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A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 8091255 | Seabed organic material relocating An apparatus to gather and relocate benthic life and life supporting material for use in combination with a seabed or aquatic bed dredger, plough, mole or other seabed disturbing apparatus comprising a means of gathering the benthic life and life supporting material... | 01/10/2012 |
| 7509759 | System and method of dewatering dredge spoils using sloping drain barge An apparatus for dewatering dredge spoils includes a floating barge having a planar upper surface or deck. One end of the barge, such as the stern, is partially flooded or otherwise ballasted so that the deck slopes downwardly from the bow toward the stem. Dredge sp... | 03/31/2009 |
| 7472501 | Method and system for building up land in a water-covered or water-surrounded area and land body formed by use of same An article of manufacture produced by a process comprising the steps of: erecting a sediment-containment structure comprising a plurality of floating boom segments; and introducing sediment into the shape formed by the sediment-containment structure. A system for bu... | 01/06/2009 |
| 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 |
| 7121506 | Remotely controlled model airplane having deflectable centrally biased control surface A remotely controlled model airplane includes a receiver responsive to signals from a transmitter to control the direction of flight of the model airplane. The receiver, powered by a battery, demodulates the signal transmitted by the transmitter to selectively energ... | 10/17/2006 |
| 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 |
| 7011749 | Remediation with ozone of sediments containing organic contaminants A system for treating sediments contaminated with organic contaminants, such as polychlorinated biphenyls (PCBs) and other contaminants polyaromatic hydrocarbons (PAHs) and dichlorodiphenyltrichloroethane (DDT) includes treating the sediments with ozone to react the... | 03/14/2006 |
| 7000372 | Method and system to control weeds A weed control system for a body of water which includes a weed contacting member suspendable within the body of water proximate a bed of weeds and a drive member for automatically moving the weed contacting member repeatedly over the bed of weeds such that the weed... | 02/21/2006 |
| 6922922 | Amphibious dredging vehicle and method for restoring wetlands using same An amphibious dredging vehicle includes a base including a pair of floatable pontoons linked together in essentially parallel relation; a cutterhead dredge system that is mounted on the base and that includes a cutterhead mounted on the front end portion of the base... | 08/02/2005 |
| 6874261 | Method for treating an underwater bed A method of forming a trench in the bed of a body of water, the bed having an initial undisturbed upper surface, comprises suspending a pressure line from a vessel floating on the body of water, the pressure line terminating downwardly in a downwardly directed nozzl... | 04/05/2005 |
| 6821054 | Method and system for laying pipe through the use of a plow A method and system for laying and burying pipe a seabed using a pipe trenching plow that is advanced along the seabed to form a continuous trench. The pipe trenching plow cuts a pilot hole in the seabed using a cutting apparatus and widens and forms a trench from t... | 11/23/2004 |
| 6755701 | Amphibious vehicle with submersible capacity An amphibious vehicle with submersible capacity includes a first portion and a second portion, coupled by an extension, and a valve assembly. The first portion is capable of floating on water while the second portion is contemporaneously submerged beneath the surfac... | 06/29/2004 |
| 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 |
| 6374519 | Dredging apparatus A dredger for removing sand, silt and like material from a river or seabed has application to clearing wrecks and providing trenches in which, for example, pipeline may be laid. The dredger includes a body having first thrusters to direct, in use, a wash ... | 04/23/2002 |
| 6357149 | Method and apparatus for determining the depth of acceptable sediment removal from a body of water The depth of sediment material under a body of water having a minimum desirable consistency or strength for a dredging operation is determined by an arm assembly having one end portion pivotally connected to a substantially horizontal platform, and a plat... | 03/19/2002 |
| 6263594 | Dredging system The present invention is useful for dredging underneath a floating vessel, where a conventional dredge cannot reach the location of the material to be dredged. A neutral buoyancy pipe is attached to the end of the suction pipe and acts as an extension of ... | 07/24/2001 |
| 6152656 | Material delivery system A material delivery system conveys material from a supply location at or above an area surface to a working location below the area surface. The delivery system includes a supply hopper located at the supply location and having an inlet for receiving mate... | 11/28/2000 |
| 6125560 | Dredging apparatus A dredging apparatus comprising a body mounting thruster to direct, in use, a wash of water downwards towards an area of sea bed or the like, connection device to connect the dredging apparatus to a support vessel above the sea bed, said connection device... | 10/03/2000 |
| 6041527 | Bidirectional dredge apparatus A bidirectional dredge provides active dredging on both forward and reverse passes across an area being dredged. The dredge includes a pivot turning mechanism that allows a turnaround of the dredge, allowing each pass to start at the terminating point of ... | 03/28/2000 |
