Suction head for dredgers

Details Suction head for dredgers Suction head for dredgers

1976-11-10

1978-04-11

Crowder, Clifford D.

Excavating

Peat excavators

37 57, 37 66, 15422, 302 15, E02F 388

Patent

active

040831345

ABSTRACT:
A trailing dredger comprises a vessel, a pump, a suction pipe connected with said pump and a suction head connected with said suction pipe and having a suction chamber having at least one suction opening and communicating with the suction pipe, said suction head being adapted to roll along a soil beneath the water by means of a hollow roller being freely rotatable about an axis transverse of the direction of movement of the dredger and being journalled on the suction head, said roller being provided with a contact surface. The surface of the roller is provided with openings which concentrate the suction force and present an ever-changing contact pattern with the soil which correspondingly provides an ever-changing flow pattern to erode and pick up the soil.

REFERENCES:
patent: 411183 (1889-09-01), Bowers
patent: 1527828 (1925-02-01), Barr
patent: 3761997 (1973-10-01), Frazier

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