Submersible backfill machine
First Claim
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1. Apparatus for covering a submerged conduit disposed within a trench in a sea bottom with material from said sea bottom, which comprises:
- a sled positionable over said conduit in said trench on said sea bottom;
a pump supported by said sled, said pump including an intake side and a discharge side;
a pair of intake heads supported by said sled adjacent to said sea bottom on opposed sides of said trench;
means for connecting said intake heads to said intake side of said pump for the flow of water and entrained sea bottom material through said intake heads and into said pump;
and a conical shaped dispersion nozzle supported by said sled and positioned generally over said conduit and between and rearwardly of said intake heads, for directing the flow of water and entrained sea bottom material from said discharge side of said pump over said conduit and for diffusing said flow from said discharge side such that said entrained material settles into said trench to cover said conduit.
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Abstract
Submersible backfill machine for covering a submerged conduit disposed within a trench in a seabottom with material from the sea bottom, which includes a sled positionable over the conduit on the sea bottom. A pump is supported by the sled and is connected to an intake head that is adapted to pick up sea bottom material entrained in water drawn into the pump. A dispersion nozzle is connected to the discharge side of the pump to cause the entrained sea bottom material to settle into the trench and cover the conduit.
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Citations
9 Claims
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1. Apparatus for covering a submerged conduit disposed within a trench in a sea bottom with material from said sea bottom, which comprises:
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a sled positionable over said conduit in said trench on said sea bottom; a pump supported by said sled, said pump including an intake side and a discharge side; a pair of intake heads supported by said sled adjacent to said sea bottom on opposed sides of said trench; means for connecting said intake heads to said intake side of said pump for the flow of water and entrained sea bottom material through said intake heads and into said pump; and a conical shaped dispersion nozzle supported by said sled and positioned generally over said conduit and between and rearwardly of said intake heads, for directing the flow of water and entrained sea bottom material from said discharge side of said pump over said conduit and for diffusing said flow from said discharge side such that said entrained material settles into said trench to cover said conduit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification