Pipes and tubular conduits – Repairing
Patent
1998-10-15
2000-11-07
Hook, James
Pipes and tubular conduits
Repairing
138 98, F16L 5518
Patent
active
061421871
ABSTRACT:
A device for repairing a pipe internally includes a body and a drill assembly mounted on the body. The drill assembly has upper and lower arms, pivotable between a closed position in which the arms occupy a radial area not substantially greater than a diameter of the body and an open position in which the arms bear against substantially opposing points of the pipe wall to stabilize the drill assembly within the pipe. In the preferred embodiment for repairing pipe joints a hydraulic drill head bears against the pipe wall when the arms are in the open position and drills a hole for a sealant nozzle mechanism mounted on the upper arm, which swings into position in front of the drill head to inject a sealant into the pipe joint through the drill hole and seal the joint.
REFERENCES:
patent: 2977994 (1961-04-01), Xenis
patent: 3315017 (1967-04-01), Kemp
patent: 3606913 (1971-09-01), Yie
patent: 3718978 (1973-03-01), Van Koevering et al.
patent: 3753766 (1973-08-01), Brown et al.
patent: 4178875 (1979-12-01), Moschetti
patent: 4245970 (1981-01-01), St. Onge
patent: 4421698 (1983-12-01), Vanderlans
patent: 4442891 (1984-04-01), Wood
patent: 4504204 (1985-03-01), Koga
patent: 4582551 (1986-04-01), Parkes et al.
patent: 4646787 (1987-03-01), Rush et al.
patent: 4724108 (1988-02-01), Jurgenlohmann et al.
patent: 4741795 (1988-05-01), Grace et al.
patent: 4986314 (1991-01-01), Himmler
patent: 5044824 (1991-09-01), Long et al.
patent: 5223272 (1993-06-01), Pringle
patent: 5253956 (1993-10-01), Fisco et al.
patent: 5259880 (1993-11-01), Fujita et al.
patent: 5527169 (1996-06-01), Goldenberg et al.
patent: 5878783 (1999-03-01), Smart
Goldenberg Andrew A.
Kuzan Pawel
Wiercienski Jacek
Consolidated Edison Company of New York, Inc.
Eisen Mark B.
Hook James
The Consumer's Gas Company Ltd.
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