US PATENT SUBCLASS 493 / 41
.~ With application of heat to secure wrapper


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

39  DF  CIGARETTE FILTER MAKING {5}
41.~ With application of heat to secure wrapper


DEFINITION

Classification: 493/41

With application of heat to secure wrapper:

(under subclass 39) Method or apparatus including supplying thermal energy to the filter to cause a sheet or web encasing

member to be fastened to or about that filter.

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

(2) Note. Included herein is securing filtering components to the paper encasing member.

(3) Note. The "wrapper" or "encasing member" of this subclass may serve to enclose the entire cigarette and hold both the tobacco and the filter or may serve to enclose only the components of the filter or the tobacco. Note that recognition (or engagement) of tobacco or tobaccolike material is excluded from this class.

SEE OR SEARCH THIS CLASS, SUBCLASS:

129, for making a rigid container with application of adhesive and heat sealing.

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.