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Mixing and dispensing apparatus

  • US 4,778,083 A
  • Filed: 08/10/1987
  • Issued: 10/18/1988
  • Est. Priority Date: 08/10/1987
  • Status: Expired due to Term
First Claim
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1. An apparatus for mixing and dispensing a plurality of reactive fluids comprising:

  • a body;

    a mixing chamber formed in said body and having at least two inlet ports and an outlet port;

    a dispense duct formed in said body opening into each inlet port, each said dispense duct adapted to introduce a fluid component through said inlet ports into said mixing chamber from separate sources;

    first valve means in each said dispense duct for opening and closing said inlet ports;

    second valve means disposed upstream of said first valve means for controlling the flow of said fluid components from separate sources to said mixing chamber and including a pair of ball valves each associated with one of said dispense ducts;

    means for actuating said second valve means from a closed position and to an open position including a pair of ball valve gears each coupled to rotate an associated one of said ball valves, a ball valve rack engaging said gears, and means for moving said ball valve rack to rotate said gears and said ball valves; and

    means for selectively disabling said means for actuating including a flat formed on said ball valve rack and means for positioning said flat adjacent a selected one of said gears to prevent rotation of said selected gear as said ball valve rack is moved by said means for moving whereby a selected one of said fluid components is blocked from flowing to said mixing chamber by said second valve means.

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