Class 441/21 - Having means to control attitude or position

Subclass of Class 441 - Buoys, rafts, and aquatic devices
Definition: Buoy provided with means to control vertical, horizontal, or
No. of patents: 45
Last issue date: 05/15/2012

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Number	Title	Issue Date
8177595	Scoop point buoy A buoy that is adapted to resist entanglement with a trawler net that may be dragged over the anchor and buoy. The buoy may have an indentation on the body of the buoy that causes the buoy to pivot as a trawler net pulls the tether down and slides across the buoy. A...	05/15/2012
7841917	Floatation device A floatation device is disclosed that comprises a container 10 containing a liquefied gas, a gas chamber (60, FIG. 2) and a remotely operable device 29. The remotely operable device is switchable between a closed state in which fluid comm...	11/30/2010
7371136	Wave power A wave-powered water vehicle includes a surface float, a submerged swimmer, and a tether which connects the float and the swimmer, so that the swimmer moves up and down as a result of wave motion. The swimmer includes one or more fins which interact with the water a...	05/13/2008
7264420	Floating overturn prevention device A floating overturn prevention device includes a flat-top base and a pillar coupled to a bottom surface of the flat-top base and extending therefrom. The flat-top base is a floating body for floating desired equipment on the water. The pillar further includes a weig...	09/04/2007
7174844	Simulator and method for performing underwater submarine escape training The simulator of the present invention comprises a submersible structure to be used in a body of water, for instance a pool. This structure comprises a bell defining a main chamber. An escape tower is provided over the bell. This escape tower defines an escape chamb...	02/13/2007
6971934	Autonomous liquid filled buoy A buoy system includes a sea-bed pump station having separate reservoirs of lighter-than-water and heavier-than-water liquids. The reservoirs are in fluid communication with peristaltic pumps that are operated via a preprogrammed control within the station. A buoy h...	12/06/2005
6954175	Accurate positioning of devices suspended underwater from a floating body A system for determining the position of a device attached to a floating platform floating at the surface of a body of water. The system includes first and second navigation antennas mounted on the platform. A device is mounted to the platform in a position collinea...	10/11/2005
6836707	Methods and systems for determining heave and heave rate of vessels A method for determining heave and heave rate for a vessel is described. The vessel includes an inertial navigation system (INS), and sensors for the INS being located at a point A of the vessel, the vessel having a zero heave reference point B, and the described me...	12/28/2004
6739924	Remotely activated buoy A remote controlled buoy includes a buoyant reel and an actuator. The buoyant reel includes connectivity for connecting the buoyant reel to the actuator. The actuator includes a releasing mechanism for releasing the buoyant reel from the actuator. The buoy may inclu...	05/25/2004
6537118	Subsea buoy A subsea buoy for use in maneuvering a submerged object, the buoy comprising a buoyant body, a first frangible link for securing said buoy to the object, means for rupturing said first frangible link, a drogue secured to said buoyant body by a second fran...	03/25/2003
6463800	Energy conserving moored buoyant ocean profiler An energy conserving moored buoyant ocean profiler wherein an instrument carrying vertically traversing buoyant member of low buoyancy is interconnected with a second buoyant member of high buoyancy to travel in the opposite direction at lesser distance, ...	10/15/2002
6422746	Method and device for a self orienting floating apparatus The present invention relates to a method and device for a self orienting floating apparatus which utilizes an external magnetic field to maintain a constant orientation, and specifically relates to a plain form hydrometer, a floating thermometer, and a t...	07/23/2002
6309269	Variable buoyancy buoy for mooring mobile offshore drilling units In a system for mooring offshore drilling units, a first mooring assembles installed at a first drilling venue, after which the mobile offshore drilling unit is moored by connection to the mooring lines. A second mooring assembly is installed at a second ...	10/30/2001
6183326	Communication buoy with ice penetrating capabilities A deployable buoy having a nose cone and a tail section interconnected by a housing. The buoy comprises an outer shell and a canister with the outer shell axially moveable relative to the canister. An expansion chamber is provided between the outer shell ...	02/06/2001
6102758	Near shore spar communication platform The Near Shore Spar Buoy Communication Platform is a semi-stable platform for data collection and retrieval for distances up to and over several miles offshore. It is an ocean-going computer housed in a modified spar buoy which is connected to a shore com...	08/15/2000
5735719	Combination inflatable dive flag and float A combination inflatable dive flag and float that visually marks a position in a waterway where a diver is diving. The combination includes an inflatable, hollow, elongated, slender, vertically-oriented, and generally cylindrically-shaped mast tube, and a...	04/07/1998
5624210	Collision tolerant pile structure A support pile assembly for an aid to navigation that is to be placed in an area where it will be subject to repeated hits by boats and barges. In one configuration the assembly comprises a foundation which is driven into the mud on the bottom and which r...	04/29/1997
5577942	Station keeping buoy system The present invention relates to a buoy system capable of maintaining a b in a fixed position on the ocean or another body of water without the use of an anchoring device. The buoy system includes a navigation control system for determining the position ...	11/26/1996
5460556	Variable buoyancy buoy A variable buoyancy buoy includes a shell and expansion apparatus. The two are combined in a manner to provide a watertight structure with an internal region wherein a constant pressure is maintained that is substantially equal to the pressure at a predet...	10/24/1995
5308270	Ice penetrating buoy A submarine-launched, ice-penetrating sonobuoy is disclosed. The buoy is pedo-shaped with a collapsible obturator tail-fin section removably attached at the tail-end, standard electronics in a mid-section and an explosive nose cone at the front. Immediat...	05/03/1994
