[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

US3682369A - Panel lock - Google Patents

Panel lock Download PDF

Info

Publication number
US3682369A
US3682369A US703A US3682369DA US3682369A US 3682369 A US3682369 A US 3682369A US 703 A US703 A US 703A US 3682369D A US3682369D A US 3682369DA US 3682369 A US3682369 A US 3682369A
Authority
US
United States
Prior art keywords
panel
notch
locking tongue
panels
hinged
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
US703A
Inventor
Eugene H Isakson
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.)
Stone Container Corp
Hoerner Waldorf Corp
Original Assignee
Hoerner Waldorf 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
Application filed by Hoerner Waldorf Corp filed Critical Hoerner Waldorf Corp
Application granted granted Critical
Publication of US3682369A publication Critical patent/US3682369A/en
Assigned to STONE BROWN PAPER, INC., A CORP. OF reassignment STONE BROWN PAPER, INC., A CORP. OF ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: CHAMPION INTERNATIONAL CORPORATION, A CORP.OF N.Y.
Assigned to STONE CONTAINER CORPORATION reassignment STONE CONTAINER CORPORATION MERGER (SEE DOCUMENT FOR DETAILS). EFFECTIVE DATE: DECEMBER 31, 1986 Assignors: STONE BROWN PAPERS, INC., A DE CORP., (MERGED INTO)
Assigned to STONE CONTAINER CORPORATION reassignment STONE CONTAINER CORPORATION MERGER (SEE DOCUMENT FOR DETAILS). EFFECTIVE DATE: MAY 20, 1987, DELAWRE Assignors: S.C.C. MERGER CORPORATION, A CORP. OF DE, (CHANGED TO), STONE CONTAINER CORPORATION, A CORP. OF IL, (MERGED INTO)
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B65D5/20—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 by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
    • B65D5/30—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 by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with tongue-and-slot or like connections between sides and extensions of other sides
    • B65D5/301—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 by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with tongue-and-slot or like connections between sides and extensions of other sides the tongue being a part of a lateral extension of a side wall
    • B65D5/302—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 by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with tongue-and-slot or like connections between sides and extensions of other sides the tongue being a part of a lateral extension of a side wall combined with a slot provided in an adjacent side wall

Definitions

  • a notch is provided in the edge of one of the panels, and a generally T-shaped locking tongue is hinged to the other panel along a fold line substantially coinciding with the base of the notch.
  • the locking tongue is folded through the notch so that the cross-bar of the T-shaped tongue lies against the surface of the notched panel most remote from the panel supporting the tongue.
  • paperboard trays often include a bottom panel, side and end walls hingedly connected to the bottom panel, and comer flaps on certain of the walls which are folded into face contact with adjoining walls.
  • the corner flaps may be glued together, or may be stitched or stapled together, but such an arrangement usually requires special equipment and is time consuming, and the resulting trays cannot be disconnected and flattened out if it is so desired.
  • liner panels In order to detachably connect the walls in erected condition, liner panels have often been hinged to the upper edges of two opposed walls, these linerpanels being folded over the corner flaps on the other panels and locked in position by a suitable means.
  • a suitable means is very effective but is of necessity more expensive as the area of the paperboard used is increased.
  • the edge of one of the overlapping panels is provided with a notch, and the edge of the other panel is provided with a generally T-shaped locking tongue.
  • the locking tongue may be swung down into the notch to lock the two panels from separation.
  • a feature of the present invention resides in the simplicity of the operation of setting up a tray or. the like. But providing comer flaps on two opposed panels which are foldable into face contact with the remaining two opposed panels, the walls may be locked in proper relation by merely swinging four locking tongues into corresponding notches.
  • the comer flaps may be folded either inwardly or outwardly of the adjoining walls.
  • the locking tongues may be provided on the comer flaps in which case the locking tongues are folded outwardly to project beyond the adjoining wall.
  • the locking tongues may be on the tray wall, and the notches may be in the corner flaps so that the tray may be locked by swinging the locking tongues inwardly or outwardly, depending upon whether the comer flaps are outwardly or inwardly of the adjoining tray wall.
  • a feature of the present invention resides in the provision of a means of holding two panels in face contact which may, if desired, be disconnected at least a reasonable number of times.
  • the locking tongues are distorted to some extent in the locking operation and will not function effectively if locked and unlocked continuously, but may be unlocked several times if desired.
  • FIG. 1 is a perspective view of a tray in set up form.
  • FIG. 2 is an enlarged perspective view of one of the locks in locked position.
  • FIG. 3 is a perspective view of the inside of a portion of the tray showing one of the locks.
  • FIG. 4 is a diagrammatic view of the blank from which the tray is fonned.
  • FIG. 5 is an enlarged detail of the locking notches.
  • FIG. 6 is a perspective view of a corner of a modified form of a tray.
  • FIG. 7 is a perspective view of the tray corner shown in FIG. 5 in partially locked position.
  • FIG. 8 is a diagrammatic view of the blank from which the modified form of tray is formed.
  • the tray may form one portion of a telescope container including two tray sections telescoped together.
  • the trays could be hexagonal, octagonal, or even triangular if desired, it only being necessary that the tray structure include comer flaps which are folded in face contact with adjoining panels.
  • the tray A shown in FIGS. 1 to 4 of the drawings is constructed of the blank indicated in FIG. 4.
  • the tray is shown as including a rectangular bottom panel 10 which is foldably connected along parallel fold lines 11 to side walls 12.
  • the bottom panel 10 is also connected along parallel fold lines 13 to end walls 14.
  • the side walls 12 are provided as their end edges with corner flaps 15 which are connected thereto along parallel fold lines 16, these fold lines 16 being substantially extensions of the fold lines 13, but which may be slightly ofiset therefrom in order to allow for the thickness of the paperboard.
  • each notch 17 has a relatively wide inlet portion 19 connected by inwardly converging rounded cut lines 20 to a relatively narrower throat portion 21. Below the throat, the notch is relatively wider providing a wide base portion 22.
  • Each comer flap 15 is provided with a generally T-shaped locking tongue.
  • Each locking tongue 23 includes a relatively wide end portion 24 forming the cross bar of the T, and a relatively narrow stem portion 25, the stem portion 25 preferably being slightly wider than the throat 21 of the notch 17, and of substantially the same width as the base portion 22 of the notch 17.
  • the cross bar of the T, or the end portion 24 is preferably wider than the base portion 22 of the notch.
