Pipe stopper having a guide member to assist in guiding the stopper around a bend in a pipe

摘要

PCT No. PCT/GB92/02097 Sec. 371 Date Jun. 16, 1994 Sec. 102(e) Date Jun. 16, 1994 PCT Filed Nov. 12, 1992 PCT Pub. No. WO93/12368 PCT Pub. Date Jun. 24, 1993A pipe stopper capable of moving along a pipe to block the pipe at a point remote from an access point. The pipe stopper comprises an elongate resilient body member provided with a resilient reinforcing member. A plurality of circumferential sealing members are spaced along the length of the body member and seals the pipe stopper to the pipe. A guide member extends from the front or leading end of the pipe stopper and guides the pipe stopper around a bend and/or elbow in the pipe. The pipe stopper may be part of a pipe stopper system for placing the pipe stopper at a point remote from an access point and for subsequently retrieving the pipe stopper.