Patents by Inventor Friedewald Schreiber

Friedewald Schreiber 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).

  • Electrical wound capacitor with reduced self-inductance
    Patent number: 4672507
    Abstract: An electrical wound capacitor has a winding positioned on a core tube positioned in a housing. Outer terminals are connected to electrodes of the capacitor winding via terminal elements in an interior of the housing. The terminal elements are radially-symmetrically disposed and substantially congruent above one another, are symmetrical relative to one another, and are electrically insulated from one another.
    Type: Grant
    Filed: September 13, 1985
    Date of Patent: June 9, 1987
    Assignee: Siemens Aktiengesellschaft
    Inventors: Harald Vetter, Friedewald Schreiber
  • Impregnated electric capacitor
    Patent number: 4262322
    Abstract: An impregnated electric wound capacitor has a dielectric consisting of synthetic foils which are wound with paper tapes. The synthetic foils are impregnated with mineral oil and swell such that a residual impregnation gap remains between dielectric and the paper tapes. The existance of such a residual impregnation gap assures that re-impregnation will occur after the capacitor is subjected to temperature changes during operation or after a gas pocket develops due to a partial blow-out.
    Type: Grant
    Filed: June 5, 1979
    Date of Patent: April 14, 1981
    Assignee: Siemens Aktiengesellschaft
    Inventors: Hans-Heinz Rheindorf, Friedewald Schreiber