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US3800994A - Horizontal heat-seal liner for fibre drums - Google Patents

Horizontal heat-seal liner for fibre drums Download PDF

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Publication number
US3800994A
US3800994A US00282511A US3800994DA US3800994A US 3800994 A US3800994 A US 3800994A US 00282511 A US00282511 A US 00282511A US 3800994D A US3800994D A US 3800994DA US 3800994 A US3800994 A US 3800994A
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Prior art keywords
container
liner
tubular body
bottom member
fibre
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US00282511A
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P Bowen
L Evans
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Continental Can Co Inc
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Continental Can Co Inc
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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
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/14—Linings or internal coatings
    • B65D25/16—Loose, or loosely-attached, linings

Definitions

  • ABSTRACT A fibre container having a tubular body, a bottom member closing one end and a metal chime securing the bottom member to said tubular body, said container having an improved tubular flexible liner therein.
  • the flexible liner may comprise a thin film of a polymeric material having the desired barrier or protection characteristics for the bulk material to be stored, and is divided into two portions by a horizontal heat seal. An upper portion provides an inner container for the bulk material, while the lower portion is integrally connected to the bottom of the fibre container through an interlock between the metal chime and the bottom member.
  • This invention relates to plastic lined containers. More particularly, it relates to plastic lined fibre drums and a method for their manufacture whereby liquids, semi-liquids, and bulk materials can be effectively stored or transported therein.
  • Fibre drums having plastic liners are desirable for packaging many materials because they are relatively inexpensive to manufacture, are of a relatively light weight, and usually have substantial vertical stacking strength.
  • Containers of this nature which are currently being manufactured may include a molded liner which is integrally and mechanically interlocked with a fibre drum such as that illustrated by U.S. Pat. No. 3,158,311.
  • the liner is specially manufactured for use .with the drum and thus requires specific methods and apparatus for its manufacture.
  • some liquids, semi-liquids or bulk materials are merely placed in a loose flexible bag within a fibre drum.
  • the material is sealed at its upper end and is ready for transport or storage.
  • This design although relatively expensive, is troublesome to the user of the package in that he must separately purchase two components, eg the fibre drum and the liner and assemble the same prior to filling thereof.
  • the drum is to be emptied, it is merely turned up-side-down and the liner flows out of the drum with the material therein, the liner, having to be subsequently separated from such material.
  • the invention in an effort to improve lined containers, includes a fibre drum having a bottom member and a thin tubular liner locked thereto by a chime.
  • the liner is divided into an upper container portion and a lower portion which is mechanically and frictionally interlockedto the bottom member, the two portions being separated by a horizontal seal.
  • FIG] is a perspective view of a preferred embodiment of the instant invention.
  • FIG. 2 is a side elevational view of a preferred embodiment of the inner liner of the instant invention.
  • FIG. 3 is an elevational view taken in section through a vertical section line of the preferred embodiment of this invention.
  • the preferred embodiment of my invention may be represented by a fibre drum container 10 having a flexible bag 40 therein which contains a bulk material to be stored or transported.
