Patents by Inventor Francis Sollman, deceased

Francis Sollman, deceased 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 metering apparatus
    Patent number: 5137046
    Abstract: A fuel control apparatus for supplying metered fluid at a variable pressure to a turbine engine in response to an electrical signal. A solenoid responds to the electrical signal to vary the flow rate of the fluid to an outlet and to regulate the pressure differential across an orifice as a function of the flow rate.
    Type: Grant
    Filed: April 24, 1991
    Date of Patent: August 11, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Francis Sollman, deceased, Robert L. Roberts