Interior sewer pipeline scarifying apparatus
AssigneeMac & Mac Hydrodemolition Inc.
InventorsGerard J. MacNeil, David B. MacNeil, Gordon W. MacNeil, Vernon G. Bose
Life of this patent
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Abstract
This application discloses an apparatus for scarifying the interior surface of a sewer pipe, which can remain in the sewer under active flow conditions. The apparatus includes at least one scarifying head, which may transverse back and forth along a rail assembly, which is configured to match the circumferential shape of the sewer pipe. The scarifying head includes a nozzle assembly and driving assembly. The nozzle assembly, located at the outer end of the scarifying head has nozzles. The nozzles emit jets of water under pressure to clean or scarify the interior surface of the pipe.
Claims22
An apparatus for scarifying an interior surface of a sewer pipe, comprising:
- (a) a support assembly moveable along an interior of said sewer pipe supported from a bottom half thereof;
- (b) a rail assembly supported on its ends by said support assembly juxtaposed to the interior surface of said sewer pipe, said rail assembly matching a circumferential trajectory of said sewer pipe;
- (c) at least one scarifying head coupled to and moveable in either direction along said rail assembly, said scarifying head comprising;
- (i) a nozzle assembly coupled to said scarifying head having at least one nozzle, operative to rotate or oscillate and emit a jet of fluid against the interior surface of said sewer pipe and to scarify the interior surface of said sewer pipe;
- and
- (ii) a driving assembly coupled to said scarifying head, operative to drive said scarifying head along said rail assembly over a pre-selected trajectory.
Dependencies are inferred from the claim text.