US PATENT SUBCLASS 493 / 191
.~.~.~.~ Heating or cooling by direct application of fluid

Current as of: June, 1999
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493 /   HD   MANUFACTURING CONTAINER OR TUBE FROM PAPER; OR OTHER MANUFACTURING FROM A SHEET OR WEB

51  DF  CONTAINER MAKING {2}
186  DF  .~ Pliable container (e.g., bag, envelope, etc.) {9}
189  DF  .~.~ Including heat sealing {9}
190  DF  .~.~.~ And cooling {1}
191.~.~.~.~ Heating or cooling by direct application of fluid

DEFINITION

Classification: 493/191

Heating or cooling by direct application of fluid:

(under subclass 190) Method or apparatus including raising or lowering the thermal level of a surface of the workpiece by a flow of gaseous or liquid material thereagainst.

SEE OR SEARCH THIS CLASS, SUBCLASS:

134, for making a rigid container including securing by heat sealing, by direct application of fluid.

192, for making a pliable container including heat sealing by direct application of fluid.