F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
285/64
F16L 15/04 (2006.01) B21D 39/04 (2006.01) F16L 13/00 (2006.01)
Patent
CA 1164023
JACK E. GIBSON OUR FILE #541 POSITIVE SEAL STEEL COUPLING APPARATUS AND METHOD THEREFOR ABSTRACT OF THE INVENTION Method and apparatus by which lengths of seamless pipe are rapidly and economically fabricated into a fluid conveying pipeline. Steel tubular fluid conducting members in the form of pipe lengths are joined together by a steel coupler sleeve. The sleeve has opposed cavities which receive adjacent marginal ends of the members. Each marginal end of the pipe is forced into one cavity of the sleeve with great force such that the sleeve cavity holds the pipe ends together with a strong friction fit. A seal- ing substance is applied to the marginal ends of the pipe. A special hydraulic machine engages and forces the marginal ends of the pipe into the sleeve cavities with a twisting motion, which enhances the connection effected between the sleeve and the mar- ginal end of the pipe length. - 1 -
345279
Borden Ladner Gervais Llp
Gibson Jack E.
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