Class 37/320 - With pumping chamber

Subclass of Class 37 - Excavating
Definition: Apparatus including an enclosure intermediate to the suction
No. of patents: 40
Last issue date: 04/01/2008

Number	Title	Issue Date
7350322	Dewatering system apparatus and method for dredging buckets A dewatering apparatus for removing water from the interior volume of a closed, loaded clamshell dredging bucket. The dewatering system comprises at least one conduit adapted for support from a clamshell type dredging bucket. The conduit has a first end adapted for ...	04/01/2008
7334358	Portable dredging equipment A portable dredging apparatus comprising a cutter housing in communication with a hydraulic power supply and a discharge pump through lengths of tubing whereby said cutter housing is submersible. The cutter housing is comprised of a platform having walls depending t...	02/26/2008
7093382	Power diversion system for a hydraulic dredge A power diversion system for a hydraulic dredge diverts any or all available prime mover power to slurry production. An electronic control module (ECM) on the dredge continuously communicates with the prime mover ECM to determine the current available power of the d...	08/22/2006
7089693	Dredging method and apparatus An improved hydraulic dredging apparatus for removing a sediment layer from an underlying substrate lying below a water surface includes a receptacle having an open-front portion through which is sediment is collected, means for attaching the dredging apparatus to t...	08/15/2006
7086472	Device and method of collecting solids from a well Exemplary embodiments include a method and a device for temporary storage of solid particles such as drill cuttings from a hole section for surface casing in a wellbore. In certain embodiments, the device having at least one collecting device placed on the seabed ne...	08/08/2006
7083734	Method and apparatus for cleaning a water area A method for cleaning a water area including dredging, via a dredging apparatus, waste from the water area through a suction pipe into a sedimentation basin, generating a flow of the dredged waste from the water area to the sedimentation basin via siphonage and vari...	08/01/2006
6910319	Hydrojet for cutting plant growth from waterways An apparatus and method for cutting plant growth from waterways to promote fluid passage through such waterway. Water under high pressure is forced through a nozzle orifice to cut, chop and/or pulverize the aquatic plant matter. The nozzle is on a spray-head assembl...	06/28/2005
6640470	Contaminated sediment remediation vessel A method is described for containing dispersed particulate or soluble matter during contaminated sediment remediation operations in the marine environment. The preferred method comprises the use of a specially designed marine vessel that establishes a neg...	11/04/2003
6578293	Suction excavator A suction excavator including an air pump for generating a flow of air and a nozzle through which air is drawn under the influence of the air pump, the nozzle being arranged when in use to suck up spoil from an excavation, and a mechanism for separating s...	06/17/2003
6079130	Portable gold mining dredge A portable gold mining dredge for use in collecting potentially gold containing aggregate from streambeds for subsequent classification and separation. The dredge has a receptacle, comprised of a drum with a water-tight lid, for receiving the aqueous dred...	06/27/2000
6003251	Debris separator for dredge or slurry pump A debris separator for a dredge pump includes a body portion having a top ll, a bottom wall, first and second side walls, and an aft end wall, the aft end wall defining a separator outlet for connection to the pump, a funnel portion having an entry end de...	12/21/1999
5593252	Method of and device for suction transporting A material is transported by suction through a transporting line (1,2) connected with a suction source (4) and communicating with atmosphere through a passage (8), and the area and shape of the passage is periodically changed by a power-drive operated ele...	01/14/1997
5428908	Apparatus and method for subsidence deepening A method of hydraulic dredging employing apparatus and a procedure for subsidence dredging for subsurface removal of sandy strata which results in subsidence, or drop in elevation of the bottom deposits of a body of water, wherein sand is mined laterally ...	07/04/1995
5311682	Hybrid dredge A hybrid dredging apparatus uses a clamshell attached to a rigid boom to dig and remove material. The clamshell then deposits the material into the hopper of a positive displacement pump for discharge at low velocities and with minimal water content. Tran...	05/17/1994
5267830	Pump for abrasive materials A pump for handling abrasive materials includes a housing having two chambers. A shaft mounts a high pressure impeller and a high volume impeller in respective chambers of the housing, each chamber having a separate and opposite inlet. A channel is provid...	12/07/1993
5201877	Suction transporting device A suction transporting device for transporting a material has a suction unit, a transporting line connected with the suction unit and having an inlet for receiving a material to be transported and an outlet for discharging the material to be transported a...	04/13/1993
5199767	Method of lifting deepsea mineral resources with heavy media Heavy media, which are heavier than the bulk density of nodules of raw deepsea mineral resources, are used to discharge the nodules on a marine ship through a lifting pipe from a sea floor U-tube connecting with a downstream pipe laid to the deepsea botto...	04/06/1993
5173182	Multi-purpose environmental work vessel A multi-purpose environmental work vessel, to be used in a variety of waterways, canals, and other coastal areas to perform a variety of necessary tasks including skimming oil or debris from the surface of the water, dredging for debris beneath the water'...	12/22/1992
5076919	Self-cleaning vacuum filter with relatively moveable surfaces for recovering oil from beaches A self-cleaning vacuum head is disclosed which has the ability to discriminate between particles of different size, or the ability to separate fluids from particulate matter. The invention has two relatively moving surfaces which provide a changing locus ...	12/31/1991
5021156	Dump truck for receiving draining and disposing of dredged material The truck has an hydraulic pump for receiving dredged mixture of solids and water from a pumping site and delivering the mixture to the truck body. A fixed partition wall is mounted transversely in the body and divides the body into first and second open ...	06/04/1991
