US PATENT SUBCLASS 34 / 85
.~ With apparatus cleaner and/or escaping material collector


Current as of: June, 1999
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34 /   HD   DRYING AND GAS OR VAPOR CONTACT WITH SOLIDS

523  DF  APPARATUS {40}
85.~ With apparatus cleaner and/or escaping material collector


DEFINITION

Classification: 34/85

(under the class definition) Apparatus having either, or both, (1) means to clean the apparatus or some portion thereof, (2) means to collect for removal from the apparatus (with or without a removing means) material escaping from the desired and intended treating path.

(1) Note. Devices for agitating, feeding and/or discharging the material treated are not included. For means to strip material from external drum type driers, and for apparatus provided with stirrers or scrapers see search notes below.

SEE OR SEARCH THIS CLASS, SUBCLASS:

69+, for apparatus within the class definition combined with draining devices.

71, and 95+, for means to separate solids used to dry material undergoing treatment from such material, with or without means to dry such solids and/or return such solids to the machine.

72, and indented subclasses, (particularly subclass 79 and indented subclasses, for means for removing material from the gases or vapors used to treat the solids or from the gases or vapors evolved due to treatment of the solids.

117, 120, for for means to strip material from external drum type driers. 173, 178, and 179+, for apparatus provided with stirrers or scrapers.

SEE OR SEARCH CLASS

165, Heat Exchange,

70, for a heat exchanger with a leakage collector, and subclass 95 for a heat exchanger with cleaning means.

198, Conveyors: Power-Driven,

494+, for conveyor cleaners.

201, Distillation: Processes, Thermolytic,

2, for a carbonizing process directed to cleaning the apparatus.

202, Distillation: Apparatus,

241, for means for cleaning and decarbonizing a retort or still.