US PATENT SUBCLASS 53 / 376.4
.~.~ Multiple closure flaps

Current as of: June, 1999
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53 /   HD   PACKAGE MAKING

285  DF  CLOSING PACKAGES AND FILLED RECEPTACLES {7}
376.3  DF  .~ Package or receptacle having closure flap, e.g., carton flap, box lid, etc. {6}
376.4.~.~ Multiple closure flaps {4}
376.5  DF  .~.~.~> With means to apply adhesive
376.6  DF  .~.~.~> With means to heat or cool flap {2}
377.2  DF  .~.~.~> With means to advance package during closing
377.3  DF  .~.~.~> With package stationary during closing

DEFINITION

Classification: 53/376.4

Multiple closure flaps:

(under subclass 376.3) Apparatus wherein a package or filled receptacle having, prior to folding, a plurality of slot separated flaps which package is then closed by folding the flaps inwardly upon one another.

SEE OR SEARCH THIS CLASS, SUBCLASS:

47, for corresponding methods.

207+, for wrapping machines which shape a notched or corner slit cover blank about the contents as well as close the package thus formed.

491, for a method of closing a preformed, freestanding, rigid or semi-rigid container by folding multiple preformed flaps.

564+, for apparatus by which a carton is set up and filled.