Excavating – Peat excavators
Patent
1991-10-25
1992-12-22
Reese, Randolph A.
Excavating
Peat excavators
37 58, 37DIG1, 406 19, E02F 388
Patent
active
051724979
ABSTRACT:
A suction dredge for mining solids from a water bottom, includes a floating barge, an elongated tubular suction line extending between the barge and the water bottom, a boom for raising and lowering the elongated tubular suction line, a valve in the elongated tubular suction line for allowing water to enter the elongated tubular suction line, a dredge pump for causing solids to be drawn upward from the water bottom, through the elongated tubular suction line, to the floating barge, the dredge pump having a cavitation level at which the vacuum level is so high that the dredge pump ceases to pump, and an automatic control device for controlling the degree of opening of the valve, the automatic control device allowing just enough water to mix with the solids such that the dredge pump is maintained substantially at but below the cavitation level, the automatic control device including a measuring device for measuring the vacuum level of the dredge pump, and causes the valve to open more as the vacuum level rises and to close more as the vacuum level drops.
REFERENCES:
patent: 2603234 (1952-07-01), Hofer
patent: 2938536 (1960-05-01), Ehrenberg
patent: 3111778 (1963-11-01), Fonnesbeck
patent: 3119344 (1964-01-01), Hoffman
patent: 3263615 (1966-08-01), Hofer
patent: 3448691 (1969-06-01), Frazier
patent: 3514881 (1970-06-01), Hadjidakis
patent: 3772805 (1973-11-01), De Koning
patent: 4278365 (1981-07-01), Sandberg
patent: 4351122 (1982-09-01), Cornelis et al.
patent: 4386473 (1983-06-01), Amann et al.
patent: 4444229 (1984-04-01), Beck
patent: 4628623 (1986-12-01), Deal
patent: 5083386 (1992-01-01), Sloan
Legendre Huey
Lemonds Stephen C.
Steed Randy L.
Thomas Virgil H.
LOR, Inc.
McBee J. Russell
Reese Randolph A.
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