  • the length of the stem 25 is substantially the same as the thickness of the paperboard used. Normally the tray is made of corrugated paperboard.
  • the tray is set up by folding the side walls 12 upwardly into parallel relation, and folding the comer flaps 15 to extend in opposed relation along the fold lines 13, as indicated in FIG. 1.
  • the end walls 14 are then folded upwardly outwardly of the comer flaps l5, and the locking tongues 23 are folded downwardly and outwardly through the notches 17.
  • this may be done by folding the locking tongues downwardly, distorting portions of the tongues to pass through the notches, or the locking tongue may .be folded outwardly while the side walls are slightly less than right angles to the bottom panel, swinging the corner flaps downwardly into position against the bottom wall as the locking tongues are inserted.
  • the finished tray has the locks projecting outwardly therefrom as indicated in FIG. 1. If the tray is a portion of a telescope container, the ends of the tongues are bent down as the cover of the container is inserted. It is possible to arrange the structure so that the locking tongues of the bottom section project outwardly, and the locking tongues of the upper section project inwardly, concealing the ends of the tongues when the two sections are engaged.
  • FIGS. 6, 7, and 8 of the drawings A modified form of tray B is indicated in FIGS. 6, 7, and 8 of the drawings.
  • the tray blank includes a rectangular bottom which is foldably connected along parallel fold lines 31 to side walls 32.
  • the bottom panel 30 is also connected along parallel fold lines 33 to end walls 34.
  • the end walls 34 are provided with corner flaps 35 which are connected to the end walls along parallel fold lines 36, these fold lines being substantially parallel to the fold lines 31, but offset slightly therefrom to allow for the thickness of the paperboard.
  • edges 37 of the flaps 35 which are upper most in the set up form of the tray provided with notches 39 which may be identical to the notches 17 illustrated in FIG. 5 of the drawings, and which accordingly will not be described in detail.
  • the edges 40 of the side walls 32 are provided with generally T-shaped locking tongues 41 which are positioned to register with the notches 37 in the corner flaps 35.
  • Each locking tongue 41 includes a short stern portion 42 connected to the side wall 32 along a fold line 43, and connected to the cross bar member 44 along a fold line 45.
  • a pair of generally parallel fold lines 46 extend across the cross bar 44 in substantial alignment with the side edges of the stem portion 42 of the locking tongue.
  • the fold lines 46 form wings which fold out of the plane of the center portion of the cross bar 44 when the locking tongues are folded into the notches 39. This operation is illustrated in FIG. 7 of the drawings. It will be noted that in FIG. 7, the corner flaps 35 are folded outwardly of the side walls 32, and the locking tongues 31 fold outwardly, this arrangement is preferable in view of the fact that the corner flaps then wrap around the comers of the side walls and hold the side walls from bulging outwardly. However, if preferred, the corner flaps 35 could be arranged to fold inwardly of the side walls in which case the locking tongues 41 would be folded inwardly rather than outwardly.
  • a corrugated paperboard tray including a bottom panel, side panels hinged to the edges of said bottom panel and extending upwardly therefrom and corner flaps hinged to an end of certain of said side panels and folded into face contact with the adjoining side panel, a lock including:
  • said locking tongue including a stern portion having parallel sides extending through said notch, said st mbei fal et th th thick ssof mi corriig ted gg aiz iai df an a ci'oss-bzi r portion engaging the surface of said one overlapping panel opposite that engaged by said other panel, and parallel fold lines extending across said crossbar portion from the stem portion to the end of said locking tongue portions, said parallel fold lines being substantially aligned with the parallel sides of said stem.
  • a corrugated paperboard tray including a bottom panel, side panels hinged to the edges of said bottom panel and extending upwardly therefrom and corner flaps hinged to an end of certain of said side panels and folded into face contact with the adjoining side panel, a lock including:
  • said locking tongue including a stem portion having parallel sides extending through said notch, said stem being of a length greater than the thickness of the corrugated paperboard, and a cross-bar portion engaging the surface of said one overlapping panel opposite that engaged by said other panel, said notch having a base portion substantially equal in width to said stem portion of said locking tongue and a throat portion above said base portion which is slightly narrower than the width of said stern portion.

