Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – By means advancing along terrain and guiding pipe or cable...
Patent
1984-06-08
1986-10-14
Husar, Cornelius J.
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
By means advancing along terrain and guiding pipe or cable...
405157, 371425, 414528, 198311, E02F 522, F16L 102, F16L 5700
Patent
active
046169571
ABSTRACT:
A machine for depositing pipeline padding material in a pipeline ditch in the form of an attachment for a bulldozer blade which is driven from the hydraulic system of the bulldozer and includes an endless conveyor belt forming the bottom of a horizontally oriented chute or trough which receives padding dirt from a dump truck body or the like and distributes it evenly in the pipeline ditch as the bulldozer with the padding machine mounted thereon moves alongside of the ditch. The padding machine includes a mounting structure attaching it to the bulldozer blade by utilizing hook-like frame members which open downwardly so that it can be dropped onto the bulldozer blade and a hydraulic drive motor and reduction gear is connected to the head pulley of the conveyor and is driven from a hydraulic pump associated with the bulldozer with control valve arrangements being provided for controlling the direction and speed of the conveyor in order to enable an even depth of padding material to be discharged into the ditch throughout its length.
REFERENCES:
patent: 3443836 (1969-05-01), Poltavtsev et al.
patent: 3583168 (1971-06-01), Horton
patent: 3596384 (1971-08-01), Neujahr
patent: 3701422 (1972-10-01), Downey
patent: 3981089 (1976-09-01), Burrows
patent: 4057917 (1977-11-01), Burrows
patent: 4301910 (1981-11-01), Price
patent: 4343389 (1982-08-01), Ponstein
patent: 4377365 (1983-03-01), Layh
Burrows Larry N.
Gregory Truman L.
Husar Cornelius J.
Jacobson Harvey B.
Stodola Nancy J.
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