| 6010624 | Contaminated sediment treatment process A system and method for the treatment of contaminated sediment found in rivers, lakes and certain bodies of water, wherein the contaminated sediment is removed from the body of water as part of a liquified mixture including both water and the contaminated... | 01/04/2000 |
| 5979088 | Dredging installation An installation for sucking up material from the bed of a body of water includes a housing (1) that is provided with a suction pipe (2) which extends toward the bed of the body of water and that has a suction opening (22) and is connected to a pump (4) lo... | 11/09/1999 |
| 5938936 | Method for dewatering flocculated materials The present invention is directed to a continuous, portable dredging system that employs a series of screens and gravity separation devices with flocculation to remove sediments from the dredged slurry. The system produces a treated water stream having lo... | 08/17/1999 |
| 5913604 | Dredging installation An installation for sucking up material from the bed of a body of water includes a housing (1) that is provided with a suction pipe (2) which extends toward the bed of the body of water and that has a suction opening (22) and is connected to a pump (4) lo... | 06/22/1999 |
| 5804069 | Apparatus for extracting water from marine sediments A mesh enclosed container is provided to remove melt water from frozen blocks of contaminated sediment which has been extracted from a marine environment. The mesh enclosure has a number of porous wicking tubes for insertion into corresponding cavities in... | 09/08/1998 |
| 5660055 | Apparatus for extraction of marine sediments via freezing A freezing cell having one or more freezing tines may be used to remove contaminated sediment from the beds of water bodies. The freezing tines are to be immersed into the sediment. Refrigerant is supplied to the tines by a refrigeration unit during the f... | 08/26/1997 |
| 5656174 | Dredging system and method The present invention is directed to a continuous, portable dredging system that employs a series of screens and gravity separation devices with flocculation to remove sediments from the dredged slurry. The system produces a treated water stream having lo... | 08/12/1997 |
| 5636457 | Method of dredging via freezing and removing sediment A freezing cell having one or more freezing tines may be used to remove contaminated sediment from the beds of water bodies. The freezing tines are to be immersed into the sediment. Refrigerant is supplied to the tines by a refrigeration unit during the f... | 06/10/1997 |
| 5595134 | Towing system for dredges and method for using same A towing arm assembly for use with a towing vessel has a towing arm support affixed to each side of the towing vessel. Each towing arm support receives in sliding engagement in a horizontal channel therein a pin connected to a proximal end of a towing arm... | 01/21/1997 |
| 5571225 | Drive arrangement and method for installing such arrangement in a machine The new drive arrangement involves a machine having upper and lower decks with respective upper and lower openings through them. The drive arrangement includes a flanged bearing housing attached to the lower deck. The upper opening and the bearing housing... | 11/05/1996 |
| 5558779 | Method and apparatus for extracting water from marine sediments A mesh enclosed container is provided to remove melt water from frozen blocks of contaminated sediment which has been extracted from a marine environment. The mesh enclosure has a number of porous wicking tubes for insertion into corresponding cavities in... | 09/24/1996 |
| 5421109 | Underwater site clearance sweep apparatus and method A method of removing objects from the bottom of a body of water around a well head includes a vessel spooling out a link-chain or a cable-net from a winch located on the vessel, with the opposite end of the link-chain or cable-net attached to a swivel ass... | 06/06/1995 |
| 5285587 | Underwater mining dredge Dredging apparatus (10) is provided with a flow conduit (18), a first pump (28), a second pump (30), and two valves (34, 44). The flow conduit (18) comprises a first leg (20) extending downwardly to a lower portion (22) and a second leg (24) extending upw... | 02/15/1994 |
| 5286384 | Sludge scraper apparatus A sludge scraper (10) for scraping sludge (107) from the bottom of a reservoir (100) is disclosed herein. The scraper includes a main frame (11) that provides for the mounting of a pair of skids (15), a scraper blade (17), and a pair of wheels (25). A fir... | 02/15/1994 |
| 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 |
| 5199194 | Sea bottom sampler The invention relates to an apparatus, suitable for deployment from small vessels, for obtaining samples of materials from the sea bottom and, more specifically, to a multi-bucket sampler particularly suited for, but not restricted to, gathering samples f... | 04/06/1993 |
| 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 |
| 5110311 | Air boat slime plow and methods of use An air-boat (2) is provided with a hollow suspension member (4) through which a plow attachment member (3) is insertable to contain plowshare members (10 and 17) at a front section of the air-boat (2). There can be a plurality of hollow suspension members... | 05/05/1992 |
| 4758116 | Multi-blade ditching machine A ditching machine for digging a ditch or a trench for submarine cables having at least several pairs of blades disposed along the longitudinal direction of the center body of the machine. At least the blades in the forward position have a ditching portio... | 07/19/1988 |
| 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 |
| 4343099 | Apparatus for the parallel guidance of the bucket of a hydraulic excavator In a hydraulic dredger/excavator wherein it is desired to guide the bucket parallel to itself there is provided a control apparatus for positively controlling the necessary changes of angle between the dipper boom (4) and the bucket (5) in dependence on t... | 08/10/1982 |
