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US4114784A Expired / Lapsed US ⏱️ 0.0 years remaining

Compartmented composite container including a snap-fit separator member

Assignee: Sonoco Products Co
•
Filing: 1977-04-01
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Granted: 1978-09-19
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Expires: 1997-04-01
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Abstract

Abstract A compartmented composite container package is disclosed including a tubular composite body wall member closed at one end by a metal closure member, the one end of said body wall member containing a cup for receiving a first product, characterized by the provision of a separator member that is connected with the open end of the cup by a snap-fit connection to isolate the first product from a second product that is introduced into the remaining space within the tubular wall member via the other end thereof. In order to further isolate the products from each other, the separator includes a radially enlarged cylindrical flange portion that circumferentially engages the uniform cylindrical inner wall surface of the tubular body wall member, thereby to cooperate with the snap-fit connection to provide a double sealing result.

Inventors

  • 👤 Robert J. Hough
  • 👤 John E. Bacon

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 07:16
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/32; B65D81/3216; Y; Y10; Y10S; Y10S206/00; Y10S206/83

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 363 words
A compartmented composite container, comprising (a) a composite tubular body wall including a fibrous body wall layer and an impervious inner liner layer, the inner cylindrical circumferential surface of said body wall being uniform throughout its length; (b) an end closure member connected to close one end of said body wall; (c) a cylindrical open-ended synthetic plastic cup member arranged concentrically within said body wall with the bottom of said cup member seated on said end closure member, the outer diameter of said cup member corresponding generally with the inner diameter of said tubular body wall, thereby to permit said cup member to be slidably inserted within said tubular body wall, the open top end of said cup member including an upper end surface spaced from the other end of said tubular body wall; (d) a rigid metal separator member closing the upper end of said cup member, whereby said cup member and the space between said separator member and the other end of said tubular body member are adapted to contain first and second products, respectively, separated by said separator member, said separator member including (1) a central circular disk-shaped portion arranged transversely within the open top end portion of said cup member, (2) a cylindrical neck portion which extends longitudinally upwardly through the open upper end of said cup member; and (3) a generally outwardly extending annular flange portion, (4) said flange portion terminating at its outer peripheral edge in a reversely curled portion; and (e) means defining a snap-fit connection between said separator neck portion and the upper end of said cup member, thereby to define a first pair of abutting sealing surfaces for separating the container products; (f) the outer diameter of said separator flange portion corresponding with the inner diameter of the tubular body wall to effect frictional engagement between said flange portion and said body wall inner surface, thereby to define a second pair of abutting sealing surfaces for separating the container products; (g) the reversely curled separator portion being in contiguous engagement with the upper end surface of said cup member, thereby to define a third pair of abutting sealing surfaces for separating the container products.
Claim 2
Dependent Claim 363 words
A compartmented composite container, comprising (a) a composite tubular body wall including a fibrous body wall layer and an impervious inner liner layer, the inner cylindrical circumferential surface of said body wall being uniform throughout its length; (b) an end closure member connected to close one end of said body wall; (c) a cylindrical open-ended synthetic plastic cup member arranged concentrically within said body wall with the bottom of said cup member seated on said end closure member, the outer diameter of said cup member corresponding generally with the inner diameter of said tubular body wall, thereby to permit said cup member to be slidably inserted within said tubular body wall, the open top end of said cup member including an upper end surface spaced from the other end of said tubular body wall; (d) a rigid metal separator member closing the upper end of said cup member, whereby said cup member and the space between said separator member and the other end of said tubular body member are adapted to contain first and second products, respectively, separated by said separator member, said separator member including (1) a central circular disk-shaped portion arranged transversely within the open top end portion of said cup member, (2) a cylindrical neck portion which extends longitudinally upwardly through the open upper end of said cup member; and (3) a generally outwardly extending annular flange portion, (4) said flange portion terminating at its outer peripheral edge in a reversely curled portion; and (e) means defining a snap-fit connection between said separator neck portion and the upper end of said cup member, thereby to define a first pair of abutting sealing surfaces for separating the container products; (f) the outer diameter of said separator flange portion corresponding with the inner diameter of the tubular body wall to effect frictional engagement between said flange portion and said body wall inner surface, thereby to define a second pair of abutting sealing surfaces for separating the container products; (g) the reversely curled separator portion being in contiguous engagement with the upper end surface of said cup member, thereby to define a third pair of abutting sealing surfaces for separating the container products.
Claim 3
Dependent Claim 49 words
A compartmented container as defined in claim 1, wherein said snap-fit connection means comprises a radially-inwardly-extending annular bead on the inner surface of said cup member adjacent the upper end thereof, said bead extending within a corresponding annular groove contained in the outer surface of said separator neck portion.
Claim 4
Dependent Claim 41 words
A compartmented container as defined in claim 1, and further including a support disk seated on the upper surface of said separator flange portion, the diameter of said support disk corresponding generally with the internal diameter of the tubular body wall.

References Cited (Backward Citations)

GB1051033A Cited
US2949369A Cited
US3293433A Cited
US3243038A Cited
US3420397A Cited
US3385503A Cited
US3955006A Cited
US3851757A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1981-09-18 1982-03-20 1982-09-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1985-09-18 1986-03-20 1986-09-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1989-09-18 1990-03-20 1990-09-19 $7700.00 Window Closed / Lapsed

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