Patent ID: 7108272
Filing Date: 2006-09-19
Classification: B60D

Abstract:
1. A bumper-pull style trailer hitch operatively attached to a towing vehicle having a front, rear, a transverse direction parallel to a rear axle of the towing vehicle, and a fore-aft direction generally parallel to a travel direction of the towing vehicle, said bumper-pull style trailer hitch adapted to be connected to a trailer, the bumper-pull style trailer hitch comprising: two transversely spaced-apart base frame members, both operatively attached to the towing vehicle; a bumper-pull style hitch frame, operatively, pivotally attached to the two base frame members such that a rear portion of the hitch frame may move vertically relative to the base frame members; and a gas-filled apparatus, disposed under the towing vehicle and operatively attached to at least one of the two base frame members and the hitch frame such that vertical movements of the rear portion of the hitch frame relative to the base frame members result in changes in a pressure of the gas within the gas-filled apparatus.