Patents by Inventor William B. Elmer

William B. Elmer 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).

  • Inertial pendulum
    Patent number: 4738032
    Abstract: A pendulum has a weight suspended from a bar at an essentially frictionless pivot near the center of gravity of the weight.
    Type: Grant
    Filed: June 7, 1982
    Date of Patent: April 19, 1988
    Inventor: William B. Elmer
  • Interior indirect lighting
    Patent number: 4569003
    Abstract: An indirect room lighting system has a diffuse reflecting upper band around the walls about 15 to 24 inches high. A luminaire illuminates this diffuse reflecting band with a beam of light having a radiation pattern broad horizontally and narrow vertically confined essentially to the region of the diffuse reflecting upper bands. The reflector of the luminaire may be positioned at a 45.degree. angle to the walls in the corner, intersecting in the corner, or in the center of the room comprising a Fresnel cylindrical lens, or it may take other forms.
    Type: Grant
    Filed: October 19, 1984
    Date of Patent: February 4, 1986
    Inventors: William B. Elmer, Thomas M. Lemons
  • Illuminating device with reflector portions and voids opposite thereof
    Patent number: 4422133
    Abstract: A luminaire has a spherical or ovoid reflector formed with asymmetrical voids that allow beams from the lightbulb in the reflector to emerge side-by-side through the voids in opposite directions after reflection from opposite internal surfaces of the reflector.
    Type: Grant
    Filed: November 9, 1981
    Date of Patent: December 20, 1983
    Inventor: William B. Elmer
  • Compound beam illuminating
    Patent number: 4347555
    Abstract: A light source is disposed within a light reflector formed to direct a light beam through an open end of the reflector and light controlling means for projecting a modified light beam from the same reflector.
    Type: Grant
    Filed: April 16, 1981
    Date of Patent: August 31, 1982
    Inventor: William B. Elmer
  • Compound beam illuminating
    Patent number: 4288847
    Abstract: A light source is disposed within a light reflector formed to direct a light beam through an open end of the reflector and light controlling means for projecting a modified light beam from the same reflector.
    Type: Grant
    Filed: June 18, 1979
    Date of Patent: September 8, 1981
    Inventor: William B. Elmer