Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,...
Patent
1986-08-04
1988-04-19
Taylor, Dennis L.
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
30 925, 83178, 72 70, 72 71, 166 552, 138 97, 405184, F16L 100, F16L 5500
Patent
active
047385650
ABSTRACT:
A method for replacing an existing buried pipe of a crackable, fracturable material. By the application of a local intense pressure, the pipe is cracked and fractured into irregular fragments which are spread outwardly to provide space for a new replacement tubular assembly which is moved into the space as the pipe is fractured and the fragments spread. At least a portion of the outward spreading of the fragments occurs under the action of the intense local pressure. An apparatus used to carry out the method may be pushed and/or pulled through the existing main, and the pushing force may be applied by percussive action.
REFERENCES:
patent: 652367 (1900-06-01), Law
patent: 928361 (1909-07-01), Cockburn
patent: 1001205 (1911-08-01), Lovell
patent: 1519882 (1924-12-01), Stewart et al.
patent: 1618368 (1927-02-01), Dietle
patent: 2163384 (1939-06-01), Stevens
patent: 2502711 (1950-04-01), Evans
patent: 2638165 (1953-05-01), Barber
patent: 2834106 (1958-05-01), Conder
patent: 2947253 (1960-08-01), Cirilo
patent: 2983042 (1961-05-01), Frantz et al.
patent: 3023040 (1962-02-01), Cawley et al.
patent: 3181302 (1965-05-01), Lindsay
patent: 4003122 (1977-01-01), Overmyer et al.
patent: 4100980 (1978-07-01), Jenne
patent: 4118940 (1978-10-01), Beane
England Roger
Streatfield Roy
Wilson Francis D.
British Gas Corporation
Taylor Dennis L.
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