公开(公告)号：EP0539498B1

公开(公告)日：1997-09-24

申请号：EP91913837.0

申请日：1991-07-12

申请人： PIPE REHAB INTERNATIONAL, INC.

发明人： ALLISON, Arlie ,  TARSHA, Simon ,  McMILLAN, James, S.

IPC分类号： E03F9/00 ,  B08B9/02

CPC分类号： E03F9/002 ,  B08B9/047 ,  B08B9/051 ,  Y10T409/304424

摘要： An apparatus (11) is shown for cleaning a pipe. The apparatus includes a rigid stem (13) and a motor (27) stationarily mounted on the stem (13). An outer body surrounds the motor (27) and is rotatably mounted on the rigid stem. A fluid conduit (37) is connected to the stem (13) and to a source of fluid under pressure for supplying fluid to the motor (27) for driving the motor. The fluid conduit (37) also connected to a pulling unit for pulling the apparatus (11) through the pipe to be cleaned. Fluid supplied through the fluid conduit to the stem and through the stem to the fluid powered motor (27) provides rotational propulsion to turn the outer body (47) as the apparatus (11) is moved through the pipe to be cleaned.