Patent ID: 7651295

Claim:
An extension screed for a screed assembly of a paving vehicle, the screed assembly including a main screed, the extension screed comprising: a base movably connectable with the main screed, the base having opposing lateral ends; a first vertical actuator connectable with the main screed, the first vertical actuator being connected with the base and configured to linearly displace one lateral end of the base with respect to the main screed in opposing, generally vertical directions along a first vertical actuator axis, the first vertical actuator axis being fixed relative to the main screed; a second vertical actuator connectable with the main screed so as to be horizontally spaced from the first actuator, the second vertical actuator being connected with the base and configured to displace the other lateral end of the base with respect to the main screed in opposing, generally vertical directions along a second vertical actuator axis, the second vertical actuator axis being fixed relative to the main screed; a carriage movably connected with the base and configured to support an extension screed plate, the first vertical actuator and the second vertical actuator cooperating through the base to displace the carriage with respect to the main screed in opposing, generally vertical directions and to alternatively pivot the carriage with respect to the main screed within a generally vertical plane; and a horizontal actuator connected with the base and configured to linearly displace the carriage with respect to the base in opposing, generally horizontal directions along a horizontal actuator axis, the horizontal actuator axis being fixed relative to the carriage.