Pipeline retard, support and protection method

Details Pipeline retard, support and protection method Pipeline retard, support and protection method

1975-07-14

1977-12-20

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Outside of mold sintering or vitrifying of shaped inorganic...

Including plural heating steps

61106, 264 32, 264 464, 264 467, 264 469, B29D 2704, E02D 3106, F16L 58101, F16L 5900

Patent

active

040634299

ABSTRACT:
A pipeline retard, support and protection method wherein a fast-setting expandable foam is placed in a trench at spaced locations below and around a pipeline to create spaced retards and support pads in situ. Each retard and/or support pad is created in the absence of forms or other foam molding means for the expanding foam. The retards may be keyed to the trench walls and base for securement. The system is also adaptable to encapsulating a portion of the pipeline which transverses a roadbed.

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