×

Dosing and/or dispensing system

  • US 6,986,443 B2
  • Filed: 04/29/2004
  • Issued: 01/17/2006
  • Est. Priority Date: 02/12/2002
  • Status: Expired due to Term
First Claim
Patent Images

1. In combination:

  • an inverted liquid container having upper and lower ends;

    said lower end of said container having a hollow throat extending downwardly therefrom;

    a hollow cup having upper and lower ends;

    a connector on the upper end of said cup which is selectively secured to the throat of the container;

    said upper end of said cup having a central opening formed therein which is in communication with said connector;

    said upper end of said cup having at least one vent opening formed therein which is in communication with ambient air;

    a valve normally closing said vent opening;

    said cup having a valve opening formed therein above its lower end;

    said cup having a central opening formed in its said lower end below said valve opening;

    a lift valve, having upper and lower ends, vertically movably mounted on said lower end of said cup which is movable between upper and lower positions;

    said lift valve having a valve stem which is slidably received by said central opening in said lower end of said cup;

    said valve stem having a closed upper end and an open lower end;

    said valve stem having at least one liquid passageway formed therein below its said closed upper end;

    a valve on said valve stem of said lift valve which closes said valve opening when said lift valve is in its said lower position;

    said liquid passageway being positioned below said valve opening when said lift valve is in its said lower position;

    said liquid passageway being positioned above said valve opening when said lift valve is in its said upper position;

    a vent actuator operatively secured to said lift valve above said valve opening for movement therewith;

    said vent actuator being movable between upper and lower positions;

    said valve means closing said vent opening when said vent actuator is in its said lower position;

    said valve means causing said vent opening to be open when said vent actuator is in its said upper position.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×