Pipe flange repair clamp

Claim 1

A REPAIR CLAMP FOR A LEAKING FLANGED PIPE COUPLING OF THE TYPE INCLUDING OPPOSED RADIAL FLANGES HAVING RAISED CENTRALLY DISPOSED ANNULAR FACES AND A GASKET BETWEEN THE RAISED FACES WHEREBY THE PORTIONS OF THE FLANGES RADIALLY OUTWARD OF THE RAISED ANNULAR FACES ARE SPACED APART BY AN ANNULAR AXIAL GAP AND PROVIDED WITH AXIALLY EXTENDING BOLT MEANS FOR SECURING THE FLANGES TOGETHER, SAID REPAIR CLAMP COMPRISING A PLURALITY OF SEGMENT PLATES ADAPTED TO BE INSERTED RADIALLY INTO THE AXIAL GAP BETWEEN THE FLANGES, SAID PLURALITY OF SEGMENT PLATES EXTENDING CIRCUMFERENTIALLY AROUND SAID AXIAL GAP, EACH OF SAID SEGMENT PLATES HAVING AN INNER PERIPHERAL FACE HAVING A RADIUS SUBSTANTIALLY EQUAL TO THE RADIUS OF THE OUTER PERIPHERY OF SAID RAISED FACES, EACH OF SAID SEGMENT PLATES HAVING AN OUTER EDGE EXTENDING ADJACENT THE OUTER PERIPHERY OF SAID FLANGES, GASKET MEANS POSITIONED BETWEEN THE OUTER PERIPHERY OF SAID RAISED FACES AND THE INNER PERIPHERAL FACES OF SAID SEGMENT PLATES, AND CLAMP MEANS EXTENDING AROUND THE OUTER PERIPHERY OF SAID FLANGES AND ADAPTED TO FORCE SAID SEGMENT PLATES RADIALLY INWARD TO COMPRESS SAID GASKET MEANS BETWEEN THE INNER PERIPHERAL FACES OF SAID SEGMENT PLATES AND THE OUTER PERIPHERY OF SAID RAISED FACES TO SEAL AGAINST LEAKAGE BETWEEN SAID RAISED FACES.