US PATENT SUBCLASS 279 / 3
VACUUM
Current as of: June, 1999
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DEFINITION
Classification: 279/3
(under the class definition) Chucks adapted to hold work-pieces, etc., by external atmospheric pressure produced
by exhausting air from the side of the article against the chuck body or holder.
SEE OR SEARCH CLASS
156, Adhesive Bonding and Miscellaneous Chemical Manufacture, particularly
569+, for label pickers in combinations with a laminating operation.
226, Advancing Material of Indeterminate Length,
95, for pneumatic means to cause material being advanced to be urged toward the advancer. 248, Supports,
206.1, for vacuum-type brackets; 362, for vacuum-type hold-downs, 363, for miscellaneous vacuum-type supports.
271, Sheet Feeding or Delivering, appropriate "pneumatic" subclasses.
294, Handling: Hand and Hoist-Line Implements,
64.1+, for vacuum- type devices, and subclass 88, for pneumatic grapples.
451, Abrading,
388, for a vacuum work holder for use with an abrading machine.
