Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 7552551 | Suction head for sediment dredge Dredge heads, for use with a dredging system, include one or more movable members, e.g. grate members, adapted and configured to selectively extend across the opening of the dredge head. The movable member(s) enables a user to clear the dredge head of plugging masse... | 06/30/2009 |
| 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 |
| 7293377 | Wear pad for an extendable linkage A wear pad on a linkage of a work machine is disclosed. The linkage includes a first and a second linkage member in a telescoping relationship. The wear pad includes a first end having a first thickness and a second end having a second thickness, the first thickness... | 11/13/2007 |
| 7204546 | Vehicle cab slide pivot The present invention is a vehicle or machine cab slide and pivot apparatus for safely improving the view of the operator in the cab. The invention includes a slide rail assembly, a rotational assembly, and an operator compartment. The slide rail assembly is attache... | 04/17/2007 |
| 7204378 | Goods transshipment apparatus A goods transshipment apparatus having a mobile substructure with a superstructure mounted so as to be rotatable relative to said substructure and having a driver's cab and engine compartment and a jib or jib system jointed to the superstructure wherein the superstr... | 04/17/2007 |
| 7143532 | Marine backhoe dredge A marine backhoe dredge having a counterbalancing system that increases the hoisting capacity and hoisting speed of the backhoe. The device includes a backhoe mounted on a vessel and a counterbalancing system that includes an adjustable support structure, one or mor... | 12/05/2006 |
| 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 |
| 6860042 | Excavation system employing a jet pump An excavation system comprises a bucket, defining an outlet at its base, in fluid communication with a suction tube in fluid communication with a jet pump, configured to create a suction in the suction tube. A related method of excavating comprises loading excavatio... | 03/01/2005 |
| 6832572 | Underwater deposit-recovery scooper and specimen storage container A transparent/translucent flexible resilient plastic scooper container for operation by underwater remotely operated vehicle jaws, having a flat-bottomed lower portion hollow bowl and an upper inverted bowl lid rearwardly hinged thereto and resiliently insertable in... | 12/21/2004 |
| 6712979 | Enclosed excavator for low moisture contaminated sediment removal A system and method removes contaminated sediments during mechanical dredging operations, while maintaining a predetermined low moisture content of the contaminated sediments. The system uses a specially designed positive pressure controlled enclosure or enclosed ex... | 03/30/2004 |
| 6540925 | Oil recovery method and oil recovery apparatus An apparatus for recovering oil has a bucket for skimming and collecting water and oil floating on the surface of the water. The bucket has a base plate having apertures for draining water collected by the bucket. The apertures have a preselected diameter... | 04/01/2003 |
| 6432303 | Contaminated sediment excavator for subsurface sediment removal A system and method removes contaminated sediments during dredging operations to minimize the dispersion of particulate matter that normally occurs during conventional mechanical or hydraulic dredging operations. The system uses a specially designed press... | 08/13/2002 |
| 6343559 | Transportation system for dredged material and method of levy building A system for transporting material recovered in a dredging operation performed by a dredge is disclosed. The system includes a water-borne material distribution vessel including a conveyor system for receiving and depositing the recovered material. It als... | 02/05/2002 |
| 6038795 | Dredger with lockable rear door A dredge having substantially a box-like shape, with an open front face and an open rear face, the rear face having a door hinged thereto and a lock member to hold the door in a locked position. An A-shaped frame member is pivotally secured to the front e... | 03/21/2000 |
| 5915836 | Earth handling apparatus and method An earth handling apparatus and a method for cleaning livestock ponds. The inventive apparatus comprises: a body structure; a hitch positioned at the forward end of the body structure for coupling the apparatus with a tractor, maintainer, or other appropr... | 06/29/1999 |
| 5680717 | Excavation bucket An excavating bucket for rotating bucket excavators has a trough-shaped bucket having a forward edge formed by a U-shaped bucket lip. The lip has multiple shank holes and a cutting tooth in each shank hole which is removably attached to the lip. There are... | 10/28/1997 |
| 5638620 | Dredging vessel, dredging assembly and method of dredging The present invention discloses a dredging assembly which includes a vessel having at least one opening therein. A dredging pole of a predetermined length is positioned in and extends through the opening and is positioned substantially perpendicular to th... | 06/17/1997 |
| 5561922 | Extrusion dredging apparatus A marine dredging device comprised of scoop buckets pivotally connected to a reciprocating mechanism that extrudes soil into a receiver chamber and thence to upwardly extending soil transport tubes. Powered helices in the transport tubes serve to propel s... | 10/08/1996 |
| 5553404 | Power bucket A bucket for power shovels is disclosed having a first bucket half and a second bucket half. Each bucket half includes a pair of spaced side walls and an end wall extending between the side walls which together forms a scoop for each bucket half. The buck... | 09/10/1996 |
| 5435083 | Aquatic weed eradicator An apparatus and method for removing unwanted vegetation (46). A fork (12) is provided having a vibratory motor (38) attached thereto. The fork is inserted into the rooting medium (48) surrounding the root mass (50) of the vegetation. While the fork is in... | 07/25/1995 |
| 5413715 | Incinerator improvements An ash scoop which remains out of the water during most of its operation. The ash scoop has a retaining and a nonretaining configuration. It moves along a track downward into the pit while poised in its nonretaining configuration. Once in the pit, it move... | 05/09/1995 |
