US3138314A - Carton - Google Patents

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Publication number
US3138314A
US3138314A US258524A US25852463A US3138314A US 3138314 A US3138314 A US 3138314A US 258524 A US258524 A US 258524A US 25852463 A US25852463 A US 25852463A US 3138314 A US3138314 A US 3138314A
Authority
US
United States
Prior art keywords
lock
section
carton
lid
flap
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.)
Expired - Lifetime
Application number
US258524A
Other languages
English (en)
Inventor
Richard F Reifers
Henry A Lord
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.)
Diamond National Corp
Original Assignee
Diamond National Corp
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 to NL298893D priority Critical patent/NL298893A/xx
Application filed by Diamond National Corp filed Critical Diamond National Corp
Priority to US258524A priority patent/US3138314A/en
Priority to GB33481/63A priority patent/GB1036096A/en
Priority to BE640135A priority patent/BE640135A/xx
Priority to DEP1271A priority patent/DE1271016B/de
Priority to SE40164A priority patent/SE219338C1/sv
Application granted granted Critical
Publication of US3138314A publication Critical patent/US3138314A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/30—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure
    • B65D85/32—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure for eggs
    • B65D85/324—Containers with compartments made of pressed material

Definitions

  • Another object of the present invention is to provide an improved lock flap for cooperating with an integrally molded tray and lid, in which the lock flap includes a double lock structure facilitating simultaneous operation of the locks in addition to rigidifying the lock flap as well as stabilizing the lock flap structure during production.
  • a further object of the present invention is to provide an improved lock flap for molded pulp cartons of the character involved in which the lock buttons are stabilized during production of same for proper orientation after the carton is dried, and in which such stabilizing structure rigidifies the lock flap to the degree to provide a lock which is highly practical and adaptable in cartons of the character involved.
  • FIG. 2 is a vertical section taken substantially on the plane of line 2-2 of FIG. 1;
  • FIG. 3 is a vertical section, showing the portions of FIG. 2 when the carton is locked;
  • FIG. 4 is a perspective view of the improved lock flap of the invention.
  • FIG. 5 is a fragmentary top plan View looking into the carton bottom section and at the rear of the lock flap thereof;
  • FIG. 6 is an enlarged section taken substantially on the plane of line 66 of FIG. 5;
  • FIG. 7 is an enlarged fragmentary section taken substantially on the plane of line 7-7 of FIG. 5;
  • FIG. 8 is an enlarged fragmentary section similar to a portion of FIG. 3.
  • the present invention is shown on an egg carton and may be utilized thereon or on a similar container which incorporates a bottom section, lid section and lock flap section, in which the lid and lock flap sections are articulated or hingedly connected to the bottom section so that they will automatically snap lock together, in a closed condition, and yet be readily and quickly releasable for access to the carton contents.
  • a molded pulp carton is indicated generally at 10 and includes a cellular bottom section 12 formed as a 3 by 4 style molded pulp carton for containing eggs, for example.
  • section 12 in spaced parallel relation to the hinge connec lice
  • the carton is molded in any suitable manner, and the bottom section 12 includes an upper peripheral margin 14 having hingedly connected at the forward edge 16 a lock flap indicated generally at 18,
  • a lid indicated generally at 20 the lid including a substantially planar top wall 22 integral with outwardly flared depending side walls including a front wall 24.
  • the lid section 20 includes a lower peripheral, marginal flange 26 which will engage on the lower peripheral margin 1 of the bottom section 12.
  • the forward wall 24 of the lid section 20 has formed therein a pair of longitudinally spaced apertures 28 which extend substantially into the intersection between the walls 22 and 24, the apertures including a lower abutment edge 30.
  • the lower marginal flange 14 of the bottom section 12 has formed therein a pair of notched out portions 32 flanking opposite ends of the lock flap section 18 to per-' mil: ready hinged movement thereof.
  • the lock flap section 18 will normally be disposed in the position as seen in FIG. 2, and will snap beneath the wall 24 of the lid section 20 asillustrated for example, in FIG. 3.
  • the lock flap section 18 comprises a substantially planar base 34 terminating in a lower outwardly directed foot-portion 36 integral with the hinge connection 16.
  • the lock flap section has a substantially L-shaped vertical section as clearly seen in FIGS. 2 and 3, for example.
  • lockbuttons 38 Integral with the planar base 34 and projecting forwardly therefrom and in alignment with the apertures 28 of the lid wall 24 are lockbuttons 38 which will project through the apertures 28 of the lid section when the carton is locked, and engage over the abutment edges 30 of Y the apertures.
  • the bar 40 stabilizes the flap so that it acts as a board-like plane, and closing of the carton is materially assisted since a rotary or pivotal movement of the entire lock flap is afforded in a manner similar to what one would expect when placing simultaneous equal force on both buttons 38.
