US PATENT SUBCLASS 493 / 129
.~.~.~.~ And heat sealing

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}
52  DF  .~ Rigid container (e.g., box, carton, cap, cup, etc.) {10}
121  DF  .~.~ Securing {6}
128  DF  .~.~.~ With application of adhesive {2}
129.~.~.~.~ And heat sealing

DEFINITION

Classification: 493/129

And heat sealing:

(under subclass 128) Method or apparatus combined with applying thermal energy to raise the thermal level of a surface of a workpiece and thereby causing that surface to be fastened to another surface of a workpiece.

(1) Note. Included herein is both "heat sealing" and heat drying of adhesive.

SEE OR SEARCH THIS CLASS, SUBCLASS:

41, for making a cigarette filter including application of heat to secure the wrapper thereto.

133+, for making a rigid container including heat sealing.

189+, for making a pliable container including heat sealing.

274, for making a tube with coating and heating.

332, for making an article of this class, generally including application of adhesive and heating or drying. 341, for an operation of this class including heat sealing combined with cutting, breaking, tearing, or abrading.

393, for securing a sheet or web workpiece and another workpiece by application of heat.