4903419	Method of and apparatus for dredging sludge in high density A method of and apparatus for continuously dredging sludge deposited on an underwater bed, at a high density of the sludge, according to which digging and scooping devices are placed in an airtight hood opened at its bottom, which is applied on the intend...	02/27/1990
4854058	Dredging apparatus having a diver-operated hand-held dredge head for quasi-closed loop system Dredging apparatus including a diver-operator controlled and hand-held dredge head which permits the diver to move about freely in the water bed being dredged, and provides for continuously dredging the mixture of water and solids from a first body of wat...	08/08/1989
4797067	Pumping system with desilting arrangement Pumping system with a desilting arrangement having a bidirectional water pump disposed in a housing which has a pump inlet and a pump outlet. The system also has a silt blow-out pipe with a desilting valve therein, connected at one end to the pump outlet ...	01/10/1989
4779404	Suction harvester for aquatic plants and animals A suction harvester for aquatic plants and animals comprising a variable rate centrifugal pump capable of handling solids mounted on a vessel and connected to a manoeuvrable nozzle. The operator can control the placement of the nozzle and degree of suctio...	10/25/1988
4718835	Mining apparatus and jet pump therefor This disclosure relates to deep sea mining apparatus, comprising a relatively straight lift pipe, the lift pipe being adapted to extend substantially vertically from the floor of a body of water upwardly to a ship on the surface of the water. A plurality ...	01/12/1988
4614458	Permanent dredge system A permanently-installed system of intakes and conduits for removing accumulated sediment from the bottom of a watercourse includes a pattern of spaced slurry intakes of flared shape, connected by a conduit network to suction pumps. The intakes have sides ...	09/30/1986
4505214	Dredged soil conveying vessel In a dredged soil conveying vessel comprising a hold which is open on the bottom side and which is enclosed between two pivotally interconnected ship's halves, each of which has floating power and joining one another along their bottom rims in the closed ...	03/19/1985
4466760	Mobile material handler and a method for transferring bulk material The present invention relates to a mobile material handler useful for transferring dry, powdered, bulk material from a flat surface to a truck load-out bin, a silo, or another receptacle. More particularly, the invention relates to a mobile material handl...	08/21/1984
4444229	Slurry concentration apparatus An apparatus for increasing the solids to fluids ratio of a slurry is constructed from a chamber which has a substantially circular cross section with a high pressure slurry inlet mounted through said chamber wall with the axis of the inlet normal to a di...	04/24/1984
4391468	Method and apparatus for recovering mineral nodules from the ocean floor A method of recovering mineral nodules deposited on the ocean floor which comprises the steps of pumping a continuous flow of ocean water along a first confined path through an exchange position within the vicinity of the ocean floor where the mineral nod...	07/05/1983
4353174	Electronic control system for pneumatic-hydraulic pump dredge A control system is disclosed for a dredging device which includes a submersible pump having one or more chambers. Each chamber defines an air port through which air can be delivered to and exhausted from the chamber, a material discharge port for dischar...	10/12/1982
4336763	Marine vessel transfer system An automatic pneumatic pumping system of the type using two or more pumping tanks which are filled in alternate sequence with liquid from a common source and are alternately purged by air pressure so as to effect a continuous and uninterrupted flow of the...	06/29/1982
4307525	Pneumatic-hydraulic pump dredge An efficient dredging device is disclosed, which includes a submersible pump having one or more chambers. Each chamber defines an air port through which air can be delivered to and exhausted from the chamber, and a material discharge port for discharging ...	12/29/1981
4253255	Automated dredging with vacuum assist A pressure displacement dredging system capable of effective and efficient operation, without surging, over a wide depth range and under varying bottom conditions, comprises a submersible dredging head including at least three pressure vessels each having...	03/03/1981
4152800	Sludge suction unit for settling basins A continually operating automatic sludge suction unit for use in withdrawing sludge from the bottom of a primarily rectangular or square basin. The unit is controlled for zigzag movement on the surface of liquid in the basin by means of cables and cable g...	05/08/1979
4004357	Two stroke dredging plant A watercraft mounted pneumatically operated dredging plant comprising a dual shovel assembly in combination with a pumping unit, the shovel assembly including two shovels, each of which has a working edge facing in a direction opposite from that of the ot...	01/25/1977
3994082	Air operated dredging apparatus Air operated dredging apparatus comprising a submerged pumping unit adapted to be dragged along an underwater bed which unit includes at least two pumping chambers periodically filled with loose material in admixture with water entering the chamber throug...	11/30/1976
3958346	Multiple pumping chamber dredging apparatus An improved dredging apparatus comprising a plurality of pumping chambers, each pumping chamber having a separate inlet pipe branched off from a single intake duct, the intake duct in turn being either connected to the dredging shovel or directly adapted ...	05/25/1976
3950030	Underwater mining Methods and apparatus for underwater mining by inducing upwelling of water and entrained minerals or other materials through a conduit from an intake which may move within the body of water by unbalanced forces developed therein by such upwelling to a rec...	04/13/1976
3945394	Pressure-responsive valve Dual function valve for controlling flow of liquids or mixtures of liquids and solids has a movable seat for relief of excessive negative pressure and a buoyant gate for emergency discharge under excessive loads of solids....	03/23/1976

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Class 37/320 - With pumping chamber