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MULTI-MIX

  • US 3,674,028 A
  • Filed: 06/04/1969
  • Issued: 07/04/1972
  • Est. Priority Date: 06/04/1969
  • Status: Expired due to Term
First Claim
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1. A novel medicament container comprising a first cylindrical zone having an opening at each of its ends, one end of said first cylindrical zone opening into a second cylindrical zone, said second cylindrical zone having an internal diameter which is larger than the internal diameter of said first cylindrical zone, said second cylindrical zone terminating in an imperforate circular closed end, a slidable resilient imperforate stopper within said first cylindrical zone normally forming a fluid tight seal on the walls of said zone, said stopper being longitudinally slidable over the length of said first cylindrical zone while maintaining a seal with the walls of said zone, said stopper being receivable in said second cylindrical zone whereby fluid communication can be established between said zones to permit mixing of different materials contained above and below said stopper, said container also having a third zone at the other end of said first cylindrical zone and comprising a longitudinally compressible wall portion and an end closure which includes a sealable dispensing tip to provide a two-compartment medicament storage device, said compressible wall portion being adapted to create hydraulic pressure on said slidable stopper upon compression to slide the stopper from said first cylindrical zone into said second cylindrical zone.

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