US2444722A - End closure for tubular containers - Google Patents

End closure for tubular containers Download PDF

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Publication number
US2444722A
US2444722A US576662A US57666245A US2444722A US 2444722 A US2444722 A US 2444722A US 576662 A US576662 A US 576662A US 57666245 A US57666245 A US 57666245A US 2444722 A US2444722 A US 2444722A
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tubular
closure
container
end closure
containers
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Expired - Lifetime
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US576662A
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Bogoslowsky Boris
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    • 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/04—Articles or materials wholly enclosed in single sheets or wrapper blanks
    • B65D75/06—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks initially folded to form tubes
    • 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/40—Packages formed by enclosing successive articles, or increments of material, in webs, e.g. folded or tubular webs, or by subdividing tubes filled with liquid, semi-liquid, or plastic materials
    • B65D75/44—Individual packages cut from webs or tubes

Definitions

  • Figures 1 and 2 are top plan and front elevation views, respectively, of a tubular blank
  • Figures 3 and 4 are similar views of the tubular blank after the first stage of the closure forming operation.
  • Figures 5 and 6 are similar views after completion of the closure.
  • Figure 7 is a perspective view of a tubular blank having a closure formed at one end and filled ready for closure of the other end.
  • Figure 8 is a perspective view of a completed container having closures at both ends.
  • tubular blank I of any desired length and diameter, depending on the size of the container to be formed.
  • tubular blanks may be formed from fiat sheet material, either by convolute or spiral winding, or may. be formed by extrusion of suitable plastic materials.
  • thermoplastic materials having thermoplastic or heat sealing characteristics are suitable for the purpose, including many of the plastic films or sheets now available in the commercial market.
  • a thermoplastic material such as polystyrene is particularly useful.
  • Metal foil coated or laminated with thermoplastic materials is also useful for this purpose.
  • aluminum foil coated on both sides with Vinylite (vinyl ester resin) is an excellent material for use in containers for liquids, or in containers for dry materials which must be protected from moisture.
  • Vinylite vinyl ester resin
  • Other thermoplastic materials or materials coated or laminated with thermoplastic materials will occur to those skilled in the art.
  • thermoplastic or heat sealing characteristics that it be reasonably strong and flexible, and capable of being bent or folded without cracking.
  • the closure described may be used to provide a leak proof seal for a tubular container
  • the closure has important advantages in that it is not only possible to form such closures without distorting the tubular form of the container, but also the radial pleats reinforce the ends of the container and serve to retain the original tubular form.
  • the advantages of the integral structur are obvious.
  • a hermetically sealed container may be formed which may be used as a substitute for a glass ampule for the packaging of pharmaceuticals and chemicals.
  • a hermetically sealed container may be used for packaging cigars or coffee or other similar articles or commodities in which it is desirable to preserve moisture content or flavor constituents.
  • An end closure for a container having a tubular body portion said closure comprising a plurality of spaced shoulder portions extending inwardl from said body portion to the center thereof and alternating with a plurality of spaced radial pleats extending outwardly from the center thereof, the central portions of said pleats. containing all of the end edges of said tubular blank, being flattened and heat sealed in the form of a disk spaced from said shoulder portions and lying in a plane substantially perpendicular to the axis of said tubular body portion,
  • An integral tubular container formed entirely from a single tubular blank, comprising a tubular body portion terminating at each end in a similar end closure, each of said end closures comprising a plurality of spaced shoulder portions extending inwardly from said body portion to the center thereof and alternating with a plurality of spaced radial pleats extending outwardly from the center thereof, the central portions of said pleats, containing all of the end edges of said tubular blank, being flattened and heat sealed in the form of a disk spaced from said shoulder portions and lying in a plane substantially perpendicular to the axis of said tubular body portion, said pleats serving to reinforce the ends of said container and to maintain the tubular shape of the body portion of said container.

