Patent ID: 6994381
Filing Date: 2006-02-07
Classification: E03F,F16L,Y10S

Abstract:
1. A pipe coupling for interconnecting adjacent ends of first and second pipe sections, the end of the first pipe section having an annular corrugation, said coupling comprising: a generally cylindrical metal sleeve having first and second sides, said sleeve being formed from a sheet material and having at least one rigid and radially inwardly directed annular corrugation formed across its width prior to securement of said sleeve about the first pipe section end, said annular corrugation being located adjacent a free end of said sleeve on said first side thereof and defining an innermost diameter section of said sleeve; said annular corrugation being disposed on said first side of said sleeve so as to be oriented perpendicular to a longitudinal axis of said sleeve and configured to cooperatively engage the annular corrugation on the first pipe section end when said sheet is wrapped around the first pipe section end to secure said sleeve on the first pipe section end and thereby prevent separation of said sleeve from the first pipe section; and an elongated tubular bell on said second side of said sleeve having an inner wall of substantially constant diameter along a substantial length thereof and being adapted to slidably receive in an axial direction the second pipe section end within said sleeve, with no portion of said sleeve extending radially inwardly between said annular corrugation and said bell so that the first and second pipe section ends are capable of abutting; whereby said coupling is adapted to interconnect said adjacent ends of said first and second pipe sections.