Landscapes

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

Abstract

A panel lock is provided for securing two paperboard panels in face contact. A notch is provided in the edge of one of the panels, and a generally T-shaped locking tongue is hinged to the other panel along a fold line substantially coinciding with the base of the notch. The locking tongue is folded through the notch so that the cross-bar of the T-shaped tongue lies against the surface of the notched panel most remote from the panel supporting the tongue.

Description

United States Patent Isakson [151 3,682,369 [4 1 Aug. 8, 1972 [54] PANEL LOCK [72] Inventor: Eugene H. Isakson, Saint Paul,
Minn.
[73] Assignee: l-loerner Waldorf Corporation,
Ramsey County, Minn.
[22] Filed: Jan. 5, 1970 [21] Appl. No.: 703
[52] US. Cl ..229/35 [51] Int. Cl. ..B65d 5/26 [58] Field of Search ..229/35, 31
[56] References Cited UNITED STATES PATENTS 2,660,363 11/1953 Trickett, Jr. et al. ..229/35 Honighaum ..229/ 35 2,660,364 1 1/1953 Ferguson ..229/35 3,246,829 4/1966 Sexton ..229/ 3 1 3,335,935 8/1967 McCallum ..2 29/3l Primary Examiner-James B. Marbert Attomey-Robert M. Dunning ABSTRACT A panel lock is provided for securing two paperboard panels in face contact. A notch is provided in the edge of one of the panels, and a generally T-shaped locking tongue is hinged to the other panel along a fold line substantially coinciding with the base of the notch. The locking tongue is folded through the notch so that the cross-bar of the T-shaped tongue lies against the surface of the notched panel most remote from the panel supporting the tongue.
2Claims,8Drawingfigures minnows 1m 3.682.369
sum 2 or 2 47 45 j 5 it? a *:1 HL I 13/ E I I h I 34 i 5/ i [ii 576?- 43 42 43 42 39/? r 4 44 I 44 57 55/ 46/) 25,45 [56 L40 IN ENTOR 4f 32 4] Fuss/v5 H. [SAKSON ATTORNEY PANEL LOCK This invention relates to an improvement in comer lock and deals particularly with a means of securing a pair of paperboard panel portions in face contact.
BACKGROUND OF THE INVENTION Various means have been provided for securing panels in face contact. For example, paperboard trays often include a bottom panel, side and end walls hingedly connected to the bottom panel, and comer flaps on certain of the walls which are folded into face contact with adjoining walls. The corner flaps may be glued together, or may be stitched or stapled together, but such an arrangement usually requires special equipment and is time consuming, and the resulting trays cannot be disconnected and flattened out if it is so desired.
In order to detachably connect the walls in erected condition, liner panels have often been hinged to the upper edges of two opposed walls, these linerpanels being folded over the corner flaps on the other panels and locked in position by a suitable means. Such a means is very effective but is of necessity more expensive as the area of the paperboard used is increased.
SUMMARY OF THE INVENTION It is an object of the present invention to provide an extremely simple means of locking panels in face contact. The edge of one of the overlapping panels is provided with a notch, and the edge of the other panel is provided with a generally T-shaped locking tongue. When the two panels are in face contact, the locking tongue may be swung down into the notch to lock the two panels from separation.
A feature of the present invention resides in the simplicity of the operation of setting up a tray or. the like. But providing comer flaps on two opposed panels which are foldable into face contact with the remaining two opposed panels, the walls may be locked in proper relation by merely swinging four locking tongues into corresponding notches. The comer flaps may be folded either inwardly or outwardly of the adjoining walls. The locking tongues may be provided on the comer flaps in which case the locking tongues are folded outwardly to project beyond the adjoining wall. Alternatively, the locking tongues may be on the tray wall, and the notches may be in the corner flaps so that the tray may be locked by swinging the locking tongues inwardly or outwardly, depending upon whether the comer flaps are outwardly or inwardly of the adjoining tray wall.
A feature of the present invention resides in the provision of a means of holding two panels in face contact which may, if desired, be disconnected at least a reasonable number of times. The locking tongues are distorted to some extent in the locking operation and will not function effectively if locked and unlocked continuously, but may be unlocked several times if desired.
These and other objects and novel features of the present invention will be more clearly and fully set forth in the following specification and claims.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a tray in set up form. FIG. 2 is an enlarged perspective view of one of the locks in locked position.
FIG. 3 is a perspective view of the inside of a portion of the tray showing one of the locks.
FIG. 4 is a diagrammatic view of the blank from which the tray is fonned.
FIG. 5 is an enlarged detail of the locking notches.
FIG. 6 is a perspective view of a corner of a modified form of a tray.
FIG. 7 is a perspective view of the tray corner shown in FIG. 5 in partially locked position.
FIG. 8 is a diagrammatic view of the blank from which the modified form of tray is formed.
DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention is shown as applied to a rectangular tray. Obviously, the tray may form one portion of a telescope container including two tray sections telescoped together. Furthermore, the trays could be hexagonal, octagonal, or even triangular if desired, it only being necessary that the tray structure include comer flaps which are folded in face contact with adjoining panels.
' The tray A shown in FIGS. 1 to 4 of the drawings is constructed of the blank indicated in FIG. 4. The tray is shown as including a rectangular bottom panel 10 which is foldably connected along parallel fold lines 11 to side walls 12. The bottom panel 10 is also connected along parallel fold lines 13 to end walls 14. The side walls 12 are provided as their end edges with corner flaps 15 which are connected thereto along parallel fold lines 16, these fold lines 16 being substantially extensions of the fold lines 13, but which may be slightly ofiset therefrom in order to allow for the thickness of the paperboard.
