Suction dredge cutter head

Details Suction dredge cutter head Suction dredge cutter head

1981-11-13

1983-09-13

Crowder, Clifford D.

Excavating

Peat excavators

37 67, 241 84, E02F 392

Patent

active

044034288

ABSTRACT:
The rotatable cutter head of a suction dredge which is of rearwardly-divergent spiral toothed-rib construction has a crusher of open-work construction fixedly mounted therewithin and cooperating therewith to crush and reduce the size of hard lumps dug by the head to reduce damage to and clogging of the suction and discharge lines and the dredge pump. Preferably, the crusher is a frusto-conical grid having a flat sector which further cooperates with inner surface portions on the cutter head ribs that incline inwardly from the leading to the trailing edges of such portions.

REFERENCES:
patent: 1087269 (1914-02-01), Baltz
patent: 1713037 (1929-05-01), Ellis
patent: 2530951 (1950-11-01), Enright
patent: 2619292 (1952-11-01), Nichols, Jr. et al.
patent: 3375983 (1968-04-01), Von Eiff et al.
patent: 3808716 (1974-05-01), Verbeek
patent: 3945576 (1976-03-01), Kahmann
patent: 4050170 (1977-09-01), Proehl
patent: 4365427 (1982-12-01), Chapman, Jr.

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