US PATENT SUBCLASS 493 / 197
.~.~.~.~.~.~.~ Including work advance during heat sealing

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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  DF  .~.~.~ Including supplying indeterminate length work {2}
194  DF  .~.~.~.~ And cutting, breaking, tearing, or abrading {1}
195  DF  .~.~.~.~.~ At separate station from heat sealing {1}
196  DF  .~.~.~.~.~.~ With means to advance work or product {1}
197.~.~.~.~.~.~.~ Including work advance during heat sealing

DEFINITION

Classification: 493/197

Including work advance during heat sealing:

(under subclass 196) Method or apparatus including transferring the work progressively through the location at which the thermal level is raised, at the time of such raising of the thermal level of the workpiece surface.