US PATENT SUBCLASS 493 / 193
.~.~.~ Including supplying indeterminate length work

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}
193.~.~.~ Including supplying indeterminate length work {2}
194  DF  .~.~.~.~> And cutting, breaking, tearing, or abrading {1}
198  DF  .~.~.~.~> With means to receive interconnected products

DEFINITION

Classification: 493/193

Including supplying indeterminate length work:

(under subclass 189) Method or apparatus including bringing a workpiece to the heat sealing action wherein the workpiece is a web of such length that the apparatus does not engage (recognize) both the leading end and the trailing end of the workpiece.

(1) Note. A spool or coil of work is considered to be "indeterminate length".

SEE OR SEARCH THIS CLASS, SUBCLASS:

18, for an operation of this class utilizing a first and a second sensor, one of which is a surface contacting sensor for indeterminate length work.

24+, for an operation of this class including use of a sensor responsive to indeterminate length work.

97+, for making a rigid container including assembling a liner permanently secured to wall with other portions of the container from an indeterminate length work supply.

380+, for assembling of this class wherein one workpiece is of indeterminate length. 410+, for refolding or unfolding an indeterminate length workpiece.

434, for folding an indeterminate length workpiece by a roller.