Patents Assigned to Yale Engineering Inc.
  • Patent number: 4159813
    Abstract: A traversing carriage has a shift member movable thereon which bears a pair of partial nuts for alternate engagement with each of two lead screws. A pair of latches are mounted on the carriage, each adapted to retain one of the partial nuts in engagement with a lead screw. Latch actuators are located to trip the latches and to operate the shift member when the carriage reaches predetermined limits of traverse.
    Type: Grant
    Filed: October 19, 1977
    Date of Patent: July 3, 1979
    Assignee: Yale Engineering Inc.
    Inventor: Thomas L. Yale