Patents by Inventor Bernardus J. Overgoor

Bernardus J. Overgoor 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).

  • DC/AC converter for the supply of a gas and/or vapor discharge lamp
    Patent number: 5027038
    Abstract: A DC/AC converter for supplying two discharge lamps (12, 13). Two input terminals (4, 5) of the converter are interconnected by a series circuit comprising two switching elements (6, 7). A capacitor (8) connects one of the input terminals (4) to a common end (18) of two output circuits (17, 16, 15, 14; 23, 22, 21, 20), one of these output circuits (17, 16, 15,14) also is connected to a junction point (19) between the switching elements (6, 7). A second series circuit comprising two further switching elements (10, 11) is connected to the input terminals. The other output circuit is connected to a junction point (19.sup.a) between the two further switching elements. The converter thus can be readily used both for simultaneously supplying two lamps and for supplying only one lamp.
    Type: Grant
    Filed: April 27, 1990
    Date of Patent: June 25, 1991
    Assignee: U.S. Philips Corporation
    Inventors: Andrianus M. J. De Bijl, Wilhelmus H. Iding, Bernardus J. Overgoor