Class 37/334 - With pipe suspension or support (e.g., ladder structure)

Subclass of Class 37 - Excavating
Definition: Apparatus including means formed of structural steel or
No. of patents: 33
Last issue date: 03/06/2012

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Number	Title	Issue Date
8127474	Dredging apparatus In embodiments of the invention, a dredging head assembly uses vacuum only, or a combination of vacuum and flexible PVC tines, rather than the harsh digging and/or scraping features of conventional dredging equipment. Embodiments of the invention also provide a dred...	03/06/2012
7793441	Device and method for changing a suction mouth A device is disclosed for changing a suction mouth of a cutter suction dredge of a vessel with cutter ladder. In at least one embodiment, the device includes, comprising a work platform which, as seen in the transverse direction of the vessel, is provided substantia...	09/14/2010
7211923	Rotational motion based, electrostatic power source and methods thereof A power system includes a member with two or more sections and at least one pair of electrodes. Each of the two or more sections has a stored static charge. Each of the pair of electrodes is spaced from and on substantially opposing sides of the member from the othe...	05/01/2007
7047676	Rotational and positionable arm-controlled underwater bottom artifact and sample suction recovery apparatus and interchangeable bottom coring apparatus A novel rotational and positionable robotic arm-controlled underwater bottom artifact and sample suction recovery apparatus and interchangeable bottom coring apparatus, wherein the interchange is effected underwater by rotation of a common deploying arm and remote-c...	05/23/2006
5732487	Dredge head for dredging sludge by a trailing or pushing motion A dredge head for dredging sludge by a trailing and pushing motion thereby defining a trailing and pushing direction is configured to be fitted on a ladder of a stationary dredger. The ladder is movable in the trailing and pushing direction for moving the...	03/31/1998
5203099	Self-powered, submersible dredge apparatus A self-powered, self-contained mobile dredge for removing silt and other bottom sediment from the bottom surface of a body of water, such as a canal, which accumulates as a result of erosion caused by rain and irrigation. A submersible drive unit of the d...	04/20/1993
4995168	Technique for locating submerged and buried pipelines Apparatus for locating submerged buried pipelines includes a barge having a template providing a multiplicity of probes lowerable into the sea floor to contact the pipeline. A trench is excavated perpendicular to the pipeline by injecting air and/or water...	02/26/1991
4750279	Mobile apparatus for carrying out work both above and below water Mobile dredging apparatus movable on caterpillar tracks (2) or the like and provided with an energy unit (8,10), energy consuming motors (11) for moving and dredging and extendable line connections (9) between unit (8,10) and motors (11). The unit is remo...	06/14/1988
4680879	Underwater dredging apparatus and cutter head therefor A boom pivotally mounted for rotation about a vertical axis on a support vehicle which may be a floating barge or heavy truck. The boom is extensible and retractable in the radial direction and mounts, at a distal end, a cable supporting a dredging appara...	07/21/1987
4624066	Dredge with twin cutter head and suspension therefor A dredge provided with a twin cutter in a container unit which is suspended from the ladder yoke in a hanger and tip tackle. Stay tackle structure is provided extending between port and starboard of the dredge vessel in a cross-wise manner to the opposite...	11/25/1986
4585274	Mineral and metal particle recovery apparatus and method Apparatus for recovering metallic particles from a recovery hole formed in a sub-surface formation containing said particles, comprises (a) a barge, (b) a rotating cutter head supported by the barge for controlled bodily movement at the recovery hole and for c...	04/29/1986
4411079	Suction drag system The invention relates to a suction drag system for dredging vessels which can be placed or removed respectively on an existing vessel, such as a hopper barge (1,2), the system comprising a suction pipe (26,28) with suction head, a suction pump (29) with d...	10/25/1983
4408404	Pivotable articulated support shoe for hydraulic nozzle This invention provides means for supporting a hydraulic nozzle (of the type utilized, for example, to obtain valuable mineral ores from ocean depths) with a support surface in a manner so that the attitude of the support surface relative to the ocean flo...	10/11/1983
4361973	Bulk material conveying for a pneumatic dredger A pneumatic dredger bulk conveyor of the type wherein a conveyor line is formed by a first circular outer tube and a first inner tube telescopically slidable therein and a pressure line is formed by a second outer tube fixed to the first outer tube and a ...	12/07/1982
4352250	Suction dredger installation A suction dredger installation provided with a vessel, at least one pump, at least one suction pipe hingedly connected to the vessel, said suction pipe comprising three pipe sections hingedly interconnected, the first of which is supported by a ladder, an...	10/05/1982
4351122	System for controlling the position of the drag pipe of a dredge Dredge with drag pipe, consisting of a number of pipe sections interconnected by hinged joints, whereby drag lines are connected to said hinged joints and to the front and rear end of the drag pipe and furthermore the rotatably supported front end of the ...	09/28/1982
