| 4438902 |
Pipe string lift system |
— |
1984-03-27 |
| 4413925 |
Independently balanced support plates |
— |
1983-11-08 |
| 4408404 |
Pivotable articulated support shoe for hydraulic nozzle |
— |
1983-10-11 |
| 4407716 |
Liquid flow system including multi-axial liquid flow screening means for excluding oversized slender objects carried by a liquid |
Glenn E. Miller |
1983-10-04 |
| 4387518 |
Separable liquid flow screening means for excluding oversized, slender objects carried by a liquid, and dredge means including same |
— |
1983-06-14 |
| 4367601 |
Separable means for excluding oversized slender objects |
John H. Hall |
1983-01-11 |
| 4365787 |
Pipe string lift system |
— |
1982-12-28 |
| 4347675 |
Dredging means having means for excluding oversized slender objects |
— |
1982-09-07 |
| 4346937 |
Dredging apparatus including suction nozzles |
Robert M. Donaldson, Ted W. Christian, Glenn E. Miller |
1982-08-31 |
| 4347029 |
Pipe transfer system |
Robert M. Donaldson, Michael A. Cross, Harold MacPhaiden, Loren D. Skiles, Henry Schauer +1 more |
1982-08-31 |
| 4327505 |
Remotely steerable dredge vehicle |
Mark H. Hinman |
1982-05-04 |
| 4323216 |
Balanced support plates |
— |
1982-04-06 |
| 4319782 |
Means for controlling feed of particulate material into airlift pipe |
— |
1982-03-16 |
| 4319414 |
Dredgehead having forward water-deflecting means comprising two transverse elements |
Charles S. Garland |
1982-03-16 |
| 4311342 |
Dredge head with mechanical and pumping action |
— |
1982-01-19 |
| 4249324 |
Steerable ocean floor dredge vehicle |
— |
1981-02-10 |
| 4208813 |
Steerable ocean floor dredge vehicle |
— |
1980-06-24 |
| 4200999 |
Pivotable means for decreasing drag effects on a generally cylindrical dredge pipe |
— |
1980-05-06 |