  • This preferred embodiment is very similar in external appearance to the conventional fibre drum and includes a tubular body 12 preferably formed of fibre or container board which is convolutely wound about a mandrel with appropriate adhesives being placed between the various layers thereof, such being a conventional manner of manufacture of the tubular body 12.
  • a metal chime 16 which is utilized to re-enforce the lower most portion of the tubular body and to engage and mechanically interlock a;b ottom member or header 14 thereto in a manner subsequently to be described.
  • the upper portion of the tubular body 12 also carries a metal chime 30 whidh is clamped to the container board by way of a groove 34, with the upper portion of the chime and the extremity of the tubular body 12 being curled in a manner more thoroughly depicted in FIG. 3.
  • a tubular bag 40 having a closed bottom end at 44 and which is adapted to receive a bulk material, liquid or solids and to be bound at the top in the manner shown in FIG. 1.
  • FIG. 1 depicts the details of the finished container depicted in FIG. 1
  • FIG. 2 depicts the structure of the liner
  • FIG. 3 depicts a cross-sectional view of the final con- .struction of the lined container of FIG. I.
  • the preferred embodiment of the liner utilized in the instant invention initially takes the formof a section of tubular stock of an extruded polymeric material, which is selected from various polymers such as polyethylene, polypropylene, etc., according to the barrier and protection properties desired for the product which is to be shipped.
  • This tubular liner 40 has a longitudinal dimension substantially in excess of the height of the container and a diameter subsequently equal to that of the drum 12.
  • Prior to insertion of the liner into the drum it is divided into an upper portion or compartment 42 and a lower portion or compartment 48 by a horizontal heat seal 44. Apertures 50 are placed in the lower portion for purposes hereinafter described.
  • the liner 40 is placed within the tubular body member 12 between the bottom member 14 or header and the tubular body 12 with the metal chime 16 being placed thereover. Subsequently, a groove 18 is placedin the chime as indicated by a conventional rolling or press operation, with the lower end portion of the tubular member 12, the chime 16, the header 14, and the lower extremity of the lower member 48of the tubular liner being curled so as to provide a mechanical interlock between these four members.
  • the container After the container has been formed in this manner, it is ready for filling with the material to be stored or transported. As such material is placed within the liner 40 of the container 10, its weight will urge or force this liner to take shape of the tubular body 12. However, to
  • the apertures 50 will permit the transmission of air out of this bottom compartment whereby it may pass up the walls between the upper portion of the liner 42 and the tubular container 12.
  • the excess material which was provided at the top may be utilized to close the liner by a conventional banding or tying operation.
  • a top formed either of metal, or of container board may be placed over the top of the liner in a conventional manner.
  • the invention maytake various forms. For example a complete circumferential mechanical interlock between the lower portion 48 of the tubular liner 40 may not be necessary to obtain all the advantages of the instant invention. However, it should be noted that the mechanical interlock is in many cases quite superior to an adhesive type interlock between thebottom member 14 and a bag placed within the fibre drum since such adhesives normally require curing time, if water based, or in the alternative, if solvent based adhesives are utilized, they may emit undesirable odors.
  • an improved liner comprising:
  • a tubular flexible bag within said tubular body having an upper compartment. and a lower compartment, said upper and lower compartments being separated by a horizontal seal;
  • an improved liner comprismg:
  • a tubular flexible bag within said body portion having an upper compartment and a lower compartment, said upper and lower compartments being separated by a horizontal seal;

