Patents by Inventor Karl J. Gabel

Karl J. Gabel 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).

  • Intelligent pressure regulator
    Patent number: 6178997
    Abstract: An intelligent pressure regulator for maintaining a fluid in a process at a predetermined pressure includes an electronic controller which enhances regulator performance and provides self-diagnostics and communications capabilities. The electronic controller includes a pressure sensor which provides a signal indicating the pressure of the fluid being controlled, an adjusting pressure for adjusting the position of a throttling element; and a PID controller which receives the signal indicating the pressure of the fluid being controlled and applies the adjusting pressure to the actuator in response to the signal.
    Type: Grant
    Filed: April 5, 2000
    Date of Patent: January 30, 2001
    Assignee: Fisher Controls International, Inc.
    Inventors: Paul R. Adams, Karl J. Gabel, Daniel G. Roper
  • Intelligent pressure regulator
    Patent number: 6056008
    Abstract: An intelligent pressure regulator for maintaining a fluid in a process at a predetermined pressure includes an electronic controller which enhances regulator performance and provides self-diagnostics and communications capabilities. The electronic controller includes a pressure sensor which provides a signal indicating the pressure of the fluid being controlled, an adjusting pressure for adjusting the position of a throttling element; and a PID controller which receives the signal indicating the pressure of the fluid being controlled and applies the adjusting pressure to the actuator in response to the signal.
    Type: Grant
    Filed: September 22, 1997
    Date of Patent: May 2, 2000
    Assignee: Fisher Controls International, Inc.
    Inventors: Paul R. Adams, Karl J. Gabel, Daniel G. Roper
  • Diagnostic device and method for pressure regulator
    Patent number: 6035878
    Abstract: A diagnostic device and method for an intelligent pressure regulator which maintains a fluid in a process at a predetermined pressure. The regulator includes an electronic controller which enhances regulator performance and provides self-diagnostics and communications capabilities. The electronic controller includes a pressure sensor which provides a signal indicating the pressure of the fluid being controlled, an adjusting pressure for adjusting the position of a throttling element; and a PID controller which receives the signal indicating the pressure of the fluid being controlled and applies the adjusting pressure to the actuator in response to the signal.
    Type: Grant
    Filed: September 22, 1997
    Date of Patent: March 14, 2000
    Assignee: Fisher Controls International, Inc.
    Inventors: Paul R. Adams, Karl J. Gabel, Daniel G. Roper