The upper edges of the end walls 14 are each provided with a pair of notches 17 in the areas thereof which normally overlap the comer flaps 15. As is indicated in FIG. 5 of the drawings, each notch 17 has a relatively wide inlet portion 19 connected by inwardly converging rounded cut lines 20 to a relatively narrower throat portion 21. Below the throat, the notch is relatively wider providing a wide base portion 22. Each comer flap 15 is provided with a generally T-shaped locking tongue. Each locking tongue 23 includes a relatively wide end portion 24 forming the cross bar of the T, and a relatively narrow stem portion 25, the stem portion 25 preferably being slightly wider than the throat 21 of the notch 17, and of substantially the same width as the base portion 22 of the notch 17. The cross bar of the T, or the end portion 24 is preferably wider than the base portion 22 of the notch. The length of the stem 25 is substantially the same as the thickness of the paperboard used. Normally the tray is made of corrugated paperboard.
In the arrangement illustrated in FIGS. 1 through 5, the tray is set up by folding the side walls 12 upwardly into parallel relation, and folding the comer flaps 15 to extend in opposed relation along the fold lines 13, as indicated in FIG. 1. The end walls 14 are then folded upwardly outwardly of the comer flaps l5, and the locking tongues 23 are folded downwardly and outwardly through the notches 17. Actually this may be done by folding the locking tongues downwardly, distorting portions of the tongues to pass through the notches, or the locking tongue may .be folded outwardly while the side walls are slightly less than right angles to the bottom panel, swinging the corner flaps downwardly into position against the bottom wall as the locking tongues are inserted.
The finished tray has the locks projecting outwardly therefrom as indicated in FIG. 1. If the tray is a portion of a telescope container, the ends of the tongues are bent down as the cover of the container is inserted. It is possible to arrange the structure so that the locking tongues of the bottom section project outwardly, and the locking tongues of the upper section project inwardly, concealing the ends of the tongues when the two sections are engaged.
A modified form of tray B is indicated in FIGS. 6, 7, and 8 of the drawings. As indicated in FIG. 8, the tray blank includes a rectangular bottom which is foldably connected along parallel fold lines 31 to side walls 32. The bottom panel 30 is also connected along parallel fold lines 33 to end walls 34. The end walls 34 are provided with corner flaps 35 which are connected to the end walls along parallel fold lines 36, these fold lines being substantially parallel to the fold lines 31, but offset slightly therefrom to allow for the thickness of the paperboard.
The edges 37 of the flaps 35 which are upper most in the set up form of the tray provided with notches 39 which may be identical to the notches 17 illustrated in FIG. 5 of the drawings, and which accordingly will not be described in detail. The edges 40 of the side walls 32 are provided with generally T-shaped locking tongues 41 which are positioned to register with the notches 37 in the corner flaps 35. Each locking tongue 41 includes a short stern portion 42 connected to the side wall 32 along a fold line 43, and connected to the cross bar member 44 along a fold line 45. A pair of generally parallel fold lines 46 extend across the cross bar 44 in substantial alignment with the side edges of the stem portion 42 of the locking tongue. The fold lines 46 form wings which fold out of the plane of the center portion of the cross bar 44 when the locking tongues are folded into the notches 39. This operation is illustrated in FIG. 7 of the drawings. It will be noted that in FIG. 7, the corner flaps 35 are folded outwardly of the side walls 32, and the locking tongues 31 fold outwardly, this arrangement is preferable in view of the fact that the corner flaps then wrap around the comers of the side walls and hold the side walls from bulging outwardly. However, if preferred, the corner flaps 35 could be arranged to fold inwardly of the side walls in which case the locking tongues 41 would be folded inwardly rather than outwardly.
I claim:
I. A corrugated paperboard tray including a bottom panel, side panels hinged to the edges of said bottom panel and extending upwardly therefrom and corner flaps hinged to an end of certain of said side panels and folded into face contact with the adjoining side panel, a lock including:
a notch in an edge of one of the overlapping panels at each comer of said bottom panel,
a generally T-shaped locking tongue hinged to the other of said overlapping panels along a fold line substantially coinciding with the base of the notch,
said locking tongue including a stern portion having parallel sides extending through said notch, said st mbei fal et th th thick ssof mi corriig ted gg aiz iai df an a ci'oss-bzi r portion engaging the surface of said one overlapping panel opposite that engaged by said other panel, and parallel fold lines extending across said crossbar portion from the stem portion to the end of said locking tongue portions, said parallel fold lines being substantially aligned with the parallel sides of said stem.
2. A corrugated paperboard tray including a bottom panel, side panels hinged to the edges of said bottom panel and extending upwardly therefrom and corner flaps hinged to an end of certain of said side panels and folded into face contact with the adjoining side panel, a lock including:
a notch in an edge of one of the overlapping panels at each comer of said bottom panel,
a generally T-shaped locking tongue hinged to the other of said overlapping panels along a fold line substantially coinciding with the base of the notch,
said locking tongue including a stem portion having parallel sides extending through said notch, said stem being of a length greater than the thickness of the corrugated paperboard, and a cross-bar portion engaging the surface of said one overlapping panel opposite that engaged by said other panel, said notch having a base portion substantially equal in width to said stem portion of said locking tongue and a throat portion above said base portion which is slightly narrower than the width of said stern portion.

