Class 441/2 - With means to call buoy to surface

Subclass of Class 441 - Buoys, rafts, and aquatic devices
Definition: Buoy normally lying submerged under a body of water and including means
No. of patents: 43
Last issue date: 05/01/2012

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Number	Title	Issue Date
8167670	Blow-off float vehicle recovery apparatus The invention in one variation is a modular recovery apparatus for dispensing a tether spool having a tow line with a float, where the tow line can be used to retrieve an unmanned underwater vehicle and other underwater platforms. The modular recovery apparatus can ...	05/01/2012
7534152	Underwater float release system An underwater buoy release system having a moment arm release system. The moment arm release system has a magnetically attractive arm structure connected to a buoy. The buoy release system further includes an electromechanical device having magnetically attractive e...	05/19/2009
7310287	Method and apparatus for seismic data acquisition A marine seismic exploration method and system comprised of continuous recording, self-contained ocean bottom pods characterized by low profile casings. An external bumper is provided to promote ocean bottom coupling and prevent fishing net entrapment. Pods are teth...	12/18/2007
7146925	Apparatus for varying vessel hull geometry and vessels made therewith An apparatus for varying the dimensions of a hull of a vessel comprising an arcuate truss assembly having a plurality of members pivotally joined. The arcuate truss assembly is operatively arranged to form a portion of the hull. The assembly is operatively arranged ...	12/12/2006
7138603	Device for remotely decoupling coupled objects with a fusible link underwater A device for remotely decoupling coupled objects with a fusible link underwater using a replaceable fusible link of appropriate electrical resistance, a method to supply a high-power charge of electricity across the fusible link, a mechanism held by the fusible link...	11/21/2006
7036450	Method and device for operating an underwater vehicle A method is disclosed for operating an underwater vehicle. According to the method, the pressure difference between a container which can be filled with water and/or gas, especially air, in order to alter the weight of the vehicle and the water pressure outside the ...	05/02/2006
7025254	Non-visually identifiable fishing gear A non-visual identification apparatus includes aquatic gear. At least one water-resistant device is joined with the aquatic gear. The water-resistant device stores information. A reader is provided that is capable of non-visually reading the information stored by th...	04/11/2006
6966588	Releasing assembly A releasing assembly includes a lever provided with a first engaging element, a seat having a hole defined in a bottom of the seat and a cutout defined in a periphery of the seat to communicate with the hole, a releasing head having a column formed on the releasing ...	11/22/2005
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
6690300	Marine engine throttle control method for single or twin engine applications An improved marine engine control methodology is utilized in either single or twin engine applications, and provides a safe and logical transitioning between manual and automatic operating modes. A standard software instruction set is installed in a micro...	02/10/2004
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
6379202	Underwater clamp-type release apparatus An underwater clamp-type release apparatus has a main body and a release mechanism. The main body includes a housing, a motor stand, and a speed reducing gear motor while the release mechanism includes a base plate, a pair of clamp frames, a clamp, and a ...	04/30/2002
6261142	Submersible and retrievable buoy Buoy (3) incorporates a release mechanism (5) that permits buoy (3) to be submersed and subsequently automatically released to ascend to the surface. Mechanism (5) includes cap (16) which hermetically seals a space (8) within which release unit (101) is l...	07/17/2001
5516317	System to sink and float buoys Submarine (6) devices consisting of cavity to hold sand and an inflatable air bladder (10) are located beneath and connected to floating buoys (2). The weight of the sand when put inside the cavity is enough to sink buoy (2) until submarine (6) sits on th...	05/14/1996
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
5449307	Sea surveillance and control apparatus An apparatus and method for establishing and maintaining control over an area of the sea from a remote location, consisting of a remote control point, a number of submersible satellite stations and means for communicating by radio or conductive cable betw...	09/12/1995
5348501	Compact retrievable marker buoy A compact, retrievable and inexpensive marker buoy has a primary housing in the shape of an hourglass having a throat in the center, and a base. The primary housing has a waterproof chamber situated closer to one end than the other and a non-waterproof ch...	09/20/1994
5219245	Recovery system for a submerged instrument A recovery system for a submerged instrument that includes a buoyant member and an electrically promoted magnetic flux diversion device comprising a pair of pole pieces, a permanent magnet disposed substantially centrally between said pole pieces, and a r...	06/15/1993
5184328	Underwater release mechanism An underwater acoustic release system includes a buoyed member with an attached line that is released from a preselected underwater location using an acoustic signal that activates a heating element to melt a volume of wax or like meltable substance. The ...	02/02/1993
5129848	Controllable variable depth mooring system and method A mooring system and method of anchoring a buoyant module (16) in a submerged location in the sea for supporting an underwater structure such as a plurality of acoustical arrays (18) for receiving and transmitting acoustical signals is disclosed. The buoy...	07/14/1992
