Patents Examined by David H. Bollihger
  • Patent number: 4805815
    Abstract: A metering dispenser including a metering chamber having an inlet port and an outlet port, an inlet valve for admitting flowable material to the metering chamber through the inlet port, an outlet valve for allowing discharge of the material. To control operation of the inlet and outlet valves, a valve control member is operatively associated with the inlet and outlet valves and is pivotally movable between two extreme limits of pivotal movement which correspond respectively to fill and discharge conditions of the dispenser. A control biasing spring is associated with the valve control member and biases the valve control member towards the one of the extreme limits of pivotal movement corresponding to the dispenser being in the fill condition. An actuator is operative to move the valve control member against the action of the biasing spring. The valve control may be mechanically operative to control operation of the inlet and outlet valves.
    Type: Grant
    Filed: August 18, 1986
    Date of Patent: February 21, 1989
    Assignee: Peter Bayly Associates Australia Pty. Ltd.
    Inventors: Peter K. Bayly, John E. Oretti, Michael J. Mote