Sewer pipe leak stopper

Claim 1

A DEVICE FOR REPAIRING CONDUITS COMPRISING A PAIR OF DISC MEMBERS OF LIKE DIAMETER, MEANS SECURING SAID DISC MEMBERS IN SPACED PARALLEL RELATION, A PLURALITY OF SHOE MEMBERS SLIDABLY DISPOSED BETWEEN SAID DISC MEMBERS AND BEING MOVABLE OUTWARDLY, ARCUATE RIGID BAR MEANS NORMALLY BEING DISPOSED INWARDLY, ARCUATE RIGID BAR MEANS SECURED TO AT LEAST CERTAIN OF THE SHOE MEMBERS AND PERIPHERALLY COVERING THE SPACE BETWEEN THE ADJACENT SHOE MEMBERS, THE BAR MEANS AND THE SHOE MEMBERS BEING SHAPED TO DEFINE WITH THE OUTER CIRCUMFERENTIAL PORTIONS OF SAID DISC MEMBERS A SUBSTANTIALLY ANNULAR SPACE ADAPTED TO RECEIVE SEALING MATERIAL, MEANS TO GUIDE SAID DISC MEMBERS THROUGH A CONDUIT, A TAPERED WEDGE MEMBER EXTENDING AXIALLY THROUGH SAID DISC MEMBERS AND BEING ENGAGEABLE WITH THE INNER EDGES OF SAID SHOE MEMBER, AND MEANS TO MOVE THE WEDGE MEMBERS LONGITUDINALLY IN A DIRECTION TO EXPAND SAID SHOE MEMBERS, WHEREBY TO FORCE THE SEALING MATERIAL AGAINST THE INTERIOR WALL OF THE CONDUIT.