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Container provided with a closure

  • US 4,798,311 A
  • Filed: 06/04/1986
  • Issued: 01/17/1989
  • Est. Priority Date: 08/23/1984
  • Status: Expired due to Fees
First Claim
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1. An apparatus, comprising:

  • a flexible container for a flowable product which can be dispensed in portions by the application of pressure to the container, said container having a first opening; and

    a closure for the container, said closure being positioned over said opening and including an outlet valve which can be actuated by pressure from within said container, said closure with said outlet valve comprising;

    a first member including a plug having a face with a sealing surface, and a support structure for said plug;

    a second member having a second opening aligned with said plug, said plug being receivable in said second opening;

    means defining a product flow path extending from said first opening to a position adjacent said plug such that communication with said second opening is blocked by said plug when said plug is received in said second opening;

    means for moving said first and second members relative to each other from a position in which said plug is in engagement with said second opening to block said communication to a position in which said plug is spaced from said second opening to allow communication between said product flow path and said second opening such that said product can flow from said container, said moving means permitting one of said first and second members to move, and means defining a pressure flow path extending from said container to a position adjacent said movable member for transmitting pressure from said container to said movable member to space said plug from said second opening, said moving means causing said pressure flow path and said product flow path to be completely separate from each other when said plug is engaged in said second opening and when said plug is spaced from said second opening.

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