Envelopes – wrappers – and paperboard boxes – Paperboard box – With closure for an access opening
Patent
1997-08-25
2000-02-01
Elkins, Gary E.
Envelopes, wrappers, and paperboard boxes
Paperboard box
With closure for an access opening
229933, 229184, 22912542, B65D 508
Patent
active
060192798
DESCRIPTION:
BRIEF SUMMARY
This invention relates to a packaging container of sheet material and a blank from which the container can be made.
Blanks an cartons according to, or virtually according to, the present FIGS. 1 and 2 are conventional.
U.S. Pat. No. 4,192,446 discloses blanks and cartons according to the present FIGS. 3 and 4.
GB-A-2,176,767 discloses blanks and cartons according to the present FIGS. 5 to 7.
According to one aspect of the present invention, there is provided a sheet material blank from which a packaging container is to be made, comprising: panels, and substantially parallelly to said row of body panels and comprised of first, second, third and fourth end closure panels whereof each of the first and third end closure panels has first and second oblique lines of weakness which divide its panel into a central sub-panel of substantially isosceles triangular form and two end sub-panels of substantially triangular form, projecting centrally outwardly with respect to its panel and thereby bounding respective recesses in the outermost edge zone of its panel, outwardly with respect to its panel, from a longitudinal centre line of said row of body panels to substantially the same extent as each other, and the same extent as do said lugs, bounds respective recesses in the outermost edge zone of it panel, with those recesses being bounded also by respective edges of said second end closure panel which extend in the same general direction as said row of body panels, the edge zone of said fourth end closure panel which is furthest from said longitudinal centre line are so dimensioned that such lugs and such edge zones of a first row of blanks identical to said blank can interdigitate with corresponding lugs and corresponding edge zones of a second row of blanks each identical to said blank.
Owing to this aspect of the invention, it is possible to reduce significantly the amounts of waste sheet material produced during production of such blanks, whilst yet providing for gas-tightness of the end closure.
According to a second aspect of the present invention, there is provided a sheet material blank from which a packaging container is to be make, comprising: panels, and substantially parallelly to said row of body panels and comprised of first, second, third and fourth end closure panels whereof each of the first and third end closure panels has first and second oblique lines of weakness which divide its panel into a central sub-panel of substantially isosceles triangular form and two end sub-panels of substantially triangular form, projecting centrally outwardly with respect to its panel and thereby bounding respective recesses in the outermost edge zone of its panel, outwardly with respect to its panel, and outwardly protruding portions at respective opposite sides of said central lug of said second end closure panel for protruding beyond respective adjacent free edges of said first and third end closure panels, from a longitudinal centre line of said row of body panels to substantially the same extent as each other, and the same extent as do said lugs, edges which commence substantially perpendicularly to said centre line of said row of body panels and continue towards said central lug,
According to a third aspect of the present invention, there is provided a packaging container of sheet material, including: portions, and portions extending from respective edges of the first and third body portions, with the outer portion overlapping the inner portion externally of said inner portion, and also including first and second groups of substantially triangular wall portions, comprising respective inner, substantially triangular, wall portion extending from the second and fourth body portions, respectively, to respective apices adjacent each other, and respective pairs of outer, substantially triangular, wall portions extending from the respective inner, substantially triangular wall portion, and from the inner and outer, substantially rectangular, wall portion, the respective pairs of outer, substantially triangular, wall por
REFERENCES:
patent: 4192446 (1980-03-01), Naito
patent: 4332577 (1982-06-01), Mosse
patent: 4341340 (1982-07-01), Lisiecki
patent: 4667873 (1987-05-01), Yasui et al.
patent: 4813546 (1989-03-01), Gordon et al.
patent: 4872562 (1989-10-01), Wyberg
patent: 5056707 (1991-10-01), Larsen
Elkins Gary E.
Elopak Systems AG
Mai Tri M.
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