DRUM-LIKE CONTAINER OF TELESCOPING TYPE SET-UP FROM FOLDED FLATS OF SHEET MATERIAL

• US 3,670,946 A
• Filed: 02/16/1971
• Issued: 06/20/1972
• Est. Priority Date: 02/16/1971
• Status: Expired due to Term

• Current Assignee: Thomas E. Croley
• Original Assignee: Thomas E. Croley
• Inventors: Croley, Thomas E.
• Primary Examiner(s): Moorhead, Davis T.
• Application Number:
  US05/115,312
• Time in Patent Office: 490 Days
• Field of Search: 229/4.5,5.5,5.6,5.7,5.8
• US Class Current: 229/4.5
• CPC Class Codes: B65D 5/12 with end closures formed separately from tubular body
• CPC Class Codes: B65D 5/68 Telescope flanged lids

Abstract

A drum-like container comprising upper and lower bodies of substantially drum-like form telescopically interfitting. Each of the bodies is set up from one or more flat blanks of sheet material which is scored to provide a plurality of panels connected together at scored vertical fold lines. One horizontal edge of a blank for the upper or lower body is turned inwardly to provide an axially inwardly flange providing a shoulder at its inner extremity. The respective ends of the blank are laterally overlapped and secured together at a vertical seam. The blank is folded flat about two of the vertical fold lines to provide superimposed sections, each section consisting of a plurality of connected vertical panels. This folded and collapsed flat can be expanded into polygonal tubular form with upper and lower open ends and with the inwardly disposed shoulder at one end. To maintain the tubular form, a rigid disc of proper diameter is moved axially into and tightly fitted therein in contact with the shoulder.

Claims

1. A drum-like container of the telescoping type including an inner tubular body with the outer body slideably telescoping over the inner body, each of said tubular bodies being of polygonal transverse cross-section and consisting of a plurality of panels joined at vertical fold lines, each of said tubular bodies being axially inwardly turned at one end to provide an inner shoulder spaced axially inwardly from that end, and a substantially rigid expanding member inserted in that end of the body in engagement with said shoulder and having a peripheral edge in engagement with the inner surfaces of the body panels to expand the end of the tubular body and maintain it in expanded form.

2. A drum-like container according to claim 1 in which the peripheral edge of the expanding member is of an extent substantially equal to that of the inner surface of said body.

3. A drum-like container according to claim 1 in which the outer peripheral surface of the inner body is of substantially the same extent as that of the inner peripheral surface of the outer body so that the inner panels are of less width then the outer panels and are disposed in flat contact therewith.

4. A drum-like container according to claim 3 in which the expanding member is a disc with a circular edge and its circumference is equal to the peripheral extent of the inner surface of the tubular body.

5. A drum-like container according to claim 4 in which the outer body is a base and has its expanding disc resting on its shoulder, the inner body is a liner and has a lower end resting on the disc and an upper end projecting from the upper end of the base, and a cap body telescoping over the upwardly projecting end of the liner, said cap body comprising a polygonal tube of complemental cross-section to the liner and having its upper end turned inwardly to provide a shoulder spaced axially inwardly, and an expanding disc inserted in said end to expand it and engage said shoulder, said disc being of a circumference corresponding substantially to the peripheral extent of the inner surface of said cap body, the upper end of the liner contacting said disc.

6. A drum-like container according to claim 3 in which each of the tubular bodies is formed of a sheet of material scored at intervals to provide said panels, the shoulder at the one end of each tubular body being provided by a flange along one of its horizontal edges which is turned inwardly, the respective ends of the sheet being laterally overlapped and secured together to provide a vertical seam.

7. A group of knocked-down container parts to be set up into a container of the telescoping type comprising at least two flats, each of the flats comprising a blank of material having vertical fold lines at intervals therealong to provide a plurality of vertical panels, said blank having its ends secured together and being folded about two of the vertical fold lines to provide superimposed flat sections, each section consisting of a plurality of connected vertical panels, said blank having a horizontal edge turned inwardly to provide an inwardly extending flange with a shoulder at its inner extremity, each of the flats being adapted to be expanded into polygonal tubular form and to be telescopically engaged, the one flat having panels of less width then the other so that the peripheral extent of the one tube at its inner surface is of the same extent as the peripheral extent of the outer surface of the other tube inserted therein.

8. The combination of claim 7 including a member for expanding at least one of said polygonal tubular members to receive the other, said expanding member having a peripheral edge for engaging the inner surfaces of the panels of said tubular member in which it is adapted to be inserted into axial engagement with said shoulder, said member being of a peripheral extent corresponding to that of the peripheral extent of the inner surface of the polygonal member in which it is inserted.

9. The combination of claim 8 in which said expanding member is in the form of a substantially rigid disc having a circular edge.

10. The combination of claim 9 in which three of said flats are provided including a base flat, a liner flat and a cap flat, the base flat and cap flat having panels of the same width and the liner flat having panels of less width, so that it will telescopically fit within and be complemental to the base and cap, one of said discs being provided for expanding each of the cap and base flats.