Bizarre Patents
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 |
| 7739812 | Cutter head and suction dredger A cutter head for a cutter suction dredger to be mounted rotatably about a cutter head center axis with respect to a suction device for sucking up material cut loose by the cutter head from the bottom of a body of water, which cutter head includes a base ring, a bos... | 06/22/2010 |
| 7181871 | Sludge harvester for removing sludge from sludge ponds A sludge harvester for removing a concentrated nutrient sludge from a sludge pond includes a frame, one or more wheels or skids attached to the frame, means for gently breaking up at least a portion of the sludge layer adjacent to a dilute layer, and means for captu... | 02/27/2007 |
| 6467200 | Shoe mechanism for an excavating wheel and associated method A shoe mechanism adapted for use on a dredging apparatus (10) to remove silt from under the surface of a body of water and associated method, the dredging apparatus being operative in both a forward and reverse direction of travel and including an excavat... | 10/22/2002 |
| 6357150 | Spade wheel apparatus for dredging equipment and associated method A rotating drive wheel assembly for steering and maneuvering a dredging apparatus includes a carrier wheel and an orientation wheel connected to opposite ends of a pivotation member. A plurality of spade devices are connected to the wheels, each including... | 03/19/2002 |
| 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 |
| 6289613 | Ejector mechanism for an excavating wheel used in a dredging operation and associated method An ejector mechanism (20) adapted for use on a dredging apparatus (10) to remove silt from under the surface of a body of water and associated method, the dredging apparatus being operative in a forward and reverse direction and including first (32) and s... | 09/18/2001 |
| 6022173 | Underwater trenching system A self-guided system for trenching water bottoms for the installation of a pipeline. The preferred embodiment of the present invention teaches a system which is configured to be mounted about the pipeline to be buried, and which further contemplates a uni... | 02/08/2000 |
| 5960570 | Apparatus and method for removing silt from under a body of water A silt removal apparatus is provided for removing silt from under a body of water. The silt removing apparatus includes a silt removing wheel rotatably mounted on a floatation arrangement. The silt removing wheel has a plurality of silt retaining chambers... | 10/05/1999 |
| 5907915 | Ejector mechanism for a silt removal excavating wheel An ejector mechanism operates to force silt material from individual chambers in a rotating wheel of a silt removal machine. The rotating wheel removes the silt material from under a shallow body of water by collecting it in individual chambers of the rot... | 06/01/1999 |
| 5639185 | Underwater trenching system A self-guided system for trenching water bottoms for the installation of a pipeline. The preferred embodiment of the present invention teaches a system which is configured to be mounted about the pipeline to be buried, and which further contemplates a uni... | 06/17/1997 |
| 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 |
| 5456551 | Underwater trenching system A self-guided system for trenching water bottoms for the installation of a pipeline. The preferred embodiment of the present invention teaches a system which is configured to be mounted about the pipeline to be buried, and which further contemplates a uni... | 10/10/1995 |
| 5282694 | Method of reclaiming abandoned settling ponds Settling ponds used in strip mining are reclaimed using lightweight amphibious vehicles which are capable of traversing land, water or clay surfaces and wherein the method consists of pumping clay settled in subsurface areas and spreading the clay remotel... | 02/01/1994 |
| 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 |
| 4872977 | Solid waste retriever A solid waste retrieval device utilizes a rotating drum carrying a plurality of teeth to lift dried sludge from an underlying sand bed such that substantially no sand is removed with the sludge. The device moves over the sludge and compresses it beneath a... | 10/10/1989 |
| 4780972 | Wheelmotor drive for rotary cutterhead A wheelmotor direct-drives the bucketwheel for wet underwater service in dredging. This eliminates the combination of an intervening gear box and a watertight chamber to house the rotating shaft hydraulic motor of conventional dry underwater service pract... | 11/01/1988 |
| 4445608 | Bucket wheels and bucket wheel reclaimers A bucket wheel for a bucket wheel unloader has a series of buckets mounted on pivots around its periphery so that the buckets can be displaced between opposite end positions to correspond with either direction of rotation of the wheel. Latching means enga... | 05/01/1984 |
| 4398362 | Oceanic seaplow system An oceanic seaplow system comprising a plurality of vessels forming a mini fleet wherein a flexible hose is joined at one end to a suction turbine associated with a mothership and the other end is connected to a suction stud on a seaplow travelling on the... | 08/16/1983 |
| 4314414 | Trench digging apparatus and bearing therefor A trench digging apparatus comprising a cutter wheel with picks projecting from the outer periphery thereof. An electric drive motor is provided to rotate the cutter wheel about a substantially horizontal axis. The cutter wheel is supported by a support f... | 02/09/1982 |
| 4302893 | Digging wheel for a suction dredger vessel A digging wheel for a suction dredger vessel which digging wheel rotates about a horizontal axis and has at its circumference a plurality of closely spaced partly overlapping scoops while the suction mouth in the interior of the wheel has an extension whi... | 12/01/1981 |
| 4257178 | Height adjustable drum type dredging apparatus A cylindrical drum is mounted for rotation about its axis on laterally opposed horizontal crossbeams of an open rectangular frame which crossbeams, in turn, bear on at least one end thereof, lift beams, slidable within vertical guide rails for varying the... | 03/24/1981 |
| 4242814 | Cutter wheel for a dredging apparatus A cutter wheel for a dredging apparatus mounted for rotation about a shaft and having outwardly projecting cutting blades mounted on openings formed in the cylindrical peripheral plane of said wheel, while a stationary suction mouth is provided inside sai... | 01/06/1981 |
