Envelopes – wrappers – and paperboard boxes – Paperboard box – Lifting or suspending element
Reexamination Certificate
2000-03-24
2001-08-28
Bui, Luan K. (Department: 3728)
Envelopes, wrappers, and paperboard boxes
Paperboard box
Lifting or suspending element
C206S806000, C229S117180
Reexamination Certificate
active
06279820
ABSTRACT:
CROSS-REFERENCE TO RELATED APPLICATIONS
The present application claims priority of French Patent Application No. 9905736, filed May 3, 1999, titled “Cardboard Pack For Display Stand,” by Michael J. Collinet.
FIELD OF THE INVENTION
The present invention relates to the packaging field and in particular to cardboard packs intended to be hooked to display stands. More specifically, the pack can be in cardboard or in another easily biodegradable or recyclable material, and have a display card having a hooking aperture, and in which the fixing of the case to the display card is improved; the manufacturing operations, the introduction of objects to be packaged in the case and the closing of the case being able to be done by simple mechanisms.
BACKGROUND OF THE INVENTION
The documents DE-A-43 22 555 and U.S. Pat. No. 4,106,615 describe cases produced from a single cardboard blank. The cases have tabs intended for hooking them to display stands. When the objects to be distributed are relatively small, for example photographic roll films, the packs are small and can easily fit in a pocket. To prevent the disappearance of articles inside a store, it has been proposed, as described in the document U.S. Pat. No. 3,480,138, to stick small cases onto cardboard cards of a larger size. Then, it has been proposed to use a single blank for the case and for the display card. The Patent DE-A-42 22 488 proposes a pack wherein the display card is larger than the case and has an opening equal to that of the formed case. In addition, the part making the case is linked to the part making the card by a spacer, thus enabling the case to be put inside the opening provided in the display card. This embodiment is difficult to produce automatically as the case is introduced in an opening after the formation of the case and its filling. Thus, in French Patent 2 743 542 a pack has been proposed that can be produced from a single cardboard blank wherein the case is stuck on the display card, which does not have such disadvantages.
Nevertheless, it has been noted that the use of this type of cardboard pack on display cards has a disadvantage. Pulling relatively gently on the case causes the case and the card to become unstuck and gives relatively easy access to the product contained in the case.
For ecology needs, it is advantageous to be able to produce such a pack from cardboard wherein the fixing of the case to the display card is improved. It is clear that the operations of case forming, case filling and case closing must be easy to do using conventional machines.
SUMMARY OF THE INVENTION
The pack for the display stand according to the invention is obtained by means of a single blank having a first part intended to form the case, a second part intended to form a display card whose area is greater than the straight forward projection of the case on this card, and possibly a third part intended to distance the case from the edges of the hooking tab. The case, once formed, comprises a body defining at least one opening and closing flaps intended to close this opening. The display card comprises at least one fixing flap extending beyond the periphery of the display card and intended to be fixed to at least one of the closing flaps so as to increase the link between the case and the display card when the case formed on the hooking tab is closed.
REFERENCES:
patent: 3480138 (1969-11-01), Baker
patent: 3814303 (1974-06-01), Smith
patent: 3985232 (1976-10-01), Johnson
patent: 4106615 (1978-08-01), Hiroshi
patent: 4378903 (1983-04-01), Sherwood
patent: 5341923 (1994-08-01), Arasim
patent: 5692671 (1997-12-01), Mussier et al.
patent: 92 01 283 (1992-03-01), None
patent: 42 22 488 (1993-10-01), None
patent: 43 22 555 (1995-01-01), None
patent: 2 743 542 (1997-07-01), None
Bui Luan K.
Eastman Kodak Company
Parulski Susan L.
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