Patents by Inventor Ronald Arvid Waino

Ronald Arvid Waino 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: 5747766
    Abstract: An operating mechanism for a vacuum interrupter which includes a spring driven multi-linked system moving the interrupter contacts open or closed with precise, controlled movement to minimize opening rebound, closing rebound and contact opening overtravel. Such a multi-linked system provides high contact separation forces and movement to a specific contact gap while simultaneously loading a closing spring to it's fully charged and latched state. This mechanism provides and maintains full contact pressure from the instant of contact make to the instant of contact separation.
    Type: Grant
    Filed: February 21, 1995
    Date of Patent: May 5, 1998
    Assignee: Cooper Industries, Inc.
    Inventors: Ronald Arvid Waino, Daniel James Schreiber