Patents Assigned to Positive Connections, Inc.
  • Patent number: 4711461
    Abstract: A trailer hitch is disclosed for providing coupling about three independent axes between a towing vehicle and a trailer. The hitch includes a first U-shaped yoke member having a base plate adapted for attachment to the towing vehicle and having a pair of spaced-apart arms receiving and supporting a first hinge pin extending along a horizontal, transverse axis. A second U-shaped yoke member having a pair of spaced-apart arms supports a second hinge pin about a vertical axis. The first and second U-shaped yoke members are intercoupled by first and second hollow cylindrical sections joined together in the form of a cross, the first hollow cylindrical section being supported upon the first hinge pin and the second cylindrical section being supported upon the second hinge pin to form a universal coupling.
    Type: Grant
    Filed: April 17, 1986
    Date of Patent: December 8, 1987
    Assignee: Positive Connections, Inc.
    Inventor: John P. Fromberg