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GUARANTEE CAP

  • US 3,603,469 A
  • Filed: 02/20/1969
  • Issued: 09/07/1971
  • Est. Priority Date: 04/11/1968
  • Status: Expired due to Term
First Claim
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1. In combination with a bottle having a bottle neck with an outwardly extending rim, a container adapted to contain tablets or powder fitted in said bottle neck, said container having a frangible bottom wall and a radially outwardly extending flange at the upper open end thereof abutting against the upper face of said rim;

  • means having a cutting edge at the lower end thereof located in said container movable from an upper rest position in which said cutting edge is upwardly spaced from said bottom wall and in which an upper portion of said means projects through and upwardly beyond said open end of said container to a lower active position in which said cutting edge engages said frangible bottom wall to break the latter; and

    a cap surrounding said rim of said bottle neck and extending with a top wall thereof over said upper portion of said means in the rest position of the latter to prevent the same from being inadvertently moved to said active position, said cap being provided with an inwardly extending annular groove forming a shoulder having a bottom face engaging the top face of said flange of said container and at its lower end an inwardly extending annular flange engaging the bottom face of said rim so as to hold said flange of said container tightly against the top face of said rim, while spacing the top wall of said cap upwardly from said flange of said container, said cap being further provided between said shoulder and said inwardly extending flange thereof with an annular notch permitting tearing off the cap portion beneath the notch and therewith removal of the remainder of said cap from said bottle neck so that said means may be moved from said rest to said active position by flexing said top wall of said cap, while said cap may be removed to open said bottle by tearing off said cap portion from the remainder of said cap.

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