Nuclear Reactor Systems Situated In The Ocean Patents (Class 376/912)
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Patent number: 9390819Abstract: An underwater electricity production module includes an elongated cylindrical box, which includes a reactor compartment and an electricity generator compartment. The reactor compartment includes a reservoir chamber and a dry chamber. A nuclear reactor is located in the dry chamber. The reservoir chamber forms a safety water storage reservoir. At least a radial wall of the reservoir chamber is in a direct heat exchange relationship with a marine environment that surrounds the cylindrical box. The reservoir chamber and the dry chamber can be placed in fluid connection. A seawater inlet is formed in a radial wall of the receiving compartment. A duct connects the seawater inlet to the dry chamber. A quenching valve is in the duct. Opening of the quenching valve allows the dry chamber, and thus the nuclear reactor, to be quenched with seawater.Type: GrantFiled: January 18, 2013Date of Patent: July 12, 2016Assignee: DCNSInventor: Geoffrey Haratyk
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Patent number: 8687759Abstract: A power module assembly includes a reactor core immersed in a coolant and a reactor vessel housing the coolant and the reactor core. An internal dry containment vessel submerged in liquid substantially surrounds the reactor vessel in a gaseous environment. During an over-pressurization event the reactor vessel is configured to release the coolant into the containment vessel and remove a decay heat of the reactor core through condensation of the coolant on an inner surface of the containment vessel.Type: GrantFiled: November 15, 2007Date of Patent: April 1, 2014Assignee: The State of Oregon Acting by and Through the State Board of Higher Education on Behalf of Oregon State UniversityInventors: Jose N. Reyes, Jr., John T. Groome
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Patent number: 7978806Abstract: The Seafloor Power Station is one or more unmanned electric power generating Units (2) sending power to and operated from existing coastal sites by a manned facility (1) by connecting lines and hoses (3) delivering power to a grid by lines (4). Each Unit's hull (11) maintained in a vacuum, contains both nuclear steam and electricity generating systems. The hull functions as overpressure containment and as condenser in the event of a loss of coolant accident or other steam release. The Units operate submerged in very cold water, with depth set by remotely controlled vertical mooring systems, mounted on gravity mats (27). A Unit must be surfaced by its mooring system to refuel the reactor, an action both conspicuous and public, enabling international oversight of the fuel disposition.Type: GrantFiled: September 23, 2005Date of Patent: July 12, 2011Inventor: W. Z. (Zack) Hayman, III
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Patent number: 6714617Abstract: Encapsulating calcined radioactive waste in strong, corrosion-resistant spheres of dimensions such that heat from the radiation melts the ice at a rate which brings the spheres to the bottom of the permanent icefield in a relatively short time, with the resulting waste ultimately being no more hazardous than natural uranium ore.Type: GrantFiled: November 26, 2001Date of Patent: March 30, 2004Inventor: Ágúst Valfells
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Patent number: 6597755Abstract: A nuclear power plant (18) and its heat exhanger (26) are enclosed in an envelope (22) which is suspended above a bored shaft (14) from a support stem (30). When appropriate, the stem (30) can be melted by a furnace (34) to drop the envelope (22) to the bottom of the shaft (14). Sand (42) can then be dropped onto the envelope (22) through a drainage pipe (46). While the nuclear power plant (18) is operating and suspended in the shaft, spent fuel rods (70) are dropped into a sand blasting machine's hopper (130), mixed with sand and dropped into a bag (134) containing a small explosive device. The bag (134) is then dropped to the bottom of the shaft (14) and the explosive detonated to scatter the contents of the bag (134). Optionally, more sand or earth is then added to reduce heat and radiation to acceptable levels.Type: GrantFiled: June 21, 2002Date of Patent: July 22, 2003Inventor: Leroy Paul Seefeld
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Patent number: 5247553Abstract: The invention as presented consists of a submerged passively-safe power station including a pressurized water reactor capable of generating at least 600 MW of electricity, encased in a double hull vessel, and provides fresh water by using the spent thermal energy in a multistage flash desalination process.Type: GrantFiled: November 27, 1991Date of Patent: September 21, 1993Assignee: The United States of America as represented by the United States Department of EnergyInventor: J. Stephen Herring