Description

July 6, 1948. B. BOGOSLOWSKY END CLOSURE FOR TUBULAR CONTAINERS Filed Feb. 7, 1945 'atented July 6, 1948 END CLOSURE FOR TUBULAR CONTAINERS Boris Bogoslowsky, Jackson Heights, N. Y. Application February 7, 1945, Serial No. 576,662
2 Claims. (Cl. 229-55) This invention relates to end closures for tubular containers.
It is an object of the invention to provide an end closure for a tubular container, which said closure is formed by proper manipulation of the tubular material, whereby the closure is integral with the tubular material. It is a further object of the invention to provide a closure which may be formed entirely by external manipulation. whereby said closure may be formed and sealed after said container has been filled.
Other objects and advantages of the invention will appear hereinafter.
A preferred embodiment of the invention selected for purposes of illustration is shown in the accompanying drawings, in which,
Figures 1 and 2 are top plan and front elevation views, respectively, of a tubular blank,
Figures 3 and 4 are similar views of the tubular blank after the first stage of the closure forming operation.
Figures 5 and 6 are similar views after completion of the closure.
Figure 7 is a perspective view of a tubular blank having a closure formed at one end and filled ready for closure of the other end.
Figure 8 is a perspective view of a completed container having closures at both ends.
In making a tubular container having a closure or closures according to the present invention, I start with a tubular blank I of any desired length and diameter, depending on the size of the container to be formed. Such tubular blanks may be formed from fiat sheet material, either by convolute or spiral winding, or may. be formed by extrusion of suitable plastic materials.
Many different types of materials having thermoplastic or heat sealing characteristics are suitable for the purpose, including many of the plastic films or sheets now available in the commercial market. For example, in the case of a container for liquids, a thermoplastic material such as polystyrene is particularly useful. Metal foil coated or laminated with thermoplastic materials is also useful for this purpose. For example, aluminum foil coated on both sides with Vinylite (vinyl ester resin) is an excellent material for use in containers for liquids, or in containers for dry materials which must be protected from moisture. Other thermoplastic materials or materials coated or laminated with thermoplastic materials will occur to those skilled in the art. The selection of a particular material or combination of materials will depend on the nature of the product to be contained, the important requirements as far as the present invention is concerned being that the material shall have thermoplastic or heat sealing characteristics, that it be reasonably strong and flexible, and capable of being bent or folded without cracking.
According to the present inventionI first fold spaced portions of an open end of the tubular blank I inwardly toward the center of the blank to form inwardly folded shoulder portions 2 which meet at the center, and at the same time I fold the portions of said tubular blank lying between said inwardly folded shoulder portions to form a plurality of spaced pleats 3 projecting vertically from said inwardly folded portions and extending radially outwardly from the center. I then subject the central end portions of said pleats to axial pressure to flatten the same to a substantial disk shape, and I subject said disk 4 to heat to heat seal the thermoplastic material therein.
In addition to the fact that the closure described may be used to provide a leak proof seal for a tubular container, the closure has important advantages in that it is not only possible to form such closures without distorting the tubular form of the container, but also the radial pleats reinforce the ends of the container and serve to retain the original tubular form. The advantages of the integral structur are obvious.
Such containers are useful for many purposes. For example, by the selection of suitable materials, a hermetically sealed container may be formed which may be used as a substitute for a glass ampule for the packaging of pharmaceuticals and chemicals. Likewise such containers may be used for packaging cigars or coffee or other similar articles or commodities in which it is desirable to preserve moisture content or flavor constituents.
It will be understood that the invention may be variously modified and embodied within the scope of the subjoined claims.
I claim as my invention:
1. An end closure for a container having a tubular body portion, said closure comprising a plurality of spaced shoulder portions extending inwardl from said body portion to the center thereof and alternating with a plurality of spaced radial pleats extending outwardly from the center thereof, the central portions of said pleats. containing all of the end edges of said tubular blank, being flattened and heat sealed in the form of a disk spaced from said shoulder portions and lying in a plane substantially perpendicular to the axis of said tubular body portion,
2. An integral tubular container formed entirely from a single tubular blank, comprising a tubular body portion terminating at each end in a similar end closure, each of said end closures comprising a plurality of spaced shoulder portions extending inwardly from said body portion to the center thereof and alternating with a plurality of spaced radial pleats extending outwardly from the center thereof, the central portions of said pleats, containing all of the end edges of said tubular blank, being flattened and heat sealed in the form of a disk spaced from said shoulder portions and lying in a plane substantially perpendicular to the axis of said tubular body portion, said pleats serving to reinforce the ends of said container and to maintain the tubular shape of the body portion of said container.
BORIS BOGOSLOWSKY.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS
US576662A 1945-02-07 1945-02-07 End closure for tubular containers Expired - Lifetime US2444722A (en)

