Patents Represented by Attorney C. D. Curry

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  • Thermoelectric actuator for mirror adjustment
    Patent number: 4618223
    Abstract: A thermoelectric apparatus for adjusting the shape or position of a mirror y application of pressure from a device which changes dimensionally with changes in temperature. The device is a metallic or non-metallic generally tubular member having a heat pump mounted thereon which in turn has a thermal connection to a controllable heat source. A temperature sensor is also mounted on the device and both the temperature sensor and the heat pump are electrically connected to a controller.
    Type: Grant
    Filed: September 29, 1983
    Date of Patent: October 21, 1986
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Lawrence Fried
  • 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