Limited angle piggable swivel

Details Limited angle piggable swivel Limited angle piggable swivel

E - Fixed Constructions

21

B

166/46.2

E21B 43/01 (2006.01) F16L 27/08 (2006.01) F16L 39/06 (2006.01)

Patent

CA 1163188

ABSTRACT A limited angle piggable swivel comprising a stationary cylindrical shaft and a rotatable housing member circumferentially mounted around the shaft in sealing engagement. The shaft has a conduit extending from the base to the side. The housing member has a passageway extending therethrough. The rotatable housing member is mounted on the shaft to permit coaxial alignment of the inner end of the housing passageway with the side end of the shaft conduit when the housing member is rotated around the shaft to the proper position. In a preferred embodiment of the present invention, both the inner end of the passageway and the side end of the conduit are flared outwardly to enable the swivel to be pigged in either direction when the longitudinal axis of the passageway is offset from the longitudinal axis of the side end of the conduit. -10-

388802

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