US PATENT SUBCLASS 53 / 376.3
.~ Package or receptacle having closure flap, e.g., carton flap, box lid, etc.

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

285  DF  CLOSING PACKAGES AND FILLED RECEPTACLES {7}
376.3.~ Package or receptacle having closure flap, e.g., carton flap, box lid, etc. {6}
376.4  DF  .~.~> Multiple closure flaps {4}
377.4  DF  .~.~> With means to apply adhesive
377.5  DF  .~.~> Tucked inside cover
377.6  DF  .~.~> Attached flap
377.7  DF  .~.~> With means to heat or cool flap {1}
378.3  DF  .~.~> With means to advance package during closing

DEFINITION

Classification: 53/376.3

Package or receptacle having closure flap, e.g., carton flap, box lid, etc.:

(under subclass 285) Apparatus in which the enclosure of the contents is completed by displacing a portion of the cover that projects therefrom which is either integral with the cover or is a distinct member that is attached to the cover.

(1) Note. Closing the flap of an envelope is included in this subclass.

(2) Note. Closing an egg carton with a single flap is included herein.

(3) Note. A "flap" may pivot about an axis or may pivot about a loosely defined axis. A distinct lid pivotally attached to a cover is considered to be a "flap".

SEE OR SEARCH THIS CLASS, SUBCLASS:

284.3, for apparatus which fills an envelope and closes it by displacing a flap.

287+, for apparatus which completes the enclosure of the contents by securing a separate closure member to another cover member.

376.4+, for closing an egg carton by engagement with multiple flaps of the carton. 377.5, for closing an egg carton by tucking a closure flap inside the cover.

484, for a method of closing a preformed, freestanding, rigid or semi-rigid container.

SEE OR SEARCH CLASS

156, Adhesive Bonding and Miscellaneous Chemical Manufacture,

441.5+, for apparatus for moistening and sealing an envelope.