Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Repair – replacement – or improvement
Patent
1986-01-15
1987-08-04
Husar, Cornelius J.
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
Repair, replacement, or improvement
405154, F16L 102
Patent
active
046842900
ABSTRACT:
An apparatus for below-ground driving of pipeline segments made from lengths of production pipe, especially those having rated pipeline widths that are not man-sized. Driving is effected by means of a driving apparatus, which is disposed in a jacking shaft and from there drives pipeline segments via a thrust bridge. The driving apparatus comprises threaded driving mechanisms disposed parallel to one another in the length of the pipeline segments. By means of the threaded drive mechanisms, the thrust bridge can be moved back and forth, via at least one motor drive means rotating the parallel threaded spindles of the threaded drive mechanisms about their axes of rotation. The field in which the apparatus is used is preferably sewer construction, involving sewer mains and household connection lines branching off from them. Both types of line can be driven forward out of the jacking shafts, in which the apparatus can be brought into a desired driving direction by rotating it in the shaft.
REFERENCES:
patent: 1946214 (1934-02-01), Kabigting
patent: 2325565 (1943-07-01), Williams
patent: 2383496 (1945-08-01), Nebolsine
patent: 3113628 (1963-12-01), Orcutt
patent: 3126766 (1964-03-01), Bent
patent: 3512433 (1970-05-01), Juhasz et al.
patent: 3955629 (1976-05-01), Turner
patent: 4388021 (1983-06-01), Weiss
patent: 4591299 (1986-05-01), Eckman
Neue Deliwa Zeitschrift, Heft 8/76, Seiten 272-275.
Greigg Edwin E.
Husar Cornelius J.
Stodola Nancy J.
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