5291847	Autonomous propulsion within a volume of fluid Energy is collected from temperature differentials in a volume of fluid and the energy is used for autonomous propulsion in the fluid....	03/08/1994
5256093	Marking buoy with shock cord A lightweight plastic buoy with an elastic shock cord (31) attached to the nylon line (30) and lead weight (32). Included in the buoy is a plastic spool (21) attached to a metal shaft and crank (20) in a housing (11). A plastic pin (23) is attached to a f...	10/26/1993
5224074	Sonobuoy for forming virtual vertical sensing arrays A sonobuoy for forming a plurality of virtual vertical arrays, the sonobuoy aving means for receiving and expelling water to cause said sonobuoy automatically to descend and rise in a water environment, whereby to form sequentially a plurality of virtual v...	06/29/1993
5073136	Collapsible sonobuoy floatation device A surface unit for a sonobuoy or similar device is disclosed and includes a variable volume sealed chamber and an arrangement including a pressurized carbon dioxide cartridge within the sealed chamber which, when energized, releases the carbon dioxide and...	12/17/1991
4943051	Human energy transmission device A propulsion and exercise device transmitting human energy from both the upper and lower body simultaneously. A frame (20) contains a rotatable upwardly extending mast (30) to which a foot engaging structure (38) is attached by linkage (48). A collapsible...	07/24/1990
4850915	Apparatus for deploying and supporting a large aperture volumetric array in a medium An apparatus for supporting a large volumetric array of acoustic sensors in water is packaged in a standard configuration sonobuoy envelope and utilizes conventional sonobuoy deployment components. A housing within the envelope contains a plurality of tub...	07/25/1989
4808133	Marker buoy with self retracting line An anchor locating buoy system is provided with a self-retracting anchor line. The buoy system automatically collects and stores any excess portion of line between a marker float and an anchor thereby minimizing the distance between the marker float and t...	02/28/1989
4780863	Removable power supply for an ocean bottom seismometer An apparatus for supplying the power requirements of an Ocean Bottom Seismometer is disclosed wherein the power supply is separate from the power consuming devices of an Ocean Bottom Seismometer and mounted on the weight holding the Ocean Bottom Seismomet...	10/25/1988
4768984	Buoy having minimal motion characteristics The present invention provides a service buoy for performing direct wireline maintenance of a subsea well. The buoy is maintained in position over the well by a rigid riser kept under tension and which allows for the well re-entry. The primary buoyant bod...	09/06/1988
4694435	Vertical marine streamer A device for receiving acoustic waves in water and adapted to be positioned vertically in the water in a stable position. The device comprises a tubular element formed of several connected sections, buoyancy means close to a first end, ballasting means cl...	09/15/1987
4680148	Mobile pond aerating system A system for aerating in a programmed manner the desired areas of a water pond to enhance the environment for marine life in the pond; said system including a propelled boat with an aerator mounted thereon and having direction control apparatus including ...	07/14/1987
4677931	Variable buoyancy apparatus Buoyancy apparatus for carrying a payload to and maintaining the payload at substantially a constant depth or within a desired range of depth, which comprises a variable buoyancy vessel, a depth sensor, deflectable members for detecting upwards and downwa...	07/07/1987
4650431	Quick disconnect storage production terminal An offshore terminal is described, of the type which includes a dedicated vessel that supports a transfer structure loosely anchored as by several chains, and a fluid conduit structure that extends from the sea floor through the transfer structure to the ...	03/17/1987
4580987	Mooring line lockup mechanism An Air Deployed Oceanographic Mooring when assembled for deployment has a ltitude of components suitable for separation by explosive bolts upon deployment of the system. A parachute system is connected to a surface buoy. The components that separate from ...	04/08/1986
4546721	Submerged single point mooring system A mooring system for anchoring sea going ships, such as storage or production tanker vessels, and more particularly, a submerged single point mooring system fixed to the seabed and which is particularly adapted for use in arctic waters having surface haza...	10/15/1985
4498877	Anchoring system for a buoy, specially a measuring buoy An anchoring system for buoys and specially measuring buoys in which an anchoring line is connected to an anchoring line connection member which is connected by at least two connection links to the buoy. The connection links have equal length and the conn...	02/12/1985
4487151	Floating highway The present invention is a floating highway unit which has a structure which facilitates both removal from linkage in a series of units forming the highway, provides for simple alignment of the units during assembly, and also allows vertical movement caus...	12/11/1984
4436049	Simulator for testing sonobuoys Apparatus is provided for simulating an ocean environment for sonobuoys wh are being tested in a relatively calm body of water. A floating platform is towed through water to simulate a sea current, and a sonobuoy being tested is attached by a cable to th...	03/13/1984
4321720	Method of transferring a fluid from a station on the sea bed to a vessel, or vice-versa, and a means and a vessel for carrying out the method In order to transfer a fluid from a station on the sea bed for a vessel or vice versa, a discharging/loading buoy comprising coupling apparatus for fluid flow is placed in a submerged state and fixed in this state with anchoring apparatus. A vessel is bro...	03/30/1982
4280238	Single-point mooring buoy A single-point mooring buoy comprises a column which is hingedly connected to an anchor and upstands from the anchor and has a frequency less than six seconds. At the upper end of the column is pivotally connected to a fully submerged buoyant body which h...	07/28/1981

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Class 441/21 - Having means to control attitude or position