US PATENT SUBCLASS 493 / 170
.~.~.~.~ Flowable plunger or reaction member

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}
162  DF  .~.~ Folding {7}
167  DF  .~.~.~ By plunger {6}
170.~.~.~.~ Flowable plunger or reaction member

DEFINITION

Classification: 493/170

Flowable plunger or reaction member:

(under subclass 167) Method or apparatus (a) wherein the male forming member is adapted to yieldably change shape during the bending operation; or, (b) including a backing member against which the male forming member is adapted to force the work for bending, which backing member is adapted to yieldably change shape during the bending operation.