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

Abstract

A fibre container having a tubular body, a bottom member closing one end and a metal chime securing the bottom member to said tubular body, said container having an improved tubular flexible liner therein. The flexible liner may comprise a thin film of a polymeric material having the desired barrier or protection characteristics for the bulk material to be stored, and is divided into two portions by a horizontal heat seal. An upper portion provides an inner container for the bulk material, while the lower portion is integrally connected to the bottom of the fibre container through an interlock between the metal chime and the bottom member.

Description

United States Patent [1 1 Bowen et al.
[.4 1 Apr. 2, 1974 1 HORIZONTAL HEAT-SEAL LINER FOR FIBRE DRUMS [75] Inventors: Paul E. Bowen, Country Club Hills;
Leigh D. Evans, Alsip, both of 111.
[73] Assignee: Continental Can Company, Inc.,
New York, NY.
[22] Filed: Aug. 21, 1972 [21] Appl. N0.: 282,511
[52] US. Cl. 229/14 B, 206/47 A, 220/63, 220/67, 229/14 BE, 229/56 [51] Int. Cl B651! 5/56, B65d 5/60 [58] Field of Search 229/14 R, 14 B, 14 BE, 229/14 BA, 56; 220/63, 65, 44 C, 44 D, 45; I I 206/47 A [56] References Cited UNITED STATES PATENTS 2,245,738 6/1941 Taylor 206/47 A 2,511,481 6/1950 Schneider..... 229/14 BE 2,727,673 12/1955 Bergstrom 229/14 B Robbins 52/4 Thompson 229/14 B Primary Examiner-Herbert F. Ross Assistant ExaminerBruce H. Bernstein Attorney, Agent, or Firm-Diller, Brown, Ramik & Wight [57] ABSTRACT A fibre container having a tubular body, a bottom member closing one end and a metal chime securing the bottom member to said tubular body, said container having an improved tubular flexible liner therein. The flexible liner may comprise a thin film of a polymeric material having the desired barrier or protection characteristics for the bulk material to be stored, and is divided into two portions by a horizontal heat seal. An upper portion provides an inner container for the bulk material, while the lower portion is integrally connected to the bottom of the fibre container through an interlock between the metal chime and the bottom member.
4 Claims, 3 Drawing Figures PATENTEUAPR 2 I974 SHEET 20F 2 HORIZONTAL HEAT-SEAL LINER FOR FIBRE DRUMS BACKGROUND OF THE INVENTION This invention relates to plastic lined containers. More particularly, it relates to plastic lined fibre drums and a method for their manufacture whereby liquids, semi-liquids, and bulk materials can be effectively stored or transported therein.
Fibre drums having plastic liners are desirable for packaging many materials because they are relatively inexpensive to manufacture, are of a relatively light weight, and usually have substantial vertical stacking strength.
Containers of this nature which are currently being manufactured may include a molded liner which is integrally and mechanically interlocked with a fibre drum such as that illustrated by U.S. Pat. No. 3,158,311. In this instance the liner is specially manufactured for use .with the drum and thus requires specific methods and apparatus for its manufacture. On the other hand, some liquids, semi-liquids or bulk materials are merely placed in a loose flexible bag within a fibre drum. In the latter instance, after the material has been placed within the liner, it is sealed at its upper end and is ready for transport or storage. This design, although relatively expensive, is troublesome to the user of the package in that he must separately purchase two components, eg the fibre drum and the liner and assemble the same prior to filling thereof. Additionally, when the drum is to be emptied, it is merely turned up-side-down and the liner flows out of the drum with the material therein, the liner, having to be subsequently separated from such material.
In an effort to improve lined containers, the invention includes a fibre drum having a bottom member and a thin tubular liner locked thereto by a chime. The liner is divided into an upper container portion and a lower portion which is mechanically and frictionally interlockedto the bottom member, the two portions being separated by a horizontal seal.
Accordingly, it is an object of this invention to provide a simple economical drum for fibre containers having a liner therein which is also rigidly attached to the interior of the drum. Additionally, it is an objectof I the invention to provide a convolute wound fibre drum having a liner which will retain the fluid and vapor DESCRIPTION OF THE DRAWINGS The manner in which the objects of this invention is attained will be made clear by consideration of the following specification and claims when taken in conjunction with the accompanying drawings in which:
FIG] is a perspective view of a preferred embodiment of the instant invention;
FIG. 2 is a side elevational view of a preferred embodiment of the inner liner of the instant invention; and
FIG. 3 is an elevational view taken in section through a vertical section line of the preferred embodiment of this invention.
DETAILED DESCRIPTION As shown in FIG. 1, the preferred embodiment of my invention may be represented by a fibre drum container 10 having a flexible bag 40 therein which contains a bulk material to be stored or transported. This preferred embodiment is very similar in external appearance to the conventional fibre drum and includes a tubular body 12 preferably formed of fibre or container board which is convolutely wound about a mandrel with appropriate adhesives being placed between the various layers thereof, such being a conventional manner of manufacture of the tubular body 12. At the bottom of the tubular body 12 is a metal chime 16 which is utilized to re-enforce the lower most portion of the tubular body and to engage and mechanically interlock a;b ottom member or header 14 thereto in a manner subsequently to be described. The upper portion of the tubular body 12 also carries a metal chime 30 whidh is clamped to the container board by way of a groove 34, with the upper portion of the chime and the extremity of the tubular body 12 being curled in a manner more thoroughly depicted in FIG. 3. Within the container 10 is placed a tubular bag 40 having a closed bottom end at 44 and which is adapted to receive a bulk material, liquid or solids and to be bound at the top in the manner shown in FIG. 1.
