Patents by Inventor James W. Hurst

James W. Hurst 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).

  • Fluid activated flow control system
    Patent number: 8230871
    Abstract: A fluid flow regulating device is provided that maintains pressure and flow rate characteristics of a source fluid while the fluid is distributed to multiple delivery lines. The inventive device switches between multiple output ports in response to fluid pressure changes or by a mechanism driven by fluid flow. Thus, existing fluid delivery systems are easily expandable while avoiding installation of additional timing control mechanisms, electrical runs, or fluid sources.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: July 31, 2012
    Inventor: James W. Hurst
  • FLUID ACTIVATED FLOW CONTROL SYSTEM
    Publication number: 20080190488
    Abstract: A fluid flow regulating device is provided that maintains pressure and flow rate characteristics of a source fluid while the fluid is distributed to multiple delivery lines. The inventive device switches between multiple output ports in response to fluid pressure changes or by a mechanism driven by fluid flow. Thus, existing fluid delivery systems are easily expandable while avoiding installation of additional timing control mechanisms, electrical runs, or fluid sources.
    Type: Application
    Filed: February 11, 2008
    Publication date: August 14, 2008
    Inventor: James W. Hurst
  • Rod assembly for multipole mass spectrometers
    Patent number: 4990777
    Abstract: A multiple rod assembly for multipole mass spectrometers in which the rods are supported in cooperative aligned relationship by ceramic rings with metal rings and brackets.
    Type: Grant
    Filed: March 2, 1990
    Date of Patent: February 5, 1991
    Assignee: Finnigan Corporation
    Inventors: James W. Hurst, Robert M. Smith, John M. Horth