Patents by Inventor Sheri Gillett

Sheri Gillett 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).

  • Direct pneumatic piston driven impression material dispensing system
    Patent number: 6676408
    Abstract: A viscous material dispensing system 100 utilizes pressurized gas directed to one end of a piston 109 and cylinder 103 assembly to extrude impression material 128, 129 from a dispenser 121 through a tube 133 into a dental tray 135 which hardens to form a mold of the patient's mouth. The movement of the piston 109 is controlled by switches 147, 149 which control gas valves 143, 145 which direct the pressurized gas to either side of the piston 109. A timer 141 is built into the material dispensing system to monitor the working time and the set time of the impression material 128, 129 after it has been injected into the dental tray 135.
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: January 13, 2004
    Assignee: MicroDental Laboratories, Inc.
    Inventors: Raymond Bushnell, Sheri Gillett, Andras Hites, George Hites