The details of the finished container depicted in FIG. 1 may be better understood with reference to FIG. 2 which depicts the structure of the liner, and by FIG. 3 which depicts a cross-sectional view of the final con- .struction of the lined container of FIG. I.
With reference to FIG. 2, the preferred embodiment of the liner utilized in the instant invention initially takes the formof a section of tubular stock of an extruded polymeric material, which is selected from various polymers such as polyethylene, polypropylene, etc., according to the barrier and protection properties desired for the product which is to be shipped. This tubular liner 40 has a longitudinal dimension substantially in excess of the height of the container and a diameter subsequently equal to that of the drum 12. Prior to insertion of the liner into the drum it is divided into an upper portion or compartment 42 and a lower portion or compartment 48 by a horizontal heat seal 44. Apertures 50 are placed in the lower portion for purposes hereinafter described.
After the tubular liner'or insert has been formed in this manner by providing the horizontal heat seal 44 and the apertures 50, the liner 40 is placed within the tubular body member 12 between the bottom member 14 or header and the tubular body 12 with the metal chime 16 being placed thereover. Subsequently, a groove 18 is placedin the chime as indicated by a conventional rolling or press operation, with the lower end portion of the tubular member 12, the chime 16, the header 14, and the lower extremity of the lower member 48of the tubular liner being curled so as to provide a mechanical interlock between these four members. Simultaneously with, or perhaps prior to the forming of the mechanical interlock between four members at the bottom portion of the tubular member 12, the upper chime is placed upon the tubular body 12, with the curl Through this construction the conventional problems of forming a seal at the joinder of the metal chime l6 and the bottom member 14 are eliminated.
After the container has been formed in this manner, it is ready for filling with the material to be stored or transported. As such material is placed within the liner 40 of the container 10, its weight will urge or force this liner to take shape of the tubular body 12. However, to
preclude the formation'of an air pocket between the lower portion 48 of the liner 40, and the bottom member 14, the apertures 50 will permit the transmission of air out of this bottom compartment whereby it may pass up the walls between the upper portion of the liner 42 and the tubular container 12. Upon complete filling of the upper compartment 42, it is obvious that such will take the form of the container and the excess material which was provided at the top may be utilized to close the liner by a conventional banding or tying operation. Subsequently, a top formed either of metal, or of container board may be placed over the top of the liner in a conventional manner.
From this disclosure, it should be clear that applicant has provided a very inexpensive lined container of fibre board material having a liner with a minimum amount of sealing problems, and one which is mechanically interlocked with the bottom of the container. Obvious advantages include the fact that no labor is required to maintain separate liners for the containers or to insert such a liner within the container prior to the filling thereof. Too, in the event of bulk dumping of such material from the container, there is little possibility that the inner liner will pass into a hopper or a bin with the material so as to present subsequent retrieval problems.
The invention maytake various forms. For example a complete circumferential mechanical interlock between the lower portion 48 of the tubular liner 40 may not be necessary to obtain all the advantages of the instant invention. However, it should be noted that the mechanical interlock is in many cases quite superior to an adhesive type interlock between thebottom member 14 and a bag placed within the fibre drum since such adhesives normally require curing time, if water based, or in the alternative, if solvent based adhesives are utilized, they may emit undesirable odors.
We claim:'
l. in a fibre container having a tubular body, a bottom member closing one end and a chime securing said bottom member to said tubular body, an improved liner comprising:
a. a tubular flexible bag within said tubular body having an upper compartment. and a lower compartment, said upper and lower compartments being separated by a horizontal seal;
b. said upper compartment being open and forming an inner container within the fibre container; and
c. said lower compartment being secured to the bottom member and the tubular body by said chime.
2. An apparatus as recited in claim 1 in which said lower compartment is provided with means for permitting the escape of air from the space defined by the lower compartment and the bottom member.
3. An apparatus as recited in claim 1 in which said lower compartment is secured to the bottom member and tubular body by a mechanical frictional engagement effected by the chime.
4. In a container having a body portion and a bottom portion attached thereto, an improved liner comprismg:
a. a tubular flexible bag within said body portion having an upper compartment and a lower compartment, said upper and lower compartments being separated by a horizontal seal;
b. said upper compartment being open and forming an inner container within the container; and
c. said lower compartment being secured to the bottom portion and the body portion by a mechanical interlock.

