneration, separation, etc., subcombination, the patent is in the class appropriate to the subcombination, see notes (3) and (4) to the main class definition of this class.

SEE OR SEARCH THIS CLASS, SUBCLASS:

26+, for the sequential application of different treating fluids to work.

36, for the admixing of materials to form the treating fluids, including where one or more solid materials are dissolved. 109+, for apparatus having treating fluid purifying, separating, or treating means.