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| Number | Title | Issue Date |
| 7258836 | Freeze resistant buoy system A freeze resistant buoy system includes a tail-tube buoy having a thermally insulated section disposed predominantly above a waterline, and a thermo-siphon disposed predominantly below the waterline. ... | 08/21/2007 |
| 7032530 | Submarine air bag launch assembly An air bag launch assembly is disclosed which allows for modular loading onto a submarine, the launch of weapons or vehicles external to the submarine pressure hull, while also achieving greater packing density. The air bag launch assembly includes a large, watertig... | 04/25/2006 |
| 5493993 | Decoy A decoy capable of assuming the shape of a water craft comprises a maneuvble vessel, having a tubular body portion which defines an enclosed interior region. The vessel further has an opening formed in the body portion and a hatch door which covers the o... | 02/27/1996 |
| 4924445 | Sonobuoy cable pack A sonobuoy comprising: a sonobuoy body; a main cable having a proximal end secured to the body and a distal end; a spool on which the cable is wound from the distal end toward the proximal end; and release means securing the spool to the body, and operati... | 05/08/1990 |
| 4901287 | Underwater sonar array A sonar array connected to a data unit includes a substantial number of hydrophone units distributed along a small diameter cable having a substantial number of connecting wires, a center strength member and a tough polyurethane jacket. The hydrophone uni... | 02/13/1990 |
| 4823131 | Radar reflector A radar reflector (4, 5) comprises a hollow, generally spherical or conical radar transmitting housing (6) containing a radar reflecting assembly (10) having a number of trihedral cube corner reflecting elements arranged in strings one above the other and... | 04/18/1989 |
| 4747084 | Energy generators initiated by sea water for acoustic buoys and acoustic buoys equipped with such generators An energy generator of a Sonobuoy is overlapped by a sleeve or chimney guiding gas bubbles given off by the generator to a sufficient distance from an electro-acoustic transducer of the Sonobuoy, to prevent such bubbles from coming into contact with the t... | 05/24/1988 |
| 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 |
| 4278362 | Method for lifting an immersed device and returning it into position, and for carrying out said method The present invention relates to a method for lifting an immersed device and returning it into position, and to a device for carrying out the method, wherein the device to be lifted up is provided with a locating buoy and a wound up guide line whose ends ... | 07/14/1981 |
| 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 |
| 4202036 | Buoyancy control for ocean characteristic measurement system A system for measuring ocean characteristics. The system includes a sensor assembly and an associated means to control the system buoyancy to achieve cyclic ascent and descent at controlled speeds, either along a mooring line or free-drifting. Buoyancy co... | 05/06/1980 |
| 4202034 | Adaptive controller for ocean characteristic measurement system A system for measuring ocean characteristics. The system includes a sensor assembly and an associated means to control the system buoyancy to achieve cyclic ascent and descent at controlled speeds, either along a mooring line or free-drifting. Buoyancy co... | 05/06/1980 |
| 4185345 | Neg'ator spring powered underwater launching device A launching mechanism is provided for ejecting a small buoy from a high sd deep depth submersible. The buoy is held in place and constrained by a pair of latch levers that lock into a groove in the buoy tail piece. The latch levers are held in place by l... | 01/29/1980 |
| 4123813 | Buoyant float and flag assembly A float and flag assembly for use by divers includes a buoyant annular ring or member mounted on an elongated staff. A flag or signalling device is mounted on the staff at one end thereof. A lead weight or the like is secured to the other end of the post.... | 11/07/1978 |
| 3952349 | Variable buoyancy device A variable buoyancy device for automatically cycling an object between upward and downward limits including a regulator valve, inflatable device, deep dive control system, shallow dive control system, differential pressure valve, and weight compensating m... | 04/27/1976 |
