US PATENT SUBCLASS 366 / 139
IN VACUUM CHAMBER
Current as of: June, 1999
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DEFINITION
Classification: 366/139
IN VACUUM CHAMBER:
(under the class definition) Apparatus and corresponding methods including means for producing a partial vacuum in the mixing chamber during agitation.
(1) Note. Substantially the entire contents of the mixing chamber must be under reduced (subatmospheric) pressure. Where the contents are not and localized vacuum or suction is created to feed material into the chamber, placement is as indicated in the search notes below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
163.1+, for a device provided with suction means for feeding material into the mixing chamber.