  • the bar 40 rigidifies the lock flap to the extent that when closing the carton, pressure on one button alone, i.e. as the lid moves downwardly over the lock flap, results in causing integrated movement of the lock flap and both buttons are moved into the locking position.
  • the ribs 42-50 and the bar 49 so rigidify the lock flap that the center abutment 53, when engaged by the lock flap during inward pivotal movement during carton closing, serves to equalize or distribute deflection on the lock flap to the extent that only one abutment need be formed on the carton, i.e. those portions similar in appearance to portion 58 (see FIG. 5) and flanking the 3 same are not required to be formed as deflecting abutments.
  • the carton can be readily locked by holding the carton in one hand and deflecting the locking flap in the center with one finger and subsequently closing the cover downwardly. Further, the carton can also be locked by depressing the lock fiap inwardly adjacent the flap buttons 38 and subsequently closing the cover,
  • a plurality of rib elements 42, 44 and 46 which terminate in the foot portion 36 of the lock flap section.
  • An elongated rib 48 extends between the adjacent portions of the ribs 46, and has a plurality of rib portions 50 depending therefrom and also terminating in the foot 36 of the lock flap section.
  • Formed at the base of rib elements 42 and 44 are angular fillet portions 52, and between the rib elements 50 is a similar angular fillet portion 54.
  • the bottom section 12 of the carton includes a vertical abutment or stop 56 which will include a forward surface 58 which will engage the inner surface 60 of the fillet portion 54 of the lock flap section; see FIGS. 2 and 3.
  • the bar 40 in addition to the ribs 4250 stabilize the lock buttons 38 and prevent distortion of the lock flap section utilizing the pre-stressing principals described in detail in applicants copending application #171,174. Additionally, the manner in which the carton is manipulated is described in detail in United States Letters Patent #2,888,183 and a complete description of the operation or manipulation of the carton parts in order to open or close the carton is believed to be unnecessary.
  • a molded pulp carton including a bottom section having an opposed lid and lock flap section hingedly connected to oppose margins thereof, cooperating lock means on said lock flap and lid sections, said lid section including a substantially planar top wall and depending forward wall, said forward wall including a pair of spaced aperture portions extending therethrough, said lock flap section including a panel removably received beneath said forward wall of said lid section and including a pair of lock buttons projecting forwardly therefrom and in alignment with and removably receivable in said aperture por- '4 tions, said lock flap panel being substantially planar and including a substantially rigid bar extending between opposed portions of said lock buttons for integrating simultaneous movement of said lock buttons when opening or closing the carton.
  • lock flap panel includes a plurality of integral ribs depending beneath each of said lock buttons.
  • a molded pulp carton including a bottom section having an opposed lid and lock flap section hingedly connected to opposed margins thereof, cooperating lock means on said lock flap and lid sections, said lid section including a substantially planar top wall and depending forward wall, said forward wall including a pair of spaced aperture portions extending therethrough, said lock flap section including a panel removably received beneath said forward wall of said lid section and including a pair of lock buttons projecting forwardly therefrom and in alignment with and removably receivable in said aperture portions, said lock flap panel including a substantially rigid bar extending between said lock buttons for integrating movement of said lock buttons when opening the carton, said lock flap panel including a plurality of integral ribs depending beneath each of said lock buttons, said lock flap panel including an elongated rib extending between adjacent intermediate portions of said depending ribs and disposed parallel to said substantially rigid bar.
  • lock flap panel includes a plurality of ribs depending beneath said elongated rib.
  • lock flap panel comprises a substantially L-shaped vertical section, said depending ribs beneath said lock buttons and elongated rib terminating at an integral width at lower leg portion of said L-shaped vertical section.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Closures For Containers (AREA)
US258524A 1963-02-14 1963-02-14 Carton Expired - Lifetime US3138314A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL298893D NL298893A (en&quot) 1963-02-14
US258524A US3138314A (en) 1963-02-14 1963-02-14 Carton
GB33481/63A GB1036096A (en) 1963-02-14 1963-08-23 Improvements in or relating to molded pulp articles
BE640135A BE640135A (en&quot) 1963-02-14 1963-11-19
DEP1271A DE1271016B (de) 1963-02-14 1963-12-06 Papierstoffbehaelter
SE40164A SE219338C1 (en&quot) 1963-02-14 1964-01-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US258524A US3138314A (en) 1963-02-14 1963-02-14 Carton

Publications (1)

Publication Number Publication Date
US3138314A true US3138314A (en) 1964-06-23

Family

ID=22980936

Family Applications (1)

Application Number Title Priority Date Filing Date
US258524A Expired - Lifetime US3138314A (en) 1963-02-14 1963-02-14 Carton

Country Status (6)

