|Publication number||US3871572 A|
|Publication date||Mar 18, 1975|
|Filing date||Jan 21, 1974|
|Priority date||Jan 21, 1974|
|Publication number||US 3871572 A, US 3871572A, US-A-3871572, US3871572 A, US3871572A|
|Inventors||Skaggs Boyd T|
|Original Assignee||Container Corp|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (4), Referenced by (9), Classifications (4), Legal Events (2)|
|External Links: USPTO, USPTO Assignment, Espacenet|
United States Patent Skaggs [451 Mar. 18, 1975 ANGLE LOCK END FOLDER  Inventor: Boyd T. Skaggs, Ravenna, Ohio  Assignee: Container Corporation of America,
22 Filed: Jan.2l, 1974 211 Appl.No.:434,883
Primary ExaminerEdward J. McCarthy Attorney, Agent, or FirmCarpenter, Ostis & Lindberg  ABSTRACT Amailing folder for a heavy object such as a book of great thickness is formed from a cut and scored blank of paper board folded into position to provide a pair of opposite protective cells for ends of the book. The folder comprises a plurality of rectangularly shaped panels connected to define a tube, and cell forming elements extend from opposite ends of a main panel thereof and are foldably connected to each other and to-the main panel to enclose opposite ends of the book. Each of the cell forming elements comprises first and second spaced outer flap elements foldable to an inclined upright position with an inner flap element foldably connected to the first and second flap elements at a distal flap edge thereof and foldable to a vertical position with the distal edge bearing against the main panel. A central reinforcing element extends between the first and second outer flap elements and is foldably connected at its ends to the main panel and the inner flap element, the central element having first and second portions additionally defined by spaced edges in the first and second outer flap elements and in the main panel, the central reinforcing element being folded upon folding of the first and second outer flap elements to a position where a portion thereof is braced against the first and second spaced flap elements. Closure elements extend from a top panel of the tube and are foldable to a position over the protective cell forming elements to provide a pair of oppositve protective cells for the book contained within the folder.
1 Claim, 5 Drawing Figures PATENTEBHAR I 81975 FIGJ FIGZ
ANGLE LOCK END FOLDER BACKGROUND OF THE INVENTION Class 229-40 Ringholz Class 229-40 Partain et al The structure according to the present invention constitutes an improvement over the aforesaid prior arts patents in that a book of relatively great thickness can be more efficiently and properly protected because of the particular configuration of protective cells provide for opposite ends of the book. The cells are characterized by spaced angularly positioned elements causing a vertical element to bear against an edge of the book, the angularlypositioned elements being maintained in position by a central element which is contacted by closure elements for the protective cell forming elements to provide a cell of the opposite protective cells.
THE DRAWINGS FIG. 1 is a perspective view showing details of an improved mailing folder constructed according to the teachings of thepresent invention, certain parts being broken away;
FIG. 2 is a plan view of a cut and scored blank of paper board or the like for constructing the folder seen in FIG. 1;
FIG. 3 is a plan view looking downward and taken along a plane beneath the top cover panel of the folder;
FIG. 4 is a vertical sectional view taken substantially along the line 4--4 of FIG. 3 looking in the direction of the arrows; and
FIG. 5 is a view looking in the direction of the arrows 55 of FIG. 4, certain parts are being broken away to show details of construction.
The improved mailing folder according to the present invention is denoted generally by the reference numeral and is formed from a cut and scored blank 10A seen in FIG. 2. As seen in FIG. 2, blank 10A comprises rectangularly shaped main, first side, top and opposite side panels denoted respectively by the reference numerals ll, 12, 13 and 14, these panels being foldably connected together along fold lines 16 and forming a tube. Closure flap 17 is foldably connected to opposite side panel 14 along a fold line 18, and is connected to the main panel 11, there being a lift tab 19 foldably connected to closure flap 17 along a score line 21.
Protective cell forming elements are referred to generally by reference numeral 20, and extended from opposite ends of the main panel 11, and are foldably connected to each other and to the main panel 11 and fold able to positions to enclose opposite ends of a book, not shown. Protective cell forming elements 20 comprise respective spaced first and second flanking flap elements 22 and 23 foldably connected to the main panel 11 along a fold line 24. An inner flap element 26 is foldably connected to the first and second flanking flap elements 22 and 23 at a distal edge 27 thereof, and is foldable to a vertical position with the distal edge of inner flap element 26 bearing against main panel 11. In the folding of the inner flap element 26 to the vertical position the first and second flap elements 22 and 23 adopt an inclined upright position as seen more clearly in FIGS. 1 and 4.
