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CA2137362A1 - Clamshell Carton Having an Improved Latching Mechanism and a Buckle-Proof Clamshell Carton - Google Patents

Clamshell Carton Having an Improved Latching Mechanism and a Buckle-Proof Clamshell Carton

Info

Publication number
CA2137362A1
CA2137362A1 CA 2137362 CA2137362A CA2137362A1 CA 2137362 A1 CA2137362 A1 CA 2137362A1 CA 2137362 CA2137362 CA 2137362 CA 2137362 A CA2137362 A CA 2137362A CA 2137362 A1 CA2137362 A1 CA 2137362A1
Authority
CA
Canada
Prior art keywords
cut
carton
score line
hinge score
back panel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2137362
Other languages
French (fr)
Other versions
CA2137362C (en
Inventor
John F. Sorenson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PERSECO DIVISION OF HAVI GROUP LP
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US07/898,026 external-priority patent/US5221040A/en
Priority claimed from US07/898,027 external-priority patent/US5205476A/en
Priority claimed from US08/051,533 external-priority patent/US5332147A/en
Application filed by Individual filed Critical Individual
Publication of CA2137362A1 publication Critical patent/CA2137362A1/en
Application granted granted Critical
Publication of CA2137362C publication Critical patent/CA2137362C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/64—Lids
    • B65D5/66—Hinged lids
    • B65D5/6626—Hinged lids formed by folding extensions of a side panel of a container body formed by erecting a "cross-like" blank
    • B65D5/665—Hinged lids formed by folding extensions of a side panel of a container body formed by erecting a "cross-like" blank the lid being held in closed position by self-locking integral flaps or tabs
    • B65D5/667—Lids in the form of an inverted tray

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)

Abstract

A paperboard clamshell carton includes a tray and a cover, hingedly connected and latched in the closed position by cooperating latching members. Detents, extending forwardly from adjacent the upper corners of the front wall of the tray, and detent engaging slots and tabs in the cover, located adjacent the lower corners of the front wall of the cover, releasably engage when the cover is folded shut over the tray. The forwardly extending detents are of double thickness, being formed by overlapped extensions of the glue flaps and side walls of the tray. In another aspect of the invention, a clamshell type carton is provided with a cut along the hinge score line connecting the upper cover and lower tray portions. Either a second cut in the back panel of the carton, above or below the hinge score line cut, or a cut-out slot encompassing the hinge score line cut, is utilized to facilitate the easy opening and closing of the carton without buckling occurring in the back panel in the region of the hinge score line. In another aspect of the invention, a clamshell type carton is provided with a cut along the hinge score line connecting the upper cover and lower tray portions. A second cut is placed is the back panel of the carton, above or below the hinge score line cut, wherein the second cut is a continuous curve having a first end point located in the back panel and a second end point intersecting the cut along the hinge score line. The second cut is utilized to facilitate the easy opening and closing of the carton without buckling occurring in the back panel in the region of the hinge score line.
CA002137362A 1992-06-12 1993-06-10 Clamshell carton having an improved latching mechanism and a buckle-proof clamshell carton Expired - Lifetime CA2137362C (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US07/898,026 1992-06-12
US07/898,026 US5221040A (en) 1992-06-12 1992-06-12 Buckle-proof clamshell carton
US07/898,027 1992-06-12
US07/898,027 US5205476A (en) 1992-06-12 1992-06-12 Clamshell carton having an improved latching mechanism
US08/051,533 US5332147A (en) 1992-06-12 1993-04-23 Buckle-proof clamshell carton
US08/051,533 1993-04-23
PCT/US1993/005533 WO1993025444A1 (en) 1992-06-12 1993-06-10 Clamshell carton having an improved latching mechanism and a buckle-proof clamshell carton

Publications (2)

Publication Number Publication Date
CA2137362A1 true CA2137362A1 (en) 1993-12-23
CA2137362C CA2137362C (en) 1999-02-16

Family

ID=27367972

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002137362A Expired - Lifetime CA2137362C (en) 1992-06-12 1993-06-10 Clamshell carton having an improved latching mechanism and a buckle-proof clamshell carton

Country Status (3)

Country Link
AU (1) AU4531893A (en)
CA (1) CA2137362C (en)
WO (1) WO1993025444A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG59933A1 (en) * 1996-03-11 1999-02-22 Lau Boon Wee Improvements in or relating to containers
DE202005014738U1 (en) * 2005-09-19 2007-02-08 Seda S.P.A., Arzano Container and cut
US7938284B2 (en) 2006-07-06 2011-05-10 Pioneer Hi-Bred International, Inc. Buckling clamshell container for automated aliquot and dispersal processes
US8887938B2 (en) 2006-07-06 2014-11-18 Pioneer Hi-Bred International, Inc. Buckling clamshell container for automated aliquot and dispersal processes
US8702371B2 (en) 2007-07-06 2014-04-22 Pioneer Hi Bred International Inc Method of handling clamshell containers containing a particulate aliquot
BRPI0918647B1 (en) 2008-09-16 2018-02-06 Pioneer Hi-Bred International, Inc. AUTOMATED EXPERIMENTAL SEED PLANTING SYSTEM, PLANTING METHOD OF AN EXPERIMENTAL SHARE AND AUTOMATED APPARATUS FOR EXPERIMENTAL SEED PLANTING

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3135456A (en) * 1962-11-16 1964-06-02 Palazzolo Frank Flexible hinge device for containers having a curved side
NL7311773A (en) * 1973-08-27 1975-03-03 Tilburgse Steen En Offsetdrukk PLANO FOR THE MANUFACTURE OF A BOX WITH NECK AND GRIPPING LID, AND THE BOX OBTAINED FROM THAT PLANO.
SE399228B (en) * 1976-02-04 1978-02-06 Duni Bila Ab CARTON OF CARTON OR SIMILAR FLEXIBLE MATERIAL WITH A LOWER BOTTOM AND A LID-FORMED UPPER TRAY
US4232816A (en) * 1979-03-16 1980-11-11 Container Corporation Of America Clamshell type carton
US4266713A (en) * 1979-10-26 1981-05-12 American Can Company Unitary double cavity carton
US4570845A (en) * 1984-11-23 1986-02-18 Dixie Canada Inc. Carton closure releasable by deformation
US4792085A (en) * 1987-01-09 1988-12-20 Waring Iii John S Buckle-proof clamshell container
US4877178A (en) * 1989-05-04 1989-10-31 Dopaco, Inc. Paperboard foldable carton
WO1992009486A1 (en) * 1990-11-26 1992-06-11 Visy Board Properties Pty. Ltd. Convenience food container

Also Published As

Publication number Publication date
CA2137362C (en) 1999-02-16
WO1993025444A1 (en) 1993-12-23
AU4531893A (en) 1994-01-04

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Legal Events

Date Code Title Description
EEER Examination request