5100353	Electromagnetic marker float release The present invention provides a marker float release that includes a houg; an electromagnet mounted to the housing having an electromagnetic core; and a buoyant element having a permanent magnet. The buoyant element is positioned against the housing so ...	03/31/1992
5080684	Floating device for releasing safety equipment Floating device for releasing safety equipment, this device being fixed on a unit such as a ship and comprising a support on which a movable member is fixed under the influence of hydrostatic pressure, this member acting on a bolt by means of which the sa...	01/14/1992
5069575	Roll forming notches in a thin-wall power transmission member An apparatus and method for forming a power transmission member from a thin-walled blank, the apparatus including a pair of dies (84) having opposed work surfaces, and a mandrel (50) positioned between the work surfaces of the dies (84) for receiving a bl...	12/03/1991
5067429	Method for mooring and connecting an end of a flexible line with a conduit of a floating offshore edifice A method for mooring and connecting at least one flexible line end with a conduit of a floating sea edifice, with the method including the steps of mooring a harpoon to a float, which harpoon is attached to a first cable, pulling on the first cable to bri...	11/26/1991
5022013	Underwater release apparatus, underwater release system and method An improved underwater release apparatus, underwater release system and method of controlled release of an underwater object employing the underwater release apparatus. The underwater release apparatus comprises a housing release means mounted on a housin...	06/04/1991
5003514	Deep ocean recoverable acoustic sensor vehicle A deep ocean recoverable, tethered acoustic sensor system launchable from aircraft or ship. Upon water entry, the system separates into an upper flotation module containing a receiver/transmitter, antenna and inflatable bag, and a lower flotation module ...	03/26/1991
4839873	Subsea acoustic relocation system A subsea acoustic relocation system provides an apparatus that includes in one embodiment an anchor, and in another embodiment a weighted frame having in part a casing which has an inner bore with an open top portion. A line canister connected to the anch...	06/13/1989
4834684	Ball lock release mechanism An instrumentation package and float are releasably joined to an anchor by connector that holds the float and anchor together until the anchor impacts the ocean bottom. Upon impact, the inertia of the float and package cause a connector shaft to continue ...	05/30/1989
4777819	Untethered oceanographic sensor platform Method and apparatus for making depth related measurements from an untethered, gravity driven oceanographic platform. The platform is a smooth streamlined, torpedo shaped body releasably carrying ballast in its nose and covered with syntactic foam for buo...	10/18/1988
4731036	Indicator means A device for indicating the presence in water of an object consisting of material capable of being affected by a magnet, the device containing a magnet. The device enables a reliable and effective indication to be given of metallic objects which are prese...	03/15/1988
4722498	Inflatable air foil A non-rigid, gas inflatable airfoil having a bulbous inflatable forward body and three spaced-apart rearwardly extending inflatable tails. The tails are attached to the rearward portion of the body and form with the body a single inflatable chamber. The c...	02/02/1988
4666338	Ocean bottom seismometer release mechanism A method and apparatus for retrieving an ocean bottom seismometer deployed to a subsea location is disclosed wherein inflatable flexible housings are attached to cylindrical cannisters having detecting and recording equipment along with identical inflatio...	05/19/1987
4664559	Remotely operated magnetic release for anchored aquatic instrumentation A latch mechanism (release) for use in anchoring equipment and devices submerged in water, held closed by a permanent magnet and which can be automatically or remotely opened by diverting the magnetic field. The release is held closed by the magnetic attr...	05/12/1987
4557697	Method of delivering to ocean bottom and raising to surface of station for deep water researches and design of station delivered using said method A method of delivering to the ocean bottom and raising to the surface of a station provided with instrument packages for deep-water researches is realized by way of free submergence of the station in a water mass under the action of negative buoyancy of a...	12/10/1985
4547163	Oil transfer apparatus An apparatus and method for transferring a fluid, such as oil, between a fluid conveying line and a ship. The apparatus includes a transfer unit anchored at the bottom of the sea and attached to the fluid conveying line, and a coupling device which is bro...	10/15/1985
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
4535430	Subsea acoustic relocation system A subsea acoustic relocation system provides an apparatus that includes in one embodiment an anchor, and in another embodiment a weighted frame having in part a casing which has an inner bore with an open top portion. A line canister connected to the anch...	08/13/1985
4507093	Buoy device for automatic raising of submerged objects A device for automatically raising fish traps, crayfish pots, nets and the like comprises a tank containing pressurized gas connected through a control valve to an inflatable bladder. A control unit including a receiver and a solenoid driver is operable t...	03/26/1985
4430552	Thermal release device A thermal release device made up of a heating element in contact with a thermally fusible connective link which upon supplying electric current to the heating element melts through the link and parts the linkage....	02/07/1984
4262379	Automatically surfacing marker buoy for lobster or crab traps or the like A marker buoy attached to an object such as a lobster or crab trap by a latch and released by a trigger struck by a falling weight. A sealed buoy compartment contains a first permanent magnet holding the weight in upper position by a supportive pole relat...	04/21/1981

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Class 441/2 - With means to call buoy to surface