Patents by Inventor Duncan Toll

Duncan Toll has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Package with multiple chambers and valves
    Patent number: 6398077
    Abstract: A dispensing system is provided for two, constituent, fluent materials which are stored separately and then combined in a dispensing process to form a combination product. The dispensing system includes a container having at least two interior storage chambers, and each chamber has a separate discharge opening. Associated with each discharge opening is a separate, flexible valve. Each valve has an initially closed dispensing orifice which opens in response to a differential between the pressure acting against the side of the closed valve facing toward the associated discharge opening and the pressure acting against the side of the closed valve facing away from the associated discharge opening. In a preferred embodiment, a top is provided downstream of the valve. The top is movable between (1) a close position to occlude a dispensing flow path downstream of the valves, and (2) an open position which permits flow to be discharged from the system.
    Type: Grant
    Filed: February 11, 2000
    Date of Patent: June 4, 2002
    Assignee: Seaquist Closures Foreign, Inc.
    Inventors: Richard A. Gross, Daniel G. Schantz, Timothy R. Socier, Fred H. Martin, Julie M. Grissmeyer, Duncan Toll