Patents by Inventor David G. Pinch

David G. Pinch 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).

  • Patent number: 4799134
    Abstract: A fluorescent lighting fixture or luminaire in which the conventional number of light source is de-lamped to a lesser number and which provides acceptable light levels and distribution of light. A flexible reflector of specular reflective material is installed in the fixture above the replacement lamp. The reflector material by virtue of its flexiblity will assume a generally parabolic configuration to re-direct the light from the fixture. Thus, with the reflector, two-lamp luminaires will de-lamp to one-lamp and four-lamp luminaires may be de-lamped to two-lamps, and so on. The invention also provides an electrical connector for positioning a new lamp at a central location and which connector is engageable in the existing lamp holders.
    Type: Grant
    Filed: July 15, 1986
    Date of Patent: January 17, 1989
    Assignee: Spencer McGrath
    Inventors: David G. Pinch, Spencer C. McGrath