Patents by Inventor Frank L. Roberge

Frank L. Roberge 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 control valve and method
    Patent number: 4232695
    Abstract: A redundantly operating fluid control valve and method particularly suitable for controlling flow of dangerous fluid, utilizing concentric poppets which are sequentially engaged with corresponding seats through movement of a single actuator.
    Type: Grant
    Filed: December 18, 1978
    Date of Patent: November 11, 1980
    Assignee: The Garrett Corporation
    Inventor: Frank L. Roberge
  • Fluid temperature transducer
    Patent number: 4121763
    Abstract: A fluid temperature transducer comprises a housing having two housing members, one of which defines a passageway controlled by a valve therein and the other is provided with a bimetallic disc subject on both faces to a fluid whose temperature is to be sensed, and arranged to engage actuating means for actuation of the valve when the temperature of the fluid sensed by the bimetallic disc changes between the crack point and set point temperatures.
    Type: Grant
    Filed: July 7, 1977
    Date of Patent: October 24, 1978
    Assignee: The Garrett Corporation
    Inventor: Frank L. Roberge