Patents Assigned to Thumbnail Company
  • Groove forming apparatus and method
    Patent number: 4742856
    Abstract: A machine to cut grooves in the mitred end portions of frame members of a picture frame, so that connectors can be inserted in these grooves and join the members to form the picture frame. A base structure mounts a pair of frame members spaced from one another, and a motor with a router bit is positioned with the bit between the frame membersd, with the motor and bit being moved laterally in opposite directions to form the grooves.
    Type: Grant
    Filed: June 26, 1987
    Date of Patent: May 10, 1988
    Assignee: The Thumbnail Company
    Inventors: Kenneth L. Hehr, Ronald J. Morgan
  • Picture frame joining device
    Patent number: D309985
    Type: Grant
    Filed: February 19, 1987
    Date of Patent: August 21, 1990
    Assignee: Thumbnail Company
    Inventor: Eugene J. Cox