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Patent number: 4919882Abstract: A method and apparatus for fabricating a nuclear reactor and a preformed containment building for a nuclear reactor. The nuclear steam supply system (NSSS) is assemblied at a manufacturing site while the containment building is constructed in parallel at the reactor site. The completed NSSS is then transported to the reactor site and installed in the specially formed containment building. The NSSS and its safeguards system preferably are formed as a low draft barge which is tugged to the reactor site along navigable waterways.Type: GrantFiled: October 21, 1983Date of Patent: April 24, 1990Assignee: Westinghouse Electric Corp.Inventors: Raymond J. Aul, Robert L. Howell, Lawrence W. Ramsey
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Patent number: 4839137Abstract: A method of providing a nuclear steam supply system that is constructed to include a barge or flotation base as an integrated portion thereof. The system is tested for operability and safety at the factory and then towed along navigable coastal or inland waterways, or overseas to foreign locations, to a prepared foundation site at its point of use. The overall unit is so constructed and arranged as to permit the removal of top and side portions to permit passage under low bridges and through narrow locks without requiring disassembly of safety class piping and wiring. The method further provides for a complete nuclear power plant constructed on multiple barges at a separate factory site in parallel with plant site preparation, i.e., in estuaries or caves.Type: GrantFiled: May 16, 1988Date of Patent: June 13, 1989Assignee: Westinghouse Electric Corp.Inventors: Stephen N. Tower, James A. Christenson, Howard E. Braun
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Patent number: 4613253Abstract: An underwater discharge system for discharging an effluent overboard through an aperture in a wall of an at least partially submersed structure. The effluent is discharged through a conduit into a pressurized chamber which is open to and extends below the surface of the water in which the effluent is to be discharged. The pressure in the chamber is maintained to sustain the level of water in the chamber below that at which the conduit enters the chamber. A tubular catchment for transporting the effluent to a location remote from the structure is positioned to have one end within the chamber, above water level, open to the chamber's atmosphere, and sized and arranged to receive the conduit within its opening. Pressure within the chamber is maintained to keep the effluent from spilling over the one end of the catchment into the water in the chamber. The other end of the catchment communicates with a discharge basin which transports the effluent to the remote location.Type: GrantFiled: May 4, 1984Date of Patent: September 23, 1986Assignee: Westinghouse Electric Corp.Inventor: James B. Marshall
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Patent number: 4435355Abstract: Power wheel with double action valves comprises a heat engine in form of a rotating vessel mounted to an axis supported at one end to a frame, or joined into a pipe or flexible hose as the other end is faced up by a side gear confronting a second side gear both gears intermeshing through a plurality of pinion gears mounted between first and second ends of both shafts, the pinion gears are activated through expansion valves concealing the shaft of the pinion gear, a plurality of expansion valves mounted on said outer perimeter on radial axis, each of said expansion valve including:A cylinder with mechanical float valvesA piston with piston rods penetrating the cylinderA valve control bar activated by stroke action of pistonsA helical mechanism to rotate spindle shaft by stroke action of pistonsA spindle shaft with two pawl bushingsA pinion gear joined to said spindle shaftA drive gear for delivering useful work output mounted to the shaft of the vessel or a drill bit whereby the power wheel with double actionType: GrantFiled: August 4, 1982Date of Patent: March 6, 1984Inventor: Friederich Weinert
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Patent number: 4340970Abstract: Power wheel comprises a heat engine consisting of several expansion valves rigidly situated around the circumference of a stationary side gear and centralized to a axis which rotates through the work out put by expanding a fluid centralized inside a valve unit by a heat source operating in intervals introduced through the rotation of the expansion valves by moving a valve plunger in or out of the heat elements which in return will expand or contract a fluid, to move push rods stroke wise in both directions to activate a spindle drive by rotating a pinion gear with ratchet units to achieve rotation in one direction.Type: GrantFiled: June 4, 1980Date of Patent: July 20, 1982Inventor: Friedrich Weinert
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Patent number: 4302291Abstract: A structure for an underwater nuclear power generating plant comprising a triangular platform formed of tubular leg and truss members upon which are attached one or more large spherical pressure vessels and one or more small cylindrical auxiliary pressure vessels.Type: GrantFiled: May 3, 1979Date of Patent: November 24, 1981Inventors: Stephen B. Severs, Harry V. Toll