Patents by Inventor David N. Stager

David N. Stager 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).

  • Exoatmospheric calibration sphere
    Patent number: 4527619
    Abstract: A sphere which provides a high emissivity, uniform, isothermal calibration ource which is fully instrumented for surface temperature and range measurements. The characteristics are achieved by using high thermal conductivity copper hemispheres disposed in spaced, concentric relation and containing a distributed heat pipe therebetween to minimize surface temperature gradients.
    Type: Grant
    Filed: July 30, 1984
    Date of Patent: July 9, 1985
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Francis R. Cartier, David N. Stager, Roy M. Acker