Patent ID: 7757332
Filing Date: 2010-07-20
Classification: B08B

Abstract:
1. In a drain cleaning machine having a supporting frame, a cable containing enclosure, supported upon said frame, for rotation about an axis of rotation, a drain cleaning cable coiled within said enclosure about said axis of rotation, the improvement comprising: a) a pair of axially opposed support wheels rotatingly attached to the rear portion of said supporting frame, said wheels comprising: b) a solid elastomeric tire, having a thickness of one half inch, affixed to said tire mounting rim, said tire comprising a neoprene rubber compound having a Shore Durometer Hardness of between 70 and 80, c) a pedestal affixed to the forward portion of said support frame, and d) a solid elastomeric shoe, having a thickness of one inch, affixed to the bottom of said pedestal for contact with a supporting surface, wherein said shoe comprises a substantially flat, rectangular bottom surface sized and shaped to engage an underlying surface, said shoe comprising a neoprene rubber compound having a Shore Durometer Hardness of between 70 and 80.