| 5379534 | Bucket equipped with mixing device, excavation machine having the bucket, and soil improvement method using the excavation machine A bucket equipped with a mixing device for use in work for improving the soil of grounds such as road grounds, an excavation machine having such a bucket, and a soil improvement method using such an excavation machine. The bucket is equipped with a mixing... | 01/10/1995 |
| 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 |
| 5259130 | Floating grab installation for the recovery of sand and gravel A floating grab installation for recovery of sand and gravel is disclosed. The installation includes a catamaran-type float or pontoon having a gripper and gripper support thereon. The gripper transfers the sand and gravel to an underwater tank having an ... | 11/09/1993 |
| 5250199 | Sludge scraper apparatus A sludge scraper apparatus for scraping a sludge sediment from an earthen bottom of a sludge reservoir, is described. The scraper apparatus is comprised of a main frame that provides for mounting a pair of skids, a scraper blade and a pair of wheels mount... | 10/05/1993 |
| 5199193 | Working machine A working machine for use in a working system in which a pair of working machines, which are capable of traveling both on land and on a riverbed or the like, are respectively used for excavating gravel or the like on the bottom of the water and for transp... | 04/06/1993 |
| 5042178 | Apparatus and process for solid dredge material disposal An apparatus and process for solid dredge material disposal is disclosed for changing the solid materials into a dense slurry for more advantageous dispersal at an aquatic disposal site. The apparatus includes a hopper discharging to a large high volume, ... | 08/27/1991 |
| 4831751 | Water craft for clearing navigational waters A water craft for clearing navigational waters comprises a floatable body (10) which is provided with propulsion in the form of a propeller (16) and steering in the form of a rudder (18). Two arms (28) are pivotally mounted in the central third portion of... | 05/23/1989 |
| 4803789 | Milling device Earth moving equipment for cutting into the earth employs a container having a forward opening. A holder is mounted in front of the container opening about in the middle thereof. A milling device is mounted on the holder for cutting into the earth. This m... | 02/14/1989 |
| 4696149 | Aquatic weed control method and apparatus Unwanted aquatic weeds are removed by first dragging the bottom of a lake with a horizontal bar to loosen the weeds from the bottom. The uprooted and broken weed stalks are permitted to float to the surface of the lake. The weeds are scooped from the wate... | 09/29/1987 |
| 4689903 | Earth digging machine for use on soft or undulating terrain, particularly for the clearing of ponds, swamps or canals A soft terrain earth digging machine, especially for the clearing and dredging of ponds, swamps or canals, of a type consisting of a bearing structure fitted with a central and lateral stabilizers and equipped with at least one earth digging device such a... | 09/01/1987 |
| 4676052 | Self-propelled dredge A self-propelled dredge includes a floating hull and a propulsion unit associated with the hull to propel the hull at the direction of an operator. Preferably, the propulsion unit includes a pair of paddlewheels disposed on opposite sides of the hull and ... | 06/30/1987 |
| 4631844 | Hydraulic shovel dredge system An underwater dredging system using a power-driven shovel. The shovel is manipulated to accumulate dredged solid material in the shovel bucket and the bucket is in communication with a pump suction conduit continuously removing the dredged material from t... | 12/30/1986 |
| 4616588 | Water craft and method for removing weeds and pollutants from navigable waters A navigable water craft having a first tool mounted on the bow area for removing pollutants. The tool may be a basket or scoop which is mounted to be raised and lowered such as through hydraulic rams. Additionally, the basket may be mounted to be rotated ... | 10/14/1986 |
| 4592155 | Dredger with transport basin having loading and unloading mechanism A dredger comprising a floating hull supported on floatable means, for instance on pontoons or the like, a transport basin movably supported at said hull for the reception of a mass lifted from the bottom and means for said movable support, said transport... | 06/03/1986 |
| 4446636 | Oceanic mining system An oceanic mining system. A sea bulldozer is movable across the bottom of the ocean by means of driven wheels to scrape up sediment from the ocean floor. The wheels are driven by an engine of the type which uses electrolysis to convert sea water into hydr... | 05/08/1984 |
| 4310975 | Dredging or excavating machine for marshes or canals A machine for cleaning out or dredging out ponds, marshes, or canals, comprises a central longitudinally extending fluid-tight cylindrical body having a low coefficient of friction with the ground and provided with withdrawable stabilizing feet. The base ... | 01/19/1982 |
| 4280288 | Modular draging unit for collecting solid bodies on an underwater bed A modular draging unit for collecting solid bodies such as polymetallic nodules on an underwater bed such as a sea floor comprises a plurality of collecting structures and a storage structure which are intended to be applied against the sea floor, means f... | 07/28/1981 |
| 4249324 | Steerable ocean floor dredge vehicle A steerable ocean floor dredge vehicle is provided which is of the towed variety, or partially self-propelled. The vehicle is towed from a surface ship via a rigid length of pipe or tubing, connected to the dredge vehicle via a pivoting joint permitting p... | 02/10/1981 |
| 4208813 | Steerable ocean floor dredge vehicle A steerable ocean floor dredge vehicle is provided which is of the towed variety, or partially self-propelled. The vehicle is towed from a surface ship via a rigid length of pipe or tubing, connnected to the dredge vehicle via a pivoting joint permitting ... | 06/24/1980 |
