Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7335892 | High energy photon detector and power source with MEMS switch An energy cell, employed as a passive energy source or a detector for sensing high energy photons, takes advantage of the differing electrical properties of metals to produce an induced electromagnetic force charge when exposed to dosages of high energy photons such... | