Patents by Inventor Joseph Messmer

Joseph Messmer 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).

  • Critical flow detection
    Patent number: 4753114
    Abstract: The invention provides a method and apparatus for determining when critical flow conditions are reached in a nozzle. The apparatus comprises a flow nozzle having a throat therein, a means for measuring temperature in the throat, a means for measuring temperature downstream of the throat, and a means for determining differential temperature between the throat and the downstream location. The method comprises measuring a temperature in the throat of the critical flow nozzle, measuring the temperature downstream of the nozzle, and adjusting an upstream pressure to maximize the difference between the throat and the downstream location.
    Type: Grant
    Filed: November 26, 1986
    Date of Patent: June 28, 1988
    Assignee: Chevron Research Company
    Inventors: Emrys H. Jones, Jr., Joseph Messmer