Patents Assigned to Corners, Ltd.
  • Tube assembling device
    Patent number: 4368998
    Abstract: The invention relates to a device for coupling or plugging square tubes, which comprises a hollow base member having a hollow coupling member projecting therefrom and, if desired, one or more other coupling members projecting from the base member. The other coupling members have axial partitions in the mid-portions thereof, at least the mid-portion of which is thick enough to receive a sheet metal screw and, if desired, there is provided a plug for the hollow coupling member for receiving a sheet metal screw.
    Type: Grant
    Filed: March 18, 1981
    Date of Patent: January 18, 1983
    Assignee: Corners, Ltd.
    Inventor: James J. Pestoor