Patents by Inventor James L. Blumberg

James L. Blumberg 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).

  • Gas flow controller
    Patent number: 5329966
    Abstract: There is disclosed a system for delivering gas at a predetermined rate of flow, including a diaphgram type flow controller, a pressure regulator for providing a constant flow of gas to the flow controller, and a microprocessor controlled stepper motor utilizing an optical encoder to adjust the rate of flow of a gas leaving the controller without having to use a gas flow measurement device to monitor the flow rate.
    Type: Grant
    Filed: March 8, 1993
    Date of Patent: July 19, 1994
    Assignee: Vici Metronics Incorporated
    Inventors: David C. Fenimore, Walter H. McHenry, James L. Blumberg