4326346	Crane for a towing suction device for a dredging craft Crane for a towing suction device of a dredging craft, which crane is provided with a carrying arm with which a movable tube part of the towing suction device can be displaced between an inboard non-operative or rest position and an outboard dredging posi...	04/27/1982
4320590	Dredging device The spoil line of a dredger is kept afloat by a series of spaced floatation elements in the form of tire carcasses, the beaded mouths of which have been spread until the distance between the edges of the mouths is greater than the radial distance from the...	03/23/1982
4305214	In-line centrifugal pump A ladder pump for use with a hydraulic dredge to increase the main pump efficiency comprises a casing and a vaned impeller located in the casing and mounted for rotation about a normally horizontal axis transverse to the ladder. The casing has an inlet an...	12/15/1981
4295286	Support frame for motor, pump and suction tube of a suction dredger A suction dredger and in particular a dredging tube having between a suction head and its connection to the hull of the vessel a motor pump unit which unit according to the invention is placed upon a frame which by pivotable joints interconnects the lower...	10/20/1981
4291474	Dredge swell compensator apparatus An apparatus for maintaining a uniform grade of the surface being excavated or leveled by a waterborne dredge. The apparatus includes a shore mounted laser that projects a horizontal beam which is utilized to establish a reference plane, a dredge mounted ...	09/29/1981
4267652	Dredging system and apparatus A dredging assembly pivotally suspended by a boom from a floating vessel includes an underwater frame that is propelled by rotation of spaded wheels to exert a forward propelling force on excavating drums mounted at a forward end of the frame. The drums a...	05/19/1981
4261117	Dredging vessel A dredging vessel, specifically intended for the dredging of rivers or similar water courses, equipped with propulsion means allowing the vessel to move independently through the water; an adjustable suction line, with suction head, connected to the sucti...	04/14/1981
4242815	Suction pipe position control Method and apparatus for controlling the position of the last section of a suction pipe with a drag head, wherein the suction pipe comprises at least two pivotally connected sections and wherein there are provided at least two independently operable hoist...	01/06/1981
4242816	Dredger having a two-part boom The invention described consists of a dredger having a floating hull and a two-part boom attached to the hull and extending forwardly therefrom. The rear end of the first part of the boom is hinged to the hull about a horizontal axis, while its front end ...	01/06/1981
4212121	Method and apparatus for dredging having bow-stern movement of the suction means An improved method for dredging by means of a pair of spuds provided on the respective sides of the stern of a dredger and adapted to be alternately driven into the bottom of the water, a ladder projected from the bow portion of the dredger and a suction ...	07/15/1980
4211020	Vertically adjustable mast assembly for a dredge In a vessel-mounted dredging device in which material freed by revolving cutters is pumped through a suction mouth and discharge pipe to a place remote from the cutters, a submersible dredge pump is mounted on a platform which supports cutter discs spaced...	07/08/1980
4170079	Dredge with rotatable cutter discs In a vessel-mounted dredging device in which material freed by revolving cutters is pumped through a suction mouth and discharge pipe to a place remote from the cutters, a submersible dredge pump is mounted on a platform which supports cutter discs spaced...	10/09/1979
4146982	Improved pump-type sludge dredging apparatus An improved pump-type sludge dredging apparatus including a pump dredger having a first ladder, a sludge suction pump acting in cooperation with the ladder and pump dredger, a suction pipe, a second ladder, a suction device suspended from the second ladde...	04/03/1979
4133120	Dredging apparatus with spring-supported bucket ladder Dredging apparatus has a bucket ladder pivotally mounted thereon for vertical swinging movement about a horizontal axis. To stabilize the bucket ladder, the free end of the ladder is supported by a pulley and cable assembly which at its upper end is suppo...	01/09/1979
4102064	Swell compensator for suction dredging system A suction dredging system comprises a vessel having an arm pivotally secured to it which can be positioned and held in an obliquely downwardly directed position and which itself comprises upper and lower parts which are pivotally interconnected with a lin...	07/25/1978
4026049	Articulating dredge An articulating dredge comprising a barge with a spud arrangement to maneuver the barge and an articulated hull section pivotally secured to the bow of the barge by a trunnion such that the hull section pivots between the port and starboard sides of the b...	05/31/1977
3959898	Dredge ladder shock mounting arrangement Shock mounting arrangements for mounting one end of a rigid dredge ladder and for mounting the holding spud on a dredging barge or dredging platform. In the ladder mounting, pivot pins are connected to one end of the ladder for permitting pivotal movement...	06/01/1976

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Class 37/334 - With pipe suspension or support (e.g., ladder structure)