Claims (2)

1. A corrugated paperboard tray including a bottom panel, side panels hinged to the edges of said bottom panel and extending upwardly therefrom and corner flaps hinged to an end of certain of said side panels and folded into face contact with the adjoining side panel, a lock including: a notch in an edge of one of the overlapping panels at each corner of said bottom panel, a generally T-shaped locking tongue hinged to the other of said overlapping panels along a fold line substantially coinciding with the base of the notch, said locking tongue including a stem portion having parallel sides extending through said notch, said stem being of a length greater than the thickness of the corrugated paperboard, and a cross-bar portion engaging the surface of said one overlapping panel opposite that engaged by said other panel, and parallel fold lines extending across said cross-bar portion from the stem portion to the end of said locking tongue portions, said parallel fold lines being substantially aligned with the parallel sides of said stem.
2. A corrugated paperboard tray including a bottom panel, side panels hinged to the edges of said bottom panel and extending upwardly therefrom and corner flaps hinged to an end of certain of said side panels and folded into face contact with the adjoining side panel, a lock including: a notch in an edge of one of the overlapping panels at each corner of said bottom panel, a generally T-shaped locking tongue hinged to the other of said overlapping panels along a fold line substantially coinciding with the base of the notch, said locking tongue including a stem portion having parallel sides extending through said notch, said stem being of a length greater than the thickness of the corrugated paperboard, and a cross-bar portion engaging the surface of said one overlapping panel opposite that engaged by said other panel, said notch having a base portion substantially equal in width to said stem portion of Said locking tongue and a throat portion above said base portion which is slightly narrower than the width of said stem portion.
US703A 1970-01-05 1970-01-05 Panel lock Expired - Lifetime US3682369A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US70370A 1970-01-05 1970-01-05

Publications (1)

Publication Number Publication Date
US3682369A true US3682369A (en) 1972-08-08

Family

ID=21692669

Family Applications (1)

Application Number Title Priority Date Filing Date
US703A Expired - Lifetime US3682369A (en) 1970-01-05 1970-01-05 Panel lock

Country Status (1)

