Patent ID: 6705816
Filing Date: 2004-03-16
Classification: B25J,H01L

Abstract:
An apparatus for transporting a workpiece relative to a housing, said apparatus comprising:a) a sleeve mounted to rotate relative to the housing; b) a shaft mounted coaxially within the sleeve, the shaft being mounted to rotate relative to the sleeve and also to rotate relative to the housing; c) a linking arm fixedly attached to one end of the sleeve; d) a transport arm rotatably attached to the other end of the linking arm, wherein the transport arm could be adapted to support the workpiece; e) means for coupling the transport arm to the shaft so that rotation of the sleeve relative to the shaft causes the transport arm to rotate relative to the linking arm; f) means for rotating the sleeve; and g) locking means for locking the shaft to the sleeve, whereby the shaft and the sleeve rotating together relative to the housing, and for locking the shaft to the housing, whereby the sleeve rotating relative to the shaft and the housing.