US3904066A — Double-wall blow molded carton

Claim 1

Independent Claim 240 words

In a collapsible carton having a body formed from a blank of semi-rigid moldable material, said body including a bottom and at least four side sections, said sections being of double-wall construction, each of said side sections being integrally, pivotally joined with said bottom section with each of said side sections being pivotably movable to an upright position with respect to said bottom section, each of said side sections in said upright position being angularly disposed with respect to adjacent side sections with side edges of eaCh adjacent side section abutting an adjacent side section and therewith forming a corner in the erected position, the improvement comprising: each side section having a groove formed on the outer surface thereof adjacent each side edge, said grooves each extending substantially parallel to its respective side edge and terminating at a groove shoulder aligned with and abutting a respective protrusion extending below said side sections a sufficient distance so that when the carton is in an erected condition said protrusion will extend into and contact a respective recess in the bottom section; and a fastener of a U configuration having a middle portion extending across the top of each respective corner, each fastener being slidably engaged and removably positioned in the associated grooves of a corner in contact with the shoulders of the grooves and being of a length sufficient for extending from the shoulder to an elevation higher than the side sections.

Claim 2

Dependent Claim 240 words

In a collapsible carton having a body formed from a blank of semi-rigid moldable material, said body including a bottom and at least four side sections, said sections being of double-wall construction, each of said side sections being integrally, pivotally joined with said bottom section with each of said side sections being pivotably movable to an upright position with respect to said bottom section, each of said side sections in said upright position being angularly disposed with respect to adjacent side sections with side edges of eaCh adjacent side section abutting an adjacent side section and therewith forming a corner in the erected position, the improvement comprising: each side section having a groove formed on the outer surface thereof adjacent each side edge, said grooves each extending substantially parallel to its respective side edge and terminating at a groove shoulder aligned with and abutting a respective protrusion extending below said side sections a sufficient distance so that when the carton is in an erected condition said protrusion will extend into and contact a respective recess in the bottom section; and a fastener of a U configuration having a middle portion extending across the top of each respective corner, each fastener being slidably engaged and removably positioned in the associated grooves of a corner in contact with the shoulders of the grooves and being of a length sufficient for extending from the shoulder to an elevation higher than the side sections.

Claim 3

Dependent Claim 52 words

A carton, as set forth in claim 1, wherein the edges of the side sections of the carton have a recess formed at each corner portion, said recess being of a depth sufficient for spacing the corner portion from the middle portion of the fastener in the erected condition of the carton.

Claim 4

Dependent Claim 55 words

A carton, as set forth in claim 1, including flanges extending upwardly from an outer surface of the side sections to an elevation higher than the upper edges of said side sections and said fasteners in the erected condition of said carton for forming walls for aligning and retaining a carton of similar dimensions thereover.

Claim 5

Dependent Claim 120 words

A carton, as set forth in claim 3, wherein the edges of the ends of the sides which meet in erected position are tapered inwardly towards the inside of the carton so that the faces of the tapered surfaces meet to form a joint and wherein the flanges are located adjacent the tapered edges of the side sections and the edges of the bottom of the side walls and the edges of the sides of the bottom section are tapered so that when the carton is assembled said tapered edges mate in a manner such that the outside surface of the side walls and the bottomside surface of the bottom section join to define the bottom edges of the carton.

Claim 6

Dependent Claim 15 words

A carton, as set forth in claim 1, wherein the fasteners are constructed of metal.

Claim 7

Dependent Claim 24 words

A carton as set forth in claim 1, wherein the protrusions are positioned such that they appear to be tubular extensions of the grooves.

Claim 8

Dependent Claim 41 words

A carton as set forth in claim 6 where the top edges of the side sections of the carton have a recess formed at each corner portion such that the middle portion of the fastener does not contact the side section.

Claim 9

Dependent Claim 161 words

A collapsible carton adapted to lie substantially flat in its collapsed state and having sides adapted to abut in their vertical position with adjacent side sections to form corners of the carton, each side section having a groove formed on the outer surface thereof adjacent each side edge, said groove terminating at a groove shoulder, each groove shoulder having aligned and butting therewith a protrusion extending below said side section a sufficient distance so that when the carton is in an erected condition, said protrusion will extend into and contact a respective recess in the bottom section, each corner of said carton being held together by a U-shaped fastener extending across the top of said corner, its legs being slidably and removably engaged in the grooves adjacent each corner, said fastener legs being of length sufficient to insure that the ends of the legs contact the groove shoulder and that the middle portion of the fasteners extend above the side sections.

Claim 10

Dependent Claim 161 words

A collapsible carton adapted to lie substantially flat in its collapsed state and having sides adapted to abut in their vertical position with adjacent side sections to form corners of the carton, each side section having a groove formed on the outer surface thereof adjacent each side edge, said groove terminating at a groove shoulder, each groove shoulder having aligned and butting therewith a protrusion extending below said side section a sufficient distance so that when the carton is in an erected condition, said protrusion will extend into and contact a respective recess in the bottom section, each corner of said carton being held together by a U-shaped fastener extending across the top of said corner, its legs being slidably and removably engaged in the grooves adjacent each corner, said fastener legs being of length sufficient to insure that the ends of the legs contact the groove shoulder and that the middle portion of the fasteners extend above the side sections.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1978-09-08	1979-03-10	1979-09-09	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1982-09-08	1983-03-10	1983-09-09	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1986-09-08	1987-03-10	1987-09-09	$7700.00	Window Closed / Lapsed

Double-wall blow molded carton

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