Patent Number: 
Section: claims

1. A floating nuclear power reactor, comprising:a floating vessel having a bottom positioned beneath the water level of a body of water, sides extending upwardly from said bottom, and an upper end which is positioned above the water level of the body of water;a nuclear power reactor supported on said vessel;at least a portion of said nuclear power reactor being submerged in the body of water;said nuclear power reactor having a lower end, an upstanding side wall, and an upper end;a water passageway, having inner and outer ends, extending through said floating vessel and into said nuclear power reactor;a normally closed hatch movably associated with said water passageway;said hatch being movable between a normally closed position and an open position;said hatch, when in said closed position, closing said water passageway;said hatch, when in said open position, permitting water from the body of water to flow inwardly through said water passageway into said nuclear power reactor;a latch associated with said hatch which is movable from a latched position to an unlatched position;said latch, when in said latched position, maintaining said hatch in said closed position;said latch, when in said unlatched position, permitting said hatch to move from said closed position to said open position;and a condition responsive actuator positioned within said nuclear power reactor which causes said latch to move from said latched position to said unlatched position upon a condition within said nuclear power reactor reaching a predetermined level. 2. The floating nuclear power reactor of claim 1 wherein said condition responsive actuator is a temperature condition responsive actuator. 3. The floating nuclear power reactor of claim 1 wherein said condition responsive actuator is a pressure condition responsive actuator. 4. The floating nuclear power reactor of claim 1 wherein said water passageway extends into the lower end of said nuclear power reactor. 5. The floating nuclear power reactor of claim 1 wherein said water passageway extends through the upstanding side wall of said nuclear power reactor. 6. The floating nuclear power reactor of claim 1 wherein said water passageway extends into the upper end of the nuclear power reactor. 7. The floating nuclear power reactor of claim 6 wherein a second water passageway extends from the body of water through the upstanding side wall of the nuclear power reactor. 8. The floating nuclear power reactor of claim 7 wherein a third water passageway extends from the body of water into the lower end of the nuclear power reactor.