Patents by Inventor Paul A. Galvan

Paul A. Galvan 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).

  • Solid-propellant-powered maneuvering system for spacecraft
    Patent number: 5062593
    Abstract: An improvement to a variable-pressure solid-propellant-powered maneuvering ystem for spacecraft, enabling the system to operate for longer than one propellant burn time. At least two solid propellant gas generators are connected via a manifold to a plurality of nozzle valve clusters; at least one of the gas generators is connected to the manifold via a sequence valve which isolates that generator from the manifold until such time as it is desired to put that generator into operation.
    Type: Grant
    Filed: February 15, 1991
    Date of Patent: November 5, 1991
    Assignee: United States Government as represented by the Secretary of the Navy
    Inventors: Charles W. Goddard, John T. Lucas, Paul A. Galvan
  • Dual pressure solid propellant control system
    Patent number: 4550888
    Abstract: A dual pressure solid propellant control system capable of operating at temperatures of approximately 3000.degree. F. and at multiple pressures. A solid propellant gas generator is connected to a plurality of valve clusters by a manifold, the valves and manifold being of a high temperature material and each valve being independently operable. A pressure feedback loop maintains the system pressure at a commanded value by effectively increasing or decreasing the gas exit area by varying the pulse duration modulation of the valves.
    Type: Grant
    Filed: June 28, 1982
    Date of Patent: November 5, 1985
    Inventors: Randle Douglass, H. George Jacquin, Paul M. Chewey, Paul A. Galvan, Richard S. Naragon