Patent ID: 7395919

Claim:
An enclosed belt conveyor assembly, comprising: an outer enclosed sleeve assembly, comprising: a pair of outer guides fixed to sides of the outer enclosed sleeve; an internally threaded member secured to each outer guide; and a plurality of bearing surfaces fixed to an inner portion of each outer guide; an inner enclosed sleeve assembly in operable slidable telescopic interaction internal to the outer enclosed sleeve, the inner enclosed sleeve assembly comprising: an enclosure; a take-up pulley on an axle, the take-up pulley supporting a continuous conveyor belt; a pair of bearings supporting the axle of the take-up pulley; a pair of support arms secured to sides of the enclosure, each support arm comprising: a bearing support operably supporting the bearing; an at least partially hollow support member that extends through the outer guide that is fixed to the outer enclosed sleeve, the support member slidably engaging the plurality of bearing surfaces to support the inner enclosed sleeve in substantially parallel telescopic relation to the outer enclosed sleeve assembly; a take up assembly operably connected to the support member and to the outer guide sleeve on the outer enclosed sleeve at an inboard portion; and a threaded actuator operably engaged to the internally threaded member and to the take up assembly at an outboard portion of the support member.