Patents by Inventor Dennis L. Berry

Dennis L. Berry 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).

  • 5th axis machining center fixture
    Patent number: 4999894
    Abstract: A workpiece positioning fixture for use in a multiple axis machining center having a pallet and a tool holder, and being capable of changing the relative positions of the pallet and tool holder along X, Y and Z linear axes and along a B rotational axes, includes a base, a workpiece holder, and a structure for rotating the workpiece holder in response to circular interpretation of the tool holder with respect to the base. When the workpiece holder reaches its desired angular orientation, a locking pin is used to prevent rotation of the workpiece during the machining operation.
    Type: Grant
    Filed: March 29, 1989
    Date of Patent: March 19, 1991
    Assignee: Westinghouse Electric Corp.
    Inventors: Dennis L. Berry, Douglas K. Money