Pipes and tubular conduits – With closures and plugs – Inflation stem type
Patent
1983-03-21
1984-12-04
Shepperd, John W.
Pipes and tubular conduits
With closures and plugs
Inflation stem type
138 98, 29157C, 29157R, 291574, 2940212, 411 24, 411 44, F16L 5512, F16L 5516
Patent
active
044858477
ABSTRACT:
A generally cylindrical tube repair assembly (26,80) having an outer diameter approximately equal to the tube inner diameter. The assembly includes three main components, one of which is compressed and expanded by the other two into sealing engagement with the tube wall. The components include an elongated tension member (28) having an enlarged head portion (30) at its upper or lead end, and a stem portion (34) at the other end. A generally cylindrical expander ring member (40) is disposed about the lower portion of the tension member, and a ferrule-type, radially expandable compression member or sleeve (44) is interposed between the enlarged head and the ring. Means (42) are included for immobilizing the ring member against the tube sheet (12) while drawing down the tension member head. Tapered surfaces (46,48,50,52) on the sleeve, the head, and the ring produce a wedge-like interaction therebetween, such that the upper and lower surfaces of the sleeve expand outwardly into sealing engagement (70,74) with the adjacent tube wall (16').
REFERENCES:
patent: Re30802 (1981-11-01), Rogers
patent: 710534 (1902-10-01), Steward
patent: 2855003 (1958-10-01), Thaxton
patent: 2951284 (1960-09-01), Caldwell
patent: 3156373 (1964-11-01), Willis
patent: 3542076 (1970-11-01), Richardson
patent: 3708098 (1973-01-01), Roznovsky
patent: 4114654 (1978-09-01), Richardson
patent: 4130232 (1978-12-01), Anderson
Combustion Engineering Inc.
Ristas L. James
Shepperd John W.
LandOfFree
Compression sleeve tube repair does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Compression sleeve tube repair, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compression sleeve tube repair will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1577978