Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – By means advancing along terrain and guiding pipe or cable...
Patent
1987-06-19
1989-03-14
Corbin, David H.
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
By means advancing along terrain and guiding pipe or cable...
405174, F16L 102, H02G 900
Patent
active
048120782
ABSTRACT:
A mechanized unit is provided for digging a trench in the ground and laying elongate objects in the trench, including a motor driven vehicle, a digging wheel connected to the rear of the vehicle, and a reserve connected to the front of the vehicle and containing said elongate objects, and a guide device for laying said objects in the vicinity of the bottom of the trench, the device being connected to the vehicle, said mechanized unit further including a receptacle connected to the vehicle and containing a fine powdery material and means for feeding said material from the receptacle to the guide device so that, during formation of the trench by the digging wheel, said elongate objects are buried in the fine powdery material deposited in said trench.
REFERENCES:
patent: 2738745 (1956-03-01), Harpold
patent: 3203188 (1965-08-01), Evans
patent: 4208902 (1977-06-01), Courson et al.
patent: 4332511 (1982-06-01), Bradley et al.
patent: 4539765 (1985-09-01), Reece
patent: 4616957 (1986-10-01), Burrows et al.
Corbin David H.
ETS. Rivard S.A.
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