Alternate flow suction dredge

Details Alternate flow suction dredge Alternate flow suction dredge

1975-12-15

1977-11-22

Crowder, Clifford D.

Excavating

Peat excavators

37 58, 37DIG18, E02F 392

Patent

active

040589145

ABSTRACT:
Suction dredges of a character having a flexibly mounted suction tube ladder provided on its free end with a suction head having dual mouths opening in opposite directions and a valve therein to afford selective opening of one or the other of the mouths. There is also a power driven auger to urge the suction head firmly against the work area.

REFERENCES:
patent: 477827 (1892-06-01), Souther
patent: 516066 (1894-03-01), Titcomb
patent: 548242 (1895-10-01), Wood et al.
patent: 1701430 (1929-02-01), Thurston
patent: 1754746 (1930-04-01), Ewig
patent: 1777575 (1930-10-01), Penney
patent: 2160761 (1939-05-01), Spadaro
patent: 2414797 (1947-01-01), Brown
patent: 2762136 (1956-09-01), Bell
patent: 2995842 (1961-08-01), Korste
patent: 3171220 (1965-03-01), Schram
patent: 3748760 (1973-07-01), Schnell

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