Patents by Inventor Jack L. Matheney

Jack L. Matheney 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).

  • D.C. to D.C. converter
    Patent number: 4426678
    Abstract: The object of the invention is to provide an improved converter for converting one direct current voltage to another.A plurality of phased square wave voltages are provided from a ring counter (14) through amplifiers (A.sub.O1 -A.sub.O6) to a like plurality of output transformers (TO). Each of these transformers has two windings, and S.sup.1 winding and an S.sup.2 winding. The S.sup.1 windings are connected in series, then the S.sup.2 windings are connected in series, and finally, the two sets of windings are connected in series. One of six SCRs (SCRs 1-6) is connected between each two series connected windings to a positive output terminal (22) and one of diodes (D1-D6) is connected between each set of two windings of a zero output terminal (0). By virtue of this configuration, a quite high average direct current voltage is obtained, which varies between full voltage and two-thirds full voltage rather than from full voltage to zero.
    Type: Grant
    Filed: May 28, 1982
    Date of Patent: January 17, 1984
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Albert E. Willis, John M. Gould, Jack L. Matheney, Harrison Garrett