Patents by Inventor Richard L. Hartman

Richard L. Hartman 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).

  • Waveguide beyond cutoff coupler for coupling to resonant cavity
    Patent number: 3975695
    Abstract: A coupler capable of correctly coupling a microwave source into a resonant avity in a cryogenic environment. The coupler utilizes a rotary mechanical means to adjust the energy through the waveguide-beyond-cutoff into the cavity and control the reflections thereby.
    Type: Grant
    Filed: June 10, 1975
    Date of Patent: August 17, 1976
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Richard L. Hartman
  • Far field construction for optical fourier transforms
    Patent number: 3932745
    Abstract: An optical reflective device for reflecting electromagnetic energy such as aser energy into a two-way spatial transform apparatus and onto a target for reflecting the energy back to the transform apparatus and onto a detector in an off-set input transform plane to cause far field pattern of the target to be located on the detector. Transmissive optics as well as reflective optics can be used in the optical reflective device.
    Type: Grant
    Filed: September 30, 1974
    Date of Patent: January 13, 1976
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Richard L. Hartman