Country Link
US (1) US3682369A (en)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3918630A (en) * 1975-02-05 1975-11-11 American Can Co Tray with reinforced corner construction and blank therefor
FR2363489A1 (en) * 1976-08-31 1978-03-31 Clergeau Papeteries Leon Single blank cardboard container - has double thickness ends retained by cut=out flap from handle aperture
US4139146A (en) * 1978-03-13 1979-02-13 Olinkraft, Inc. Shipping container
US4170301A (en) * 1977-10-19 1979-10-09 Inland Container Corporation Potted plant shipper
US4189088A (en) * 1978-10-05 1980-02-19 Westvaco Corporation Container with interlocking corners
FR2514726A1 (en) * 1981-10-16 1983-04-22 Weyerhaeuser Europ Et Cie Cart Folded cardboard container blank - has one sheet cut out and bent to form base and interlocking cover
JPS61160024U (en) * 1985-03-22 1986-10-03
GB2186865A (en) * 1986-02-19 1987-08-26 Bonar Presentation Products Li Boxes
US5016814A (en) * 1990-09-19 1991-05-21 Fullerton James T Collapsible box with improved corner locks
FR2676209A1 (en) * 1991-05-07 1992-11-13 Sical Packaging box, particularly for fruit and vegetables
GB2279643A (en) * 1993-07-03 1995-01-11 Uk Corrugated Ltd Transit & display tray
US5711478A (en) * 1996-02-23 1998-01-27 Coleman Containers Limited Paperboard top closure for a container
US5913474A (en) * 1997-10-10 1999-06-22 Merryland Products, Inc. Foldable tote box
US6474541B1 (en) * 1998-09-09 2002-11-05 Lawrence H. Y. Chu Foldable tote box
US20050211578A1 (en) * 2004-03-12 2005-09-29 Libit Jeanne E Cup carrier
EP1661814A1 (en) * 2004-11-26 2006-05-31 Unilever Plc Container
US20080087558A1 (en) * 2004-03-12 2008-04-17 Libit Sidney M Cup carrier
US20140099158A1 (en) * 2011-06-09 2014-04-10 Creax Projects N.V. Local Connection of Sheets onto One Another, Method and Apparatus for the Implementation Thereof
US9045252B2 (en) * 2008-02-04 2015-06-02 Concept Packaging Services Limited Boxes
US20190344923A1 (en) * 2015-10-02 2019-11-14 Innovative Design Concepts, Inc. Reverse tuck lock
US11161645B2 (en) 2013-04-30 2021-11-02 Ted E. Wiley Pallet container
US11440282B2 (en) 2015-02-23 2022-09-13 Innovative Design Concepts, Inc. Instant set-up bulk container

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1724589A (en) * 1928-03-28 1929-08-13 Harry H Honigbaum Container
US2660364A (en) * 1951-05-12 1953-11-24 Anderson Box Company Corner lock for corrugated fiberboard boxes
US2660363A (en) * 1949-04-11 1953-11-24 Crook Paper Box Company Collapsible box having interlocking end walls
US3246829A (en) * 1962-12-28 1966-04-19 Int Paper Co Foldable boxes with interlocking cover structure
US3335935A (en) * 1964-09-21 1967-08-15 Bathurst Paper Ltd Gusset corner folding box

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1724589A (en) * 1928-03-28 1929-08-13 Harry H Honigbaum Container
US2660363A (en) * 1949-04-11 1953-11-24 Crook Paper Box Company Collapsible box having interlocking end walls
US2660364A (en) * 1951-05-12 1953-11-24 Anderson Box Company Corner lock for corrugated fiberboard boxes
US3246829A (en) * 1962-12-28 1966-04-19 Int Paper Co Foldable boxes with interlocking cover structure
US3335935A (en) * 1964-09-21 1967-08-15 Bathurst Paper Ltd Gusset corner folding box

