|Publication number||US3554402 A|
|Publication date||Jan 12, 1971|
|Filing date||Apr 24, 1969|
|Priority date||Apr 24, 1969|
|Also published as||DE2017678A1|
|Publication number||US 3554402 A, US 3554402A, US-A-3554402, US3554402 A, US3554402A|
|Inventors||Lock Joseph H|
|Original Assignee||Mead Corp|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (3), Referenced by (38), Classifications (20)|
|External Links: USPTO, USPTO Assignment, Espacenet|
- United States Patent 72 Inventor Joseph H. Lock 3,404,806 10/1968 Richardson 229/27x Mableton, Ga. 3,498,496 3/ 1970 Edwards 229/52(B)  P 9 9 Primary Examiner-Donald F. Norton ggf AttorneyWalter M. Rodgers  Assignee The Mead Corporation a corporauon ofohm ABSTRACT; A fully enclosed carton having top, bottom and spaced sidewalls foldably joined along their side edges to form  FULLY ENCLOSED CARTON FOR RETURNABLE a tubular structure is provided with a longitudinal partition 4 ITEMS panel foldably oined to the bottom and top walls andthe ends 6 Chins summing pigs. of the carton are provided with end closures which are of a composite construction. Each end closure comprises top and  US. Cl 220/115, bottom end flaps foldably joined to the top and bottom walls 229/27- 229/52 respectively together with side end flaps which are foldably [51 Int. Cl 865d 5/46, joined together in fl f contacting relation to close the cap 365d 5/48 365d 5/ 54 ton ends. A pair of transverse weakened severance lines are  Field of Search 229/27, formed in Spaced relation in the top n and in the upper pop 523; 220/1 15 tions of the sidewalls to provide a handle for the carrier and a reinforcing panel is struck from the top portion of the parti-  uNlTE g s ggzfgfiENTs tion panel and folded into flat face contacting relation with an 2,662,684 12/1953 Robins interior surface portion of the top wall so as to afford reinforcement therefor.
PATENTEUJAN 1 2 Ian SHEET 1 0F 3 INVENTOR JOSEPH'H.LOCK
BY ATTOERNEY PATENTEDJANWQH SHEET 2 [IF 3 wa 49 he 4s INVENTOR JOSEPH H.LOCK BY W ATTORNEY PATENTED JAN 1 2:911
SHEET 3 UF 3 flO FIG. 4
INVENTOR I JOSEPH H. LUCK BY I ATTORNEY FULLY ENCLOSED CARTON FOR RETURNABLE ITEMS Where totally enclosed cartons are employed to package a plurality of consumer items such as primary packages made of glass and where such items are of the returnable type, it is difficult to provide a secure carton which is adapted to afford ready access to the interior thereof without weakening the carton to such an extent that it may be an inadequate structure for use in returning the returnable items such as empty bottles.
According to one aspect of the present invention, a reinforcing panel is struck from the top center portion of a medial partition panel and folded into flat face contacting relation with a lower surface portion of the top wall along one side thereof, the other side of the top wall being reinforced by an inner top wall panel foldably joined along its side edges to the upper edge of the partition panel and to the upper edge of one of the sidewalls. By this means, a sturdy structure is provided which also is adapted to afford ready access to the interior of the carton.
For a better understanding of the invention, reference may be had to the following detailed description taken in conjunction with the accompanying drawing in which FIG. 1 is a perspective view of a totally enclosed carton constructed according to this invention and which shows the handle structure in its normal closed position; FIG. 2 is a view generally similar to FIG. 1 but which shows the handle structure in its carrying position; FIG. 3 is a plan view of a unitary blank from which the carton as shown in FIGS. 1 and 2 is formed; FIG. 4 is a cross-sectional view taken along the line designated 44 in FIG. 1 and in which FIG. 5 is a perspective view showing certain internal structure and representing an intermediate stage through which the blank of FIG. 3 is manipulated to form the completed carton as shown in FIGS. 1 2 and 4.
With reference to the drawings, the numeral 1 generally designates the top wall of the carton to the side edge 2 of which a sidewall 3 is foldably joined. Bottom wall 4 is foldably joined to sidewall 3 along fold line 5 and sidewall 6 is foldably joined to bottom wall 4 along fold line 7. Inner top wall panel 8 is foldably joined to sidewall panel 6 along fold line 9 and medial partition panel 10 is foldably joined to inner top wall panel 8 along fold lines 11 and 12. A glue flap 13 is foldably joined to the bottom edge of medial partition panel 10 along fold line 14. Handle panels are defined by weakened severance lines 15, 16, 17 and 18.
In order to form an open ended tubular structure from the bottom, side and top walls as generally described above, an application of glue is made to. the inner upper surface of glue flap 13 and to portions 19 and 20 of the inner upper surface of outer top wall panel 1 as well as to the handle portion between severance lines 15 and 16 as indicated by stippling in FIG. 3. Following this application of glue, the inner top wall panel 8 and the medial partition 10 and glue flap 13 are elevated and folded forwardly along the fold line 9 to cause the glue flap 13 to adhere to the bottom panel 4 so that the bottom edge of medial partition panel 10 is disposed longitudinally and medially of bottom panel 4. Following this operation, sidewall 3 and outer top panel 1 are elevated and folded forwardly along the fold line 5. Thisoperation causes the handle portion of the outer top wall panel 1 which is defined by the spaced apart transverse severance lines 15 and 16 to adhere to the portions of the blank defined by and interposed between the weakened severance lines 17 and 18. Simultaneously, the stippled portions of the outer top wall panel 1 which are designated generally by the numerals 19 and 20 adhere to the outer surface of the ends of inner top wall panel 8.
