Patents by Inventor Fred W. Olmsted

Fred W. Olmsted 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: 4914547
    Abstract: An epoxy-encased wound capacitor suitable for being surface mounted and wave soldered to electronic circuitry, e.g. circuit boards and process for making the epoxy-encased wound capacitor. The wound capacitor is formed from winding together lengths of two bilaminar ribbons. The capacitor is then cured by exposing it to ultrasonic energy according to a predefined ultrasonic profile while at substantially the same time, mechanically pressing the capacitor. Contacts are formed on the capacitor and wire leads attached. Subsequently, the capacitor is placed in a flexible, reusable plastic mold featuring lead guides for precisely spacing the leads of the capacitor. Bubble-free epoxy is poured in the molds and heat cured. The epoxy-encased capacitor, suitable for surface mounting and wave soldering, is then removed from the mold.
    Type: Grant
    Filed: May 6, 1988
    Date of Patent: April 3, 1990
    Assignee: American Shizuki Corporation
    Inventors: Joseph A. Toro, Thomas G. Johnson, Fred W. Olmsted