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US576662A US2444722A (en) 1945-02-07 1945-02-07 End closure for tubular containers

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Application Number Priority Date Filing Date Title
US576662A US2444722A (en) 1945-02-07 1945-02-07 End closure for tubular containers

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3051368A (en) * 1958-11-28 1962-08-28 Schneider Dispensing container
US3055302A (en) * 1960-04-15 1962-09-25 Remington Arms Co Inc Shotshell end closure and method of forming
US3157137A (en) * 1963-04-01 1964-11-17 Olin Mathieson Expanding point bullet
US3207274A (en) * 1962-11-13 1965-09-21 Hawley Products Co Coverings for shells and the like
US3672301A (en) * 1969-12-31 1972-06-27 Aai Corp Cartridge
US20050173504A1 (en) * 2004-02-06 2005-08-11 Erdie Jason S. End cap for paper tube

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US177024A (en) * 1876-05-02 smith
US1058523A (en) * 1911-10-13 1913-04-08 Henry Auchu Shell-closing machine.
US1123976A (en) * 1911-10-13 1915-01-05 Henry Auchu Method of producing closures on shells.
US1125644A (en) * 1915-01-19 H S Brewington Paper container.
US1362090A (en) * 1919-03-22 1920-12-14 Drysdale Henry Container or box
US1397756A (en) * 1918-11-20 1921-11-22 Drysdale Ienry Paper container
US1658543A (en) * 1927-06-06 1928-02-07 Woodford Gregory Smith Cylinder-forming machine
US1904365A (en) * 1931-02-06 1933-04-18 William J Geist Collapsible receptacle
US2074824A (en) * 1935-03-16 1937-03-23 Karlsson-Ygger Albert Container
US2242829A (en) * 1938-04-16 1941-05-20 Sandusky Cooperage & Lumber Co Container

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US177024A (en) * 1876-05-02 smith
US1125644A (en) * 1915-01-19 H S Brewington Paper container.
US1058523A (en) * 1911-10-13 1913-04-08 Henry Auchu Shell-closing machine.
US1123976A (en) * 1911-10-13 1915-01-05 Henry Auchu Method of producing closures on shells.
US1397756A (en) * 1918-11-20 1921-11-22 Drysdale Ienry Paper container
US1362090A (en) * 1919-03-22 1920-12-14 Drysdale Henry Container or box
US1658543A (en) * 1927-06-06 1928-02-07 Woodford Gregory Smith Cylinder-forming machine
US1904365A (en) * 1931-02-06 1933-04-18 William J Geist Collapsible receptacle
US2074824A (en) * 1935-03-16 1937-03-23 Karlsson-Ygger Albert Container
US2242829A (en) * 1938-04-16 1941-05-20 Sandusky Cooperage & Lumber Co Container

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3051368A (en) * 1958-11-28 1962-08-28 Schneider Dispensing container
US3055302A (en) * 1960-04-15 1962-09-25 Remington Arms Co Inc Shotshell end closure and method of forming
US3207274A (en) * 1962-11-13 1965-09-21 Hawley Products Co Coverings for shells and the like
US3157137A (en) * 1963-04-01 1964-11-17 Olin Mathieson Expanding point bullet
US3672301A (en) * 1969-12-31 1972-06-27 Aai Corp Cartridge
US20050173504A1 (en) * 2004-02-06 2005-08-11 Erdie Jason S. End cap for paper tube
US7296729B2 (en) * 2004-02-06 2007-11-20 Erdie End Caps, Llc End cap for paper tube

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