Country Link
US (1) US3138314A (en&quot)
BE (1) BE640135A (en&quot)
DE (1) DE1271016B (en&quot)
GB (1) GB1036096A (en&quot)
NL (1) NL298893A (en&quot)
SE (1) SE219338C1 (en&quot)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3223306A (en) * 1964-04-20 1965-12-14 Eugene M Alsman Carton with dual locking flaps
US3243095A (en) * 1964-12-08 1966-03-29 Kenneth L Crabtree Pulp partition molding
US3337110A (en) * 1966-04-08 1967-08-22 Mobil Oil Corp Egg carton construction
US3398875A (en) * 1966-12-30 1968-08-27 United Ind Syndicate Egg cartons
US3471078A (en) * 1966-12-22 1969-10-07 Brodrene Hartman As Packing of fibre mass or other resilient material for eggs and other fragile objects
US3556387A (en) * 1968-11-29 1971-01-19 Haveg Industries Inc Positive latch for two-lid egg cartons
US3670952A (en) * 1971-02-03 1972-06-20 Richard Joseph Venuti Egg carton
US3771712A (en) * 1971-03-02 1973-11-13 Autobars Vendabeka Ltd Boxes or packs for packaging eggs; fruit or other articles
US3813027A (en) * 1972-10-26 1974-05-28 Packaging Corp America Carton construction
US4240575A (en) * 1979-05-07 1980-12-23 Mobil Oil Corporation Egg carton with crush resistant top
US20050178689A1 (en) * 2004-02-12 2005-08-18 Marvin Aardema Transparent egg cartons
US20060060493A1 (en) * 2004-02-12 2006-03-23 Craig Marshall Tamper resistant seals for transparent or other egg cartons
USD632976S1 (en) * 2009-10-29 2011-02-22 Huhtamaki Nederland Bv Egg carton
USD632975S1 (en) * 2009-10-29 2011-02-22 Huhtamaki Nederland Bv Egg carton
USD632974S1 (en) * 2009-10-29 2011-02-22 Huhtamaki Nederland Bv Egg carton
USD632977S1 (en) * 2009-10-29 2011-02-22 Huhtamaki Nederland Bv Egg carton
US11912494B2 (en) * 2020-05-27 2024-02-27 Huhtamaki Molded Fiber Technology B.V. Packaging unit from a moulded pulp material with elevated lock and method for manufacturing such packaging unit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2974847A (en) * 1957-10-24 1961-03-14 Diamond National Corp Packages or cartons for eggs and other fragile articles
US3093286A (en) * 1961-01-24 1963-06-11 Mead Corp Molded foamed plastic egg carton

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2888183A (en) * 1957-02-27 1959-05-26 Diamond Gardner Corp Molded pulp egg carton and carton hinge construction
GB1102554A (en) * 1964-01-27 1968-02-07 Commissariat Energie Atomique Process for eliminating from a solution anions derived from oxycids

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2974847A (en) * 1957-10-24 1961-03-14 Diamond National Corp Packages or cartons for eggs and other fragile articles
US3093286A (en) * 1961-01-24 1963-06-11 Mead Corp Molded foamed plastic egg carton

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3223306A (en) * 1964-04-20 1965-12-14 Eugene M Alsman Carton with dual locking flaps
US3243095A (en) * 1964-12-08 1966-03-29 Kenneth L Crabtree Pulp partition molding
US3337110A (en) * 1966-04-08 1967-08-22 Mobil Oil Corp Egg carton construction
US3471078A (en) * 1966-12-22 1969-10-07 Brodrene Hartman As Packing of fibre mass or other resilient material for eggs and other fragile objects
US3398875A (en) * 1966-12-30 1968-08-27 United Ind Syndicate Egg cartons
DE1586869B1 (de) * 1966-12-30 1971-06-24 Portland Company Division Of U Einstueckig geformter Karton zur Aufnahme empfindlicher Gegenstaende,insbesondere Eier
US3556387A (en) * 1968-11-29 1971-01-19 Haveg Industries Inc Positive latch for two-lid egg cartons
US3670952A (en) * 1971-02-03 1972-06-20 Richard Joseph Venuti Egg carton
US3771712A (en) * 1971-03-02 1973-11-13 Autobars Vendabeka Ltd Boxes or packs for packaging eggs; fruit or other articles
US3813027A (en) * 1972-10-26 1974-05-28 Packaging Corp America Carton construction
US4240575A (en) * 1979-05-07 1980-12-23 Mobil Oil Corporation Egg carton with crush resistant top
US20050178689A1 (en) * 2004-02-12 2005-08-18 Marvin Aardema Transparent egg cartons
US20060060493A1 (en) * 2004-02-12 2006-03-23 Craig Marshall Tamper resistant seals for transparent or other egg cartons
US7258234B2 (en) * 2004-02-12 2007-08-21 Marvin Aardema Transparent egg carton with closure flap
USD632976S1 (en) * 2009-10-29 2011-02-22 Huhtamaki Nederland Bv Egg carton
USD632975S1 (en) * 2009-10-29 2011-02-22 Huhtamaki Nederland Bv Egg carton
USD632974S1 (en) * 2009-10-29 2011-02-22 Huhtamaki Nederland Bv Egg carton
USD632977S1 (en) * 2009-10-29 2011-02-22 Huhtamaki Nederland Bv Egg carton
US11912494B2 (en) * 2020-05-27 2024-02-27 Huhtamaki Molded Fiber Technology B.V. Packaging unit from a moulded pulp material with elevated lock and method for manufacturing such packaging unit

Also Published As

Publication number Publication date
BE640135A (en&quot) 1964-03-16
GB1036096A (en) 1966-07-13
DE1271016B (de) 1968-06-20
NL298893A (en&quot)
SE219338C1 (en&quot) 1968-02-27

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