Nuclear Reactor Systems Situated In The Ocean Patents (Class 376/912)
  • Patent number: 9390819
    Abstract: 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: Grant
    Filed: January 18, 2013
    Date of Patent: July 12, 2016
    Assignee: DCNS
    Inventor: Geoffrey Haratyk
  • Patent number: 8687759
    Abstract: 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: Grant
    Filed: November 15, 2007
    Date of Patent: April 1, 2014
    Assignee: The State of Oregon Acting by and Through the State Board of Higher Education on Behalf of Oregon State University
    Inventors: Jose N. Reyes, Jr., John T. Groome
  • Patent number: 7978806
    Abstract: 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: Grant
    Filed: September 23, 2005
    Date of Patent: July 12, 2011
    Inventor: W. Z. (Zack) Hayman, III
  • Patent number: 6714617
    Abstract: 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: Grant
    Filed: November 26, 2001
    Date of Patent: March 30, 2004
    Inventor: Ágúst Valfells
  • Patent number: 6597755
    Abstract: 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: Grant
    Filed: June 21, 2002
    Date of Patent: July 22, 2003
    Inventor: Leroy Paul Seefeld
  • Patent number: 5247553
    Abstract: 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: Grant
    Filed: November 27, 1991
    Date of Patent: September 21, 1993
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: J. Stephen Herring
  • Patent number: 4919882
    Abstract: 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: Grant
    Filed: October 21, 1983
    Date of Patent: April 24, 1990
    Assignee: Westinghouse Electric Corp.
    Inventors: Raymond J. Aul, Robert L. Howell, Lawrence W. Ramsey
  • Patent number: 4839137
    Abstract: 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: Grant
    Filed: May 16, 1988
    Date of Patent: June 13, 1989
    Assignee: Westinghouse Electric Corp.
    Inventors: Stephen N. Tower, James A. Christenson, Howard E. Braun
  • Patent number: 4613253
    Abstract: 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: Grant
    Filed: May 4, 1984
    Date of Patent: September 23, 1986
    Assignee: Westinghouse Electric Corp.
    Inventor: James B. Marshall
  • Patent number: 4435355
    Abstract: 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 action
    Type: Grant
    Filed: August 4, 1982
    Date of Patent: March 6, 1984
    Inventor: Friederich Weinert
  • Patent number: 4340970
    Abstract: 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: Grant
    Filed: June 4, 1980
    Date of Patent: July 20, 1982
    Inventor: Friedrich Weinert
  • Patent number: 4302291
    Abstract: 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: Grant
    Filed: May 3, 1979
    Date of Patent: November 24, 1981
    Inventors: Stephen B. Severs, Harry V. Toll