Claims (4)

1. In a fibre container having a tubular body, a bottom member closing one end and a chime securing said bottom member to said tubular body, an improved liner comprising: a. a tubular flexible bag within said tubular body having an upper compartment and a lower compartment, said upper and lower compartments being separated by a horizontal seal; b. said upper compartment being open and forming an inner container within the fibre container; and c. said lower compartment being secured to the bottom member and the tubular body by said chime.
2. An apparatus as recited in claim 1 in which said lower compartment is provided with means for permitting the escape of air from the space defined by the lower compartment and the bottom member.
3. An apparatus as recited in claim 1 in which said lower compartment is secured to the bottom member and tubular body by a mechanical frictional engagement effected by the chime.
4. In a container having a body portion and a bottom portion attached thereto, an improved liner comprising: a. a tubular flexible bag within said body portion having an upper compartment and a lower compartment, said upper and lower compartments being separated by a horizontal seal; b. said upper compartment being open and forming an inner container within the container; and c. Said lower compartment being secured to the bottom portion and the body portion by a mechanical interlock.
US00282511A 1972-08-21 1972-08-21 Horizontal heat-seal liner for fibre drums Expired - Lifetime US3800994A (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4184608A (en) * 1977-01-26 1980-01-22 Christensson O W Lined container, especially for compressed and/or evacuated goods
US4411358A (en) * 1980-04-10 1983-10-25 Vitrum Ab Package
US4798363A (en) * 1987-10-23 1989-01-17 Cortesi Roy L Container with lining bag dispenser
US4823973A (en) * 1986-04-17 1989-04-25 International Paint Plc Bottom seam for pail
US5316135A (en) * 1991-09-18 1994-05-31 Caplast Gmbh Container
US6165115A (en) * 1996-08-22 2000-12-26 Sonoco Development, Inc. Process for closing and hermetically sealing a bottom of a container
US6371335B1 (en) 2000-12-07 2002-04-16 Sealright Co., Inc. Folded end construction for food sauce dispensing cartridges
US20050205578A1 (en) * 2004-03-18 2005-09-22 Jen-Ren Yeh Carrying apparatus
US20100017988A1 (en) * 2008-07-25 2010-01-28 Ming-Hsiao Lai Bucket and toilet brush set
US20100065564A1 (en) * 2008-09-15 2010-03-18 Ming-Hsiao Lai Barrel
US20220411134A1 (en) * 2019-11-26 2022-12-29 Okura Industrial Co., Ltd. Inner pouch for cylindrical container and composite container using same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2245738A (en) * 1940-02-14 1941-06-17 Ivan M Taylor Plural-compartment envelope
US2511481A (en) * 1949-05-11 1950-06-13 Rohm & Haas New-type drum package
US2727673A (en) * 1951-09-10 1955-12-20 Continental Can Co Lining for a liquid-tight heavy duty fiber container
US2916886A (en) * 1956-06-15 1959-12-15 Kwik Kold Of America Inc Unit type chemical freezing package
US3158311A (en) * 1961-10-20 1964-11-24 Continental Can Co Fiber container with plastic liner sealed in the chime thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2245738A (en) * 1940-02-14 1941-06-17 Ivan M Taylor Plural-compartment envelope
US2511481A (en) * 1949-05-11 1950-06-13 Rohm & Haas New-type drum package
US2727673A (en) * 1951-09-10 1955-12-20 Continental Can Co Lining for a liquid-tight heavy duty fiber container
US2916886A (en) * 1956-06-15 1959-12-15 Kwik Kold Of America Inc Unit type chemical freezing package
US3158311A (en) * 1961-10-20 1964-11-24 Continental Can Co Fiber container with plastic liner sealed in the chime thereof

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4184608A (en) * 1977-01-26 1980-01-22 Christensson O W Lined container, especially for compressed and/or evacuated goods
US4411358A (en) * 1980-04-10 1983-10-25 Vitrum Ab Package
US4823973A (en) * 1986-04-17 1989-04-25 International Paint Plc Bottom seam for pail
US4798363A (en) * 1987-10-23 1989-01-17 Cortesi Roy L Container with lining bag dispenser
US5316135A (en) * 1991-09-18 1994-05-31 Caplast Gmbh Container
US6165115A (en) * 1996-08-22 2000-12-26 Sonoco Development, Inc. Process for closing and hermetically sealing a bottom of a container
US6371335B1 (en) 2000-12-07 2002-04-16 Sealright Co., Inc. Folded end construction for food sauce dispensing cartridges
US20050205578A1 (en) * 2004-03-18 2005-09-22 Jen-Ren Yeh Carrying apparatus
US7228985B2 (en) * 2004-03-18 2007-06-12 Jen-Ren Yeh Carrying apparatus
US20100017988A1 (en) * 2008-07-25 2010-01-28 Ming-Hsiao Lai Bucket and toilet brush set
US20100065564A1 (en) * 2008-09-15 2010-03-18 Ming-Hsiao Lai Barrel
US20220411134A1 (en) * 2019-11-26 2022-12-29 Okura Industrial Co., Ltd. Inner pouch for cylindrical container and composite container using same
US11932453B2 (en) * 2019-11-26 2024-03-19 Okura Industrial Co., Ltd. Inner pouch for cylindrical container and composite container using same

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