Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – By means advancing along terrain and guiding pipe or cable...
Patent
1985-09-06
1987-02-17
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...
405180, E02F 510, F16L 102
Patent
active
046436154
ABSTRACT:
The present invention relates to a process for determining the position in a substantially vertical plane of a supple pipe, such as a drain, in the course of being buried in the ground at the bottom of a trench by a working tool. According to the invention, this process is characterized in that the inclination of at least one sensor element connected to the tool is continuously detected, said inclination being indicative of the gradient of the increment of section of supple pipe which has just been laid in the bottom of the trench. The invention is applicable to the laying of drains in trenches.
REFERENCES:
patent: 3559415 (1971-02-01), Vaughan et al.
patent: 4031709 (1977-06-01), Blankemeyer
patent: 4150911 (1979-04-01), Droste et al.
patent: 4244123 (1981-01-01), Lazure et al.
patent: 4293238 (1981-10-01), Kuzin et al.
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