A central reinforcing element indicated generally by reference numeral 25 extends between the first and second flap elements 22 and 23 and is foldably connected at its inner end along a score line 28 to the main panel 11 and to the inner flap element 26 along score line 27. Central reinforcing element 25 comprises first and second portions referred to respectively by reference numerals 29 and 31, these portions being foldably connected alonga fold line 33. Central reinforcing element 25 is additionally defined by partly converging spaced edges 36 in the first and second outer flap ele ments 22 and 23, and by spaced edges 37. In the forming of the central reinforcing element 25, portions of the outer flap elements 22 and 23 cut out as seen particularly in FIG. 2, and provide shoulders 25A and 25B. Shoulder 25A is formed in central element 25, and shoulder 25B is formed in flap elements 22 and 23. In the folding of the protective cell forming element 20 central reinforcing element 25 is caused to bear against the first and second spaced outer flap elements 22 and 23 as seen particularly in FIGS. 1 and 4.
In the folding of the central reinforcing element 25, element 29 thereof adopts an horizontal position as seen in FIGS. 1 and 4. Top panel 13 is provided with closure elements 41 foldably connected to the top panel 13 along a fold line 42, and a closure element 43 foldably connected to closure element 41 along a fold line 44. When the closure elements 41 and 43 and brought into the closing position flap 41 bears against the fold line 33 between reinforcing element 25 and portion 29.
When the folding and erection operation is completed the shoulders 25A on central element 25 are in abutting relationship with the underside of flanking elements 22 and 23, element 25 adopting the inclined position shown and providing an effective cell brace with elements 22 and 23.
1. A mailing folder for a heavy object such as a book of great thickness, said folder being formed from a cut and scored blank of paper board or the like and folded into position so as to provide opposed and braced end protective cells for opposite ends of said book, said folder comprising:
a. rectangularly shaped main, first side, top and opposite side panel connected along fold lines and folded to define a tube;
b. protective cell forming elements extending from opposed ends of said main panel foldably connected to each other and to said main panel and foldable to position to enclose opposite ends of said book, said elements each comprising:
i. first and second spaced flanking flap elements foldably connected to said main panel and foldable to an inclined upright position;
ii. an inner flap element foldably connected to said flanking flap and foldable to a vertical position with the distal edge thereof bearing against said main panel;
v. said central reinforcing element being folded upon folding of said first and second flanking flap elements to an inclined position.
c. closure elements extending from said top panel and foldable to a position over said protective cell forming elements to provide a pair of opposed protective cells.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US3399821 *||Jul 25, 1967||Sep 3, 1968||West Virginia Pulp & Paper Co||Book wrapper|
|US3666168 *||Jun 29, 1970||May 30, 1972||Stone Container Corp||Paperboard cushioning cell construction|
|US3722668 *||Feb 22, 1972||Mar 27, 1973||Container Corp||Cushioned shipping folder|
|US3792811 *||Mar 20, 1972||Feb 19, 1974||Container Corp||Cushioned shipping folder|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3985230 *||Jul 24, 1975||Oct 12, 1976||Stone Container Corporation||Carton|
|US4134497 *||Aug 10, 1977||Jan 16, 1979||Fidelity Container Corp.||Shock absorbing carton insert|
|US4300679 *||Aug 27, 1980||Nov 17, 1981||Container Corporation Of America||Self locking folder|
|US4574998 *||Aug 1, 1984||Mar 11, 1986||Kohler Co.||Open-ended carton and carton blank|
|US5088601 *||Aug 5, 1991||Feb 18, 1992||At&T Bell Laboratories||Circuit board shipping carton|
|US5096060 *||Dec 20, 1990||Mar 17, 1992||Vavra Paul P||Packaging system for a basin, lavatory or sink|
|US5183155 *||Dec 20, 1990||Feb 2, 1993||Vavra Paul P||Packaging system for a toilet water tank and cover|
|US6622860 *||Jul 25, 2001||Sep 23, 2003||Dell Products Lp||Universal pack apparatus and method|
|USRE30163 *||Apr 20, 1978||Dec 11, 1979||Stone Container Corporation||Carton|
|Nov 25, 1992||AS||Assignment|
Owner name: BANKERS TRUST COMPANY, NEW YORK
Free format text: AMENDMENT TO SECURITY AGREEMENT;ASSIGNOR:CONTAINER CORPORATION OF AMERICA;REEL/FRAME:006401/0025
Effective date: 19920826
|Nov 26, 1986||AS||Assignment|
Owner name: BANK OF NOVA SCOTIA, THE
Owner name: BANKERS TRUST COMPANY, 280 PARK AVENUE, NEW YORK,
Owner name: CHEMICAL BANK
Owner name: MANUFACTURERS HANOVER TRUST COMPANY
Owner name: NATIONAL WESTMINSTER BANK PLC
Free format text: SECURITY INTEREST;ASSIGNOR:CONTAINER CORPORATION OF AMERICA;REEL/FRAME:004858/0656
Effective date: 19860930