Fully enclosed carton with diamond corner panels

Details Fully enclosed carton with diamond corner panels Fully enclosed carton with diamond corner panels

2000-06-09

2001-05-08

Bul, Luan K. (Department: 3728)

Special receptacle or package

For plural beverage-type receptacles

C206S141000, C229S117130

Reexamination Certificate

active

06227367

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a fully enclosed wrap-around carton for bottles and cans. It has a pair of triangular panels between the end of the lower side panel and each lower end flap that diverge away from the bottom panel. Similarly, there are a pair of triangular panels between the sloping upper side panel and each upper end flap that diverge away from the top panel. These triangular panels serve to tighten the carton against the bottles or cans packaged therein.
2. Background of the invention
U.S. Pat. No. 4,747,487 to Wood discloses a tubular carton, in which the lower part of each end is closed. A fold line is provided between each lower end panel and the side wall. A crease line is provided that extends divergently upward from the lower corner of each side wall and each end panel. Thus, the corner between the lower side panel and lower end panel is formed with a triangular panel, which is intermediate to the plane of the lower side wall and the lower end wall panel.
U.S. Pat. No. 5,197,598 to Stout et al. discloses a fully enclosed carton that is similar to the Wood carton except it also has triangular panels between the upper side wall and the upper end wall that diverges outwardly from the top panel to the lower side wall. This structure serves to keep the bottles taut in the carton. A carton with a similar set of triangular panels is disclosed in published European Patent Application No. 0 044 169.
It has been difficult to tighten fully enclosed wrap-around cartons around cans or bottles that are cylindrical in form because of the square corners of the carton. It would be desirable if a method could be found to tighten these cartons about the cans or bottles contained.
SUMMARY OF THE INVENTION
It is an object of this invention to find a method for tightening fully enclosed wrap-around cartons for containing cylindrical articles such as cans and bottles.
The object of this invention has been obtained with a fully enclosed wrap-around carton that has a pair of triangular panels between the sloping upper side panel and each upper end flap. These panels diverge away from the intersection between the top end flap, top panel and sloping upper side panel. A pair of triangular panels is provided between the lower side panel and each lower end flap that diverge away from the intersection between the bottom panel, bottom end flap, and lower side panel. When the carton is erected and loaded with the ends being glued, these triangular panels fold into separate planes that basically bisect each corner of the carton between the lower side panel and each lower end flap. These triangular panels are wider at the intersection between the lower side panel and the sloping upper side panel in order to accommodate the greater girth of the bottles at their midsection than at the neck.
These and other objects, features, and advantages of the present invention will become more apparent upon reading the following specification in conjunction with the accompanying drawing figures.


REFERENCES:
patent: 4747487 (1988-05-01), Wood
patent: 5197598 (1993-03-01), Stout et al.
patent: 5246112 (1993-09-01), Stout et al.
patent: 5704470 (1998-01-01), Sutherland
patent: 5826782 (1998-10-01), Stout
patent: B1 6170741 (2001-01-01), Skolik et al.

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