Swell compensator for suction dredging system

Details Swell compensator for suction dredging system Swell compensator for suction dredging system

1976-09-07

1978-07-25

Crowder, Clifford D.

Excavating

Peat excavators

37 72, 37 66, E02F 390

Patent

active

041020642

ABSTRACT:
A suction dredging system comprises a vessel having an arm pivotally secured to it which can be positioned and held in an obliquely downwardly directed position and which itself comprises upper and lower parts which are pivotally interconnected with a link between them, the link making an angle with both parts of the arm so that motions of the upper part of the arm in the vertical plane are not or are hardly transmitted to the lower part of the arm by both parts of the arm. The lower part supports a suction mouth of a suction pipe as well as a rotary cutter whose shaft is disposed in the vertical plane of the arm, the lower part of the arm being stabilized by means of a hydropneumatic spring. A second hydropneumatic spring acts horizontally on the assembled link and lower part of the arm and cutter.

REFERENCES:
patent: 3579872 (1971-05-01), Jantzen
patent: 3739503 (1973-06-01), Barker et al.
patent: 3777376 (1973-12-01), Turner et al.

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