US PATENT SUBCLASS 493 / 72
.~.~.~.~.~.~ Continuous advance

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}
56  DF  .~.~ With cutting, breaking, tearing, or abrading {7}
64  DF  .~.~.~ By rotary tool {4}
69  DF  .~.~.~.~ Including folding {2}
71  DF  .~.~.~.~.~ With means to advance work or product {1}
72.~.~.~.~.~.~ Continuous advance

DEFINITION

Classification: 493/72

Continuous advance:

(under subclass 71) Method or apparatus wherein the sheet or web is transferred without stopping toward, through, or away from the location at which it is stressed beyond its elastic limit.