Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Submerging – raising – or manipulating line of pipe or cable...
Patent
1984-03-06
1985-12-17
Taylor, Dennis L.
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
Submerging, raising, or manipulating line of pipe or cable...
156195, 156175, 405174, 405156, F16L 104
Patent
active
045589712
ABSTRACT:
A filament or tape winding machine equipped with an automatically retractable mandrel for constructing in place the wall of a pipeline in a continuous and uninterrupted manner. The winding and the building up of the pipeline wall progress at a velocity equal to that of the extraction of the mandrel from inside of the completed pipeline. The filament or tape reinforcing material is bonded in place with a resin system applied and cured at fabrication stations, during the pipeline manufacturing process, located where the mandrel is supporting the pipeline wall. This mandrel supporting function ceases at a point where the pipeline wall has enough strength to support itself. The reinforcement material winding mechanism, the mandrel extracting mechanism and the resin curing equipment are all mounted on a vehicle or train of vehicles propelled to move forward and leave in place behind the finished fabricated pipeline ready for use. The internal and external surfaces of the pipeline wall are made of materials suitable for the intended pipeline application and type of weather exposure anticipated. The incorporation of these materials in tape form is also performed by winding these tapes the same way and in a programmed manner. The pipeline fabricating machinery can also be mounted aboard a ship to lay pipelines over or under water. The ship then moves forward and also leaves behind the completed and ready-to-use pipeline. From the location where the manufacturing starts to the location where that process ends, the finished pipeline wall then consists of a monolithic, jointless, solid and homogeneous structure.
REFERENCES:
patent: 2605202 (1952-07-01), Reynolds
patent: 2723705 (1955-11-01), Collins
patent: 3130104 (1964-04-01), Lewis et al.
patent: 3740958 (1973-06-01), Cadwell
patent: 3769127 (1973-10-01), Goldsworthy et al.
patent: 3855031 (1974-12-01), McNeely et al.
patent: 4341580 (1982-07-01), Ahmed et al.
patent: 4343672 (1982-08-01), Kanao
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