Tube sleeve

Details Tube sleeve Tube sleeve

1984-01-19

1986-06-03

Bryant, III, James E.

Pipes and tubular conduits

Repairing

Patches

138 97, 29157R, 29157C, F16L 5512, F16L 5516

Patent

active

045923914

ABSTRACT:
A repair sleeve assembly (12) secured entirely within a tube (16). A hollow tension member (18) has an enlarged head (26), a lower externally threaded stem (28) and a generally cylindrical body portion (30) intermediate the head and stem. A segmented sheath surrounds the tension member and includes a generally cylindrical nut member (24), a ring member (22) and a sleeve member (20), which are operatively arranged such that when the tension member is drawn downward, the enlarged head and lower ring member compress the sleeve to form seals against the tube wall. A tool for effecting the seal is also disclosed, including an inner rod (38) having an upper end (40) adapted to engage the lower end of the tension member, for aligning the tool relative to the repair assembly, and lugs (42) carried circumferentially on the rod to engage the tension member. A chuck member (44) is adapted to move longitudinally and rotationally with respect to the inner rod, and carries tangs (46) for engaging the nut member. The seal is effected by advancing the nut member relative to the stem, whereby the sleeve (20) is compressed between the head (26) and the ring (22) into engagement with the tube wall.

REFERENCES:
patent: 184791 (1876-11-01), McConnell
patent: 2855003 (1958-10-01), Thaxton
patent: 3692059 (1972-09-01), Ice
patent: 4436117 (1984-03-01), Martin
patent: 4474216 (1984-10-01), Noe
patent: 4485847 (1984-12-01), Wentzell

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