Patent ID: 8505671
Filing Date: 2013-08-13
Classification: B60K,B60Y

Abstract:
1. A drivable caster wheel assembly comprising: a support socket for mounting on a mobile base, the socket defining a journal; a support frame mounted on the support socket and comprising: an axle mounted on the at least one arm of the support frame; a wheel mounted on the axle and being rotatable with respect to the support frame about a substantially horizontal axis; a hydraulic motor mounted on the support frame and configured to rotate the wheel with respect to the support frame; a fluid transfer structure configured to transfer fluid from a fluid power source on the mobile base when the support socket is mounted on the mobile base to the motor for driving the wheel while maintaining an ability of the support frame and wheel to rotate with respect to the support socket about the substantially vertical axis; wherein the support frame and wheel are rotatable through at least one complete rotation with respect to the support socket.