Patent ID: 9095969
Filing Date: 2015-08-04
Classification: B25F,B25J

Abstract:
1. A method for releasing a trailer from a tractor with a yanker, the tractor having a tractor frame below the trailer, the tractor having a fifth wheel mounted on the tractor frame, the fifth wheel having a release handle, the yanker comprising a yanker shaft extending between a first end connected to a yanker handle, and a second end connected to a yanker lever, the yanker further comprising a yanker hook connected to the yanker shaft proximate the second end, the yanker lever pointing generally opposite the direction of the yanker hook, the method comprising: a. hooking the yanker hook to engage the release handle of the fifth wheel; b. twisting the yanker handle at the end of the yanker shaft counterclockwise, thereby twisting the yanker around an axis of the yanker shaft to engage the yanker lever with the tractor frame to generate an upward and leftward force to place the release handle onto a shelf of the fifth wheel with the yanker hook; and c. pulling the yanker handle to release the trailer from the fifth wheel.