Container having a selectively openable seal line and peelable barrier means

{
  "publication_number": "US4519499A",
  "country": "US",
  "kind": "A",
  "title": "Container having a selectively openable seal line and peelable barrier means",
  "abstract": "A unique container is disclosed which has at least three chambers for the separate storage and selective mixing of at least two components. The container includes two outer flexible sheets and an inner, diaphragm sheet, all sealed about their peripheries in the preferred embodiment. Multiple breakable lines of securement are formed between one of the outer sheets and the inner, diaphragm sheet. Multiple permanent lines of securement are formed between the inner diaphragm sheet and the other outer sheet, extending substantially parallel to and substantially the length of the respective breakable lines of securement. Such a container structure defines two chambers which have no common boundary and an intermediate chamber. In the preferred embodiment of the invention, the intermediate chamber does not store any substance; rather, it serves as a buffer or barrier chamber and also acts as a test for seal integrity. In another embodiment of the invention, the intermediate chamber holds a third component for mixing.",
  "claims": [
    "1. A container having at least three chambers for the separate storage and selective mixing of at least two components, said container comprising: (a) a first sheet; (b) a second, diaphragm sheet sealed about at least a portion of its periphery to said first sheet and to a third sheet, said second, diaphragm sheet being intermediate said first sheet and said third sheet; (c) said first sheet and said third sheet sealed about their entire peripheries and forming the exterior wall of said container; (d) a first externally, manually breakable line of securement between said first sheet and said second, diaphragm sheet; (e) a second externally, manually breakable line of securement between said first sheet and said second, diaphragm sheet, wherein said first and second breakable lines of securement extend entirely across said container; (f) at least said first sheet, said first breakable line of securement and said second, diaphragm sheet defining a a first chamber for holding the first component; (g) at least said second sheet, said third sheet and said first and second breakable lines of securement defining a second chamber; (h) at least said first sheet, said second breakable line of securement and said second, diaphragm sheet defining a third chamber; (i) whereby manual separation of said first and second sheets near said first and second breakable lines of securement will rupture said breakable lines of securement and said second sheet, placing said first, second and third chambers in open communication.",
    "2. The container as in claim 1, wherein the second component is held in said third chamber, and said second chamber serves as a buffer chamber between said first and third chambers.",
    "3. The container as in claim 2, wherein said second chamber provide a test for integrity of said first and second breakable lines of securement.",
    "4. The container as in claim 1, wherein the second component is held in said third chamber and a third component is held in said second chamber.",
    "5. The container as in laim 1, further comprising: (a) a first permanent line of securement between said second and third sheets, extending substantially parallel to, and substantially the length of, said first breakable line of securement; (b) a second permanent line of securement between said second and third sheets, extending substantially parallel to, and substantially the length of, said second breakable line of securement; (c) said first chamber being further defined by said first permanent line of securement; (d) said second chamber being further defined by both of said first and second permanent lines of securement; (e) said third chamber being further defined by said second permanent line of securement.",
    "6. The container as in claim 5, wherein the second component is held in said third chamber, and said second chamber serves as a buffer chamber between said first and third chambers.",
    "7. The container as in claim 5, wherein the second component is held in said third chamber and a third component is held in said second chamber.",
    "8. The container as in claim 1, wherein said breakable lines of securement are formed by the application of heat.",
    "9. The container as in claim 8, wherein said breakable lines of securement are formed by the application of heat generated from a focused energy source.",
    "10. The container as in claim 9, wherein said breakable line of securement is formed by the application of heat generated from a radio-frequency energy source.",
    "11. The container as in claim 8, wherein said breakable lines of securement are formed by the application of conductive heat energy.",
    "12. The container as in claim 1, wherein said breakable lines of securement have a substantially chevron shape.",
    "13. The container as in claim 1, further including port means mounted in said container and communicating with one of said first, second and third chambers.",
    "14. The container as in claim 1, wherein first sheet is thicker than said second, diaphragm sheet."
  ],
  "cpc": [
    "A61J 1/2093",
    "A61J 1/10",
    "A61J 1/2024",
    "A61J 1/2027",
    "B29C 65/04",
    "B29C 65/18",
    "B29C 65/76",
    "B29C 66/1122",
    "B29C 66/3284",
    "B29C 66/4312",
    "B29C 66/71",
    "B29C 66/72341",
    "B29C 66/72343",
    "B29C 66/80",
    "B29C 66/81422",
    "B29C 66/81427",
    "B29C 66/81431",
    "B29C 66/81811",
    "B29C 66/8322",
    "B29L 2031/7148",
    "B65D 77/08"
  ],
  "assignees": [
    "BAXTER TRAVENOL LAB"
  ],
  "filing_date": "1984-06-15",
  "publication_date": "1985-05-28",
  "grant_date": "1985-05-28",
  "priority_date": "1984-06-15",
  "application_number": "US-61964784-A",
  "family_id": "24482753",
  "citations": [
    "US2991000A",
    "US3173602A",
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    "US3627611A",
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    "US3874504A",
    "US3891138A",
    "US3950158A",
    "US3983994A",
    "US4000996A",
    "US4226330A",
    "US4227614A",
    "US4239105A",
    "US4276263A",
    "US4312473A",
    "US4402402A",
    "US4458811A",
    "US4465488A"
  ]
}