Patents by Inventor Andrew E. Dequasie

Andrew E. Dequasie 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).

  • Capacitor having dielectric material containing calcium oxide
    Patent number: 5708558
    Abstract: A metalized film capacitor has a plurality of electrodes separated by dielectric spacers and contains a dielectric fill system including 1 to 50 wt % of calcium oxide scavenger. This dielectric fill system is especially useful in aluminum metalized film capacitors for AC service.
    Type: Grant
    Filed: May 20, 1996
    Date of Patent: January 13, 1998
    Assignee: Commonwealth Sprague Capacitor Inc.
    Inventor: Andrew E. Dequasie
  • Dry metallized film capacitor
    Patent number: 4580189
    Abstract: A dry metallized film capacitor which includes an interrupter is potted with a plasticized urethane containing unreacted isocyanate groups. Sufficient plasticizer is used so that the potting material is soft enough to permit functioning of the interrupter and is also viscous enough to remain in place to prevent spillage under leakage or rupture conditions.
    Type: Grant
    Filed: March 12, 1985
    Date of Patent: April 1, 1986
    Assignee: Sprague Electric Company
    Inventors: Andrew E. Dequasie, Herbert L. Rice
  • AC Capacitor and impregnant therefor
    Patent number: 4449163
    Abstract: An AC metallized film capacitor having a plurality of electrodes separated by a dielectric spacer contains a dielectric fluid and 2 to 10% of .alpha.-naphthyl isocyanate as impregnant system to scavenge moisture and to improve capacitance retention.
    Type: Grant
    Filed: February 28, 1983
    Date of Patent: May 15, 1984
    Assignee: Sprague Electric Company
    Inventors: Andrew E. Dequasie, Sidney D. Ross