Patents by Inventor Jun G. Wong

Jun G. Wong 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: 4678871
    Abstract: A reversing switch for use in a rechargeable hand tool, the switch being located between the battery and the electric motor and being in direct contact with both. The switch has an actuator pivotally connected to an insulating mounting support which also holds two transfer terminals, one connected to each of two terminals of the battery, and a contact carrier which is rotatably connected to the support and coupled to the actuator in order to be rotated by the pivoting of the actuator. Pivot contacts are attached to the contact carrier displaced from one another to provide a space for the parallel leads of the electric motor. Pivoting of the actuator reverses the connection of battery terminals to the motor leads and, accordingly, reverses the direction of the electric motor. The transfer terminals have recharging contacts which are accessible through ports in the housing of the hand tool to allow recharging of the battery without removing it from the rest of the tool.
    Type: Grant
    Filed: July 22, 1985
    Date of Patent: July 7, 1987
    Assignee: Skil Corporation
    Inventor: Jun G. Wong
  • Patent number: D403214
    Type: Grant
    Filed: May 2, 1997
    Date of Patent: December 29, 1998
    Assignee: S-B Power Tool Company
    Inventors: P. Sean Gallagher, Dale M. Flowers, Jun G. Wong