When the tubular structure as described is formed, the items to be packaged are then inserted into the carton from one or both ends.
In order to close the ends of the carton, the bottom end flaps 21 and 22 are folded upwardly along their respective fold lines 23 and 24 and the top end flaps 25 and 26 are folded downwardly along the weakened severance lines 27 and 28 which interconnect these top end flaps with the outer top wall panel 1. Thereafter, side end flaps 2932 inclusive are folded inwardly along their respective fold lines 33-36 and an appropriate application of glue (not shown) is employed in known a manner to secure all these end flaps so that end closures are formed at each end of the carton. When thus formed the carton affords a complete closure for its contents.
The handle structure for the carton is defined in part by the severance lines 15 and 16 formed in spaced apart transverse relation in the outer top wall panel 1. A medial fold line 37 separates the outer handle panels 38 and 39 in which apertures are defined by hand gripping flaps 40 and 41.
Severance line 15 extends into sidewall 3 along a divergent. severance lige 42 while severance line 16 extends into sidewall 3 along divergent severance line 43.
Severance lines 17 and 18 extend into sidewall 6 along divergent severance lines 44 and 45 respectively and handle panels 46 and 47 are separated by medial fold line 48. Hand gripping flaps 49 and 50 define hand gripping apertures in contents lifted, the handle panels are severed from the top wall structure along the severance lines 15 and 16 and the coincidental severance lines 17 and 18. Furthermore, the severance lines 42, 43, 44 and 45 in all probability are severed at least to some extent. When the carton is picked up in this fashion, the handle structure appears substantially as shown in FIG. 2.
Handle panel 46 in reality is struck from the upper center portion of medial partition panel 10 and since this handle panel is secured in flat face contacting relation to the inner surface of outer handle panel 39, panel 46 is recited in the claims as a reinforcing panel. Furthermore it is apparent from the drawing that the spaced severance lines l5, l6 and the coincidental severance lines 17 and 18 coincide respectively with the end edges of reinforcing panel 46. Thus according to this aspect of the invention, handle structure is provided which is of two-ply construction and hence is of a sturdy and durable nature and well suited for use as a handle for a carton used in connection with returnable bottles.
I foldably joined to the end edges of panels 19, 53 and of panels 20 and 54 along the weakened severance lines 27 and 28 respectively.
In order to prevent undue and undesired tearing of panels 19 and 20, 53 and 54 it may be desirable to form slash lines such as are indicated by the numerals 55, 56, 57 and 58 in the panels such as 19 and 53. Of course similar slash lines may be formed in panels 20 and 54 if desired.
With the panels 19, 20, 53 and 54 swung to the open position, it is obvious that ready access to the contents of the carton is afforded. Furthermore after the contents of the bottles are used, the bottles may be replaced within the carton and the panels such as 19, 20, 53 and 54 may then be closed if desired. v
Since the side end panels such as 29, 32 are glued in face contacting relation to the bottom end panels 21 and 22, the .end closures for the carton are not ruptured and serve as adequate closures during the return operation even though top end panels such as 25 and 26 are now severed from the laim:
l. A carton comprising a bottom wall, a top wall including an inner top wall panel and an outer top wall panel, a pair of sidewalls foldably joined to the side edges of said bottom wall, said inner top wall panel foldably joined to the top edge of one of said sidewalls and having its opposite inner edge disposed medially of said top wall longitudinally thereof, a longitudinal partition panel foldably joined to the inner edge of said inner top wall panel and having its bottom edge foldably joined to said bottom wall medially thereof, said outer top wall panel foldably joined to the upper edge of the other of said sidewalls and secured in face contacting relation to said inner top wall panel, and a reinforcing panel struck from the top portion of said partition panel and disposed in flat face contacting relation to the inner surface of said outer top wall panel and disposed on the opposite side of said partition panel from said inner top wall panel and forming therewith a two-ply reinforcement for a portion of said top wall.
2. A carton according to claim 1 wherein spaced apart severance lines are formed in said top wall transversely thereof and arranged to extend downwardly into the upper portions of said sidewalls and defining therebetween a handle structure having a least one hand gripping aperture therein.
3. A carton according to claim 2 wherein said severance 4 i jt e i i' forcing panel whereby the portion of said handle structure which is formed from said top wall is to of two-ply construction.
4. A carton according toclaim 2 wherfi' iib'r 5. A carton according to claim 2 WhereiHiBEndfiE siE foldably joined to the end edges respectively of said outer top wall panel along weakened severance lines, each top end flap forming a portion of an end closure for one end of the carton.
6, A carton according foldably joined to each end edge of both of said sidewalls and wherein a bottom end flap is foldably joined to each end edge of said bottom wall, said top and bottom end flaps being secured in flat face contacting relation with said side end flapsat each end of the carton to form an end closure therefor which is severable from the end edges of said outer top wall to afford access to the interior of the carton without rupturing said end closures.
to claim 5 wherein a side end flap is
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|U.S. Classification||206/193, 229/240, 229/120.8, 229/117.14, 229/117.22|
|International Classification||B65D5/4805, B65D5/18, B65D5/462, B65D5/483, B65D5/00, B65D5/48, B65D5/46|
|Cooperative Classification||B65D5/48014, B65D5/46152, B65D5/18, B65D5/46184|
|European Classification||B65D5/48A2, B65D5/18, B65D5/46B4, B65D5/46B5|