Fluid handling – With holder for solid – flaky or pulverized material to be...
Patent
1997-10-07
1999-07-27
Lee, Kevin
Fluid handling
With holder for solid, flaky or pulverized material to be...
251148, 15104061, B08B 904
Patent
active
059273194
ABSTRACT:
A pig launcher/receiver (10) having a quick-coupling action when being secured or removed from a pipeline or similar conduit. The pig launcher/receiver (10) generally includes first and second fittings (24, 26) that are coaxially aligned with each other, and sealing elements (32, 34) for sealing abutting axial ends of the first and second fittings (24, 26). The first fitting (24) has male threads on an exterior surface thereof. The end of the second fitting (26) opposite the first fitting (24) is closed, thereby forming a cavity (52) within which at least a portion of a pig (20) can be received. The closed end of the second fitting (26) includes an inlet/outlet (50) for venting the cavity (52) between the pig (20) and the closed end, thereby enabling the pig (20) to be more fully received within the cavity (52). The pig launcher/receiver (10) further includes a sleeve member (28) circumscribing the second fitting (26) and threadably engaged with the male threads of the first fitting (24). The sleeve member (28) and second fitting (26) are preferably configured and equipped such that fluid pressure must be released from the pipeline before the sleeve member (28) can be unthreaded from the first fitting (24). Optional features of the launcher/receiver (10) include a device (22) for retaining a pig (20) in the launcher/receiver (10), and a passage (18) intersecting the first fitting (24) to allow bypassing of fluid past the launcher/receiver (10) when a pig (20) is received therein.
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Hartman Domenica N.S.
Hartman Gary M.
Lee Kevin
LandOfFree
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