Patents by Inventor James R. Gemmell

James R. Gemmell 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).

  • Apparatus and method for variably restricting flow in a pressurized dispensing system
    Patent number: 6325255
    Abstract: In a fluid flow restrictor, the amount of fluid flow restriction increases in response to higher dispensing system pressures and decreases in response to lower dispensing system pressures. In this manner, a relatively consistent flow rate of fluid being dispensed can be maintained regardless of fluctuations in system pressure. Variable resistance is provided by changing the length of the fluid flow path or by changing the cross-sectional area, and, thus, the volume of the fluid flow path, or by changing both the length and the cross-sectional area of the fluid flow path.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: December 4, 2001
    Assignee: Quoin Industrial, Inc.
    Inventors: Michael L. Lane, James R. Gemmell