Patents by Inventor Norris Shippen

Norris Shippen 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).

  • Radial arm saw mortising adapter
    Patent number: 5413158
    Abstract: A simplified mortising adapter for converting a conventional radial arm saw, or other power tool having an arbor, into a mortising tool. The adapter includes a base plate and a drive spindle rotatably mounted to the base plate for connecting to the radial arm saw or other power tool's arbor and driving a chain saw adjustably attached to the base plate. The drive spindle has a socket having a characteristic shape which is generally complementary to the shape of the arbor so that those components can be drivingly engaged. The adapter also includes a clamp mechanism for clamping the base plate to the power tool in a manner such that the base plate can be adjusted to concentrically align the drive spindle with the arbor when the base plate is clamped to the power tool.
    Type: Grant
    Filed: April 21, 1994
    Date of Patent: May 9, 1995
    Assignee: Woodworker's Supply, Inc.
    Inventors: John Wirth, Jr., Norris Shippen, Jay L. Sanger