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3918630A (en) * 1975-02-05 1975-11-11 American Can Co Tray with reinforced corner construction and blank therefor
FR2363489A1 (en) * 1976-08-31 1978-03-31 Clergeau Papeteries Leon Single blank cardboard container - has double thickness ends retained by cut=out flap from handle aperture
US4170301A (en) * 1977-10-19 1979-10-09 Inland Container Corporation Potted plant shipper
US4139146A (en) * 1978-03-13 1979-02-13 Olinkraft, Inc. Shipping container
US4189088A (en) * 1978-10-05 1980-02-19 Westvaco Corporation Container with interlocking corners
FR2514726A1 (en) * 1981-10-16 1983-04-22 Weyerhaeuser Europ Et Cie Cart Folded cardboard container blank - has one sheet cut out and bent to form base and interlocking cover
JPS61160024U (en) * 1985-03-22 1986-10-03
GB2186865A (en) * 1986-02-19 1987-08-26 Bonar Presentation Products Li Boxes
US5016814A (en) * 1990-09-19 1991-05-21 Fullerton James T Collapsible box with improved corner locks
FR2676209A1 (en) * 1991-05-07 1992-11-13 Sical Packaging box, particularly for fruit and vegetables
GB2279643A (en) * 1993-07-03 1995-01-11 Uk Corrugated Ltd Transit & display tray
US5711478A (en) * 1996-02-23 1998-01-27 Coleman Containers Limited Paperboard top closure for a container
US5913474A (en) * 1997-10-10 1999-06-22 Merryland Products, Inc. Foldable tote box
US20030094484A1 (en) * 1998-09-09 2003-05-22 Merryland Products, Inc. Foldable tote box
US6474541B1 (en) * 1998-09-09 2002-11-05 Lawrence H. Y. Chu Foldable tote box
US20030094483A1 (en) * 1998-09-09 2003-05-22 Merryland Products, Inc. Foldable tote box
US6651875B2 (en) * 1998-09-09 2003-11-25 Merryland Products, Inc. Foldable tote box
US6824042B2 (en) * 1998-09-09 2004-11-30 Merryland Products, Inc. Foldable tote box
US8087511B2 (en) 2004-03-12 2012-01-03 Sidney M. Libit Cup carrier
US20080087558A1 (en) * 2004-03-12 2008-04-17 Libit Sidney M Cup carrier
US20050211578A1 (en) * 2004-03-12 2005-09-29 Libit Jeanne E Cup carrier
EP1661814A1 (en) * 2004-11-26 2006-05-31 Unilever Plc Container
AU2005237171B2 (en) * 2004-11-26 2009-04-23 Unilever Ip Holdings B.V. Container
US9045252B2 (en) * 2008-02-04 2015-06-02 Concept Packaging Services Limited Boxes
US20140099158A1 (en) * 2011-06-09 2014-04-10 Creax Projects N.V. Local Connection of Sheets onto One Another, Method and Apparatus for the Implementation Thereof
US9797424B2 (en) * 2011-06-09 2017-10-24 Creax Projects N.V. Local connection of sheets onto one another, method and apparatus for the implementation thereof
US11161645B2 (en) 2013-04-30 2021-11-02 Ted E. Wiley Pallet container
US11440282B2 (en) 2015-02-23 2022-09-13 Innovative Design Concepts, Inc. Instant set-up bulk container
US20190344923A1 (en) * 2015-10-02 2019-11-14 Innovative Design Concepts, Inc. Reverse tuck lock
US10954024B2 (en) * 2015-10-02 2021-03-23 Innovative Design Concepts, Inc. Reverse tuck lock

Similar Documents

Publication Publication Date Title
US3682369A (en) Panel lock
US3027063A (en) Diagonal creased cartons
US3949931A (en) Tamper-proof container
US3137435A (en) Sliced meat package
US2913161A (en) Plant package
US5163609A (en) Produce container
US3655112A (en) Protective corner pad
US5402929A (en) Container tray-cover corner closure arrangement
US5016814A (en) Collapsible box with improved corner locks
US4134496A (en) Device for protecting a corner of an article
US3844473A (en) Returnable beverage case
US4248350A (en) Corner post with integral lock
US4257550A (en) Pilfer-proof container
US2727675A (en) Shipping container
US4470540A (en) Open top set up container
US3616989A (en) Telescoping carton assembly
US4320839A (en) Packaging insert
US2226601A (en) Protector
US4201330A (en) Hinged cover container with hand hole lock
US3207414A (en) Frozen poultry containers
US5305950A (en) Lock for carton bottom
US3283991A (en) Reclosable cartons
US4017017A (en) Corrugated luggage
US4129247A (en) Die-cut carton with built-in fillers
US3251532A (en) Expandable carton

Legal Events

Date Code Title Description
AS Assignment

Owner name: STONE BROWN PAPER, INC., A CORP. OF DE.

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CHAMPION INTERNATIONAL CORPORATION, A CORP.OF N.Y.;REEL/FRAME:004680/0410

Effective date: 19860707

AS Assignment

Owner name: STONE CONTAINER CORPORATION

Free format text: MERGER;ASSIGNORS:STONE CONTAINER CORPORATION, A CORP. OF IL, (MERGED INTO);S.C.C. MERGER CORPORATION, A CORP. OF DE, (CHANGED TO);REEL/FRAME:004893/0153

Effective date: 19870515

Owner name: STONE CONTAINER CORPORATION

Free format text: MERGER;ASSIGNOR:STONE BROWN PAPERS, INC., A DE CORP., (MERGED INTO);REEL/FRAME:004893/0167

Effective date: 19861222