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Class Information
Number: 37/335
Name: Excavating > Beneath a body of water (e.g., dredger) > Suction > Pipe or nozzle structure
Description:
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7591088 |
Suction dredge system and method |
Sep. 22, 2009 |
| 7552551 |
Suction head for sediment dredge |
Jun. 30, 2009 |
| 6979152 |
Intake nozzle for vacuum conveyor |
Dec. 27, 2005 |
| 6966132 |
Method and device for moving subsea rocks and sediments |
Nov. 22, 2005 |
| 6874261 |
Method for treating an underwater bed |
Apr. 5, 2005 |
| 6618966 |
Fluid lance apparatus |
Sep. 16, 2003 |
| 6263594 |
Dredging system |
Jul. 24, 2001 |
| 5979088 |
Dredging installation |
Nov. 9, 1999 |
| 5913604 |
Dredging installation |
Jun. 22, 1999 |
| 5553976 |
Fluid riser between seabed and floating vessel |
Sep. 10, 1996 |
| 5546682 |
Sediment relocation machine |
Aug. 20, 1996 |
| 5421105 |
Dredging system |
Jun. 6, 1995 |
| 4926571 |
Connection for connecting compressed-air lines |
May. 22, 1990 |
| 4839061 |
Method and apparatus for treatment of hazardous material spills |
Jun. 13, 1989 |
| 4764137 |
Floatable dredge hose |
Aug. 16, 1988 |
| 4681372 |
Deep sea mining apparatus |
Jul. 21, 1987 |
| 4622766 |
Hand held suction nozzle with metal detector |
Nov. 18, 1986 |
| 4552084 |
Suction dredger |
Nov. 12, 1985 |
| 4521305 |
Rotating self-cleaning screen |
Jun. 4, 1985 |
| 4479741 |
Device for laying underground or digging up subsea conduits |
Oct. 30, 1984 |
| 4470208 |
Dredge with adjustable bottom support for suction pipe and method |
Sep. 11, 1984 |
| 4429476 |
Self-immersing jet pump |
Feb. 7, 1984 |
| 4423559 |
Gold dredge suction nozzle |
Jan. 3, 1984 |
| 4413925 |
Independently balanced support plates |
Nov. 8, 1983 |
| 4411079 |
Suction drag system |
Oct. 25, 1983 |
| 4408404 |
Pivotable articulated support shoe for hydraulic nozzle |
Oct. 11, 1983 |
| 4373276 |
Device for conveying a slurry, such as sand or gravel or the like, lying under water |
Feb. 15, 1983 |
| 4372337 |
Rotary distributor valve |
Feb. 8, 1983 |
| 4352251 |
Hand operated suction dredge head and hydraulic submersible pump assembly |
Oct. 5, 1982 |
| 4351122 |
System for controlling the position of the drag pipe of a dredge |
Sep. 28, 1982 |
| 4346937 |
Dredging apparatus including suction nozzles |
Aug. 31, 1982 |
| 4319414 |
Dredgehead having forward water-deflecting means comprising two transverse elements |
Mar. 16, 1982 |
| 4319782 |
Means for controlling feed of particulate material into airlift pipe |
Mar. 16, 1982 |
| 4302052 |
Modular hydraulic mining tool with slurry inlet metering |
Nov. 24, 1981 |
| 4282661 |
Towing suction device for a dredging craft |
Aug. 11, 1981 |
| 4282661 |
Towing suction device for a dredging craft |
Aug. 11, 1981 |
| 4249324 |
Steerable ocean floor dredge vehicle |
Feb. 10, 1981 |
| 4217709 |
Submarine sand sampler |
Aug. 19, 1980 |
| 4200999 |
Pivotable means for decreasing drag effects on a generally cylindrical dredge pipe |
May. 6, 1980 |
| 4149739 |
Dual passage pipe for cycling water to an undersea mineral aggregate gathering apparatus |
Apr. 17, 1979 |
| 4147454 |
Method of and apparatus for construction of pipes for marine use, as for ocean mining and the like |
Apr. 3, 1979 |
| 4112695 |
Sea sled for entrenching pipe |
Sep. 12, 1978 |
| 4108499 |
Method and control system for controlling a suspended implement |
Aug. 22, 1978 |
| 4087981 |
Buoyant self-propelled underwater trenching apparatus |
May. 9, 1978 |
| 4074535 |
Self-cleaning fixed dredge |
Feb. 21, 1978 |
| 4027407 |
Jet flow alternator |
Jun. 7, 1977 |
| 3992735 |
Flotation ring for dredge pipe lines |
Nov. 23, 1976 |
| 3956834 |
Dredge ladder shock mounting arrangements |
May. 18, 1976 |
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