Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – By means advancing along terrain and guiding pipe or cable...
Patent
1995-10-04
1997-05-27
Graysay, Tamara L.
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
By means advancing along terrain and guiding pipe or cable...
405154, 405161, 405174, F16L 1028
Patent
active
056325746
ABSTRACT:
A ditch backfilling device and apparatus therefor are disclosed. In particular, the ditch backfilling device includes a mainframe for supporting a compartment for storing the backfill material and a screening system for sorting and directing the backfill material into a ditch. The backfilling device includes a support for holding a roll of warning tape and an application roller for placing the unrolled portion of the warning tape above a uniform structure, such as a pipeline, within a layer of backfill material in the ditch. The warning tape is thereafter buried in subsequent layers of backfill material poured by the backfilling device. The backfilling device also includes a guide structure which is configured to follow the surface of the uniform structure. The guide structure positions a conduit adjacent the uniform structure for burial in the backfill material. The conduit may contain cables for the transmission of communication information or operating instructions.
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Klaymar Edward J.
Lebaigue Alain
Meteye Jean M.
Alstadt Lynn J.
Graysay Tamara L.
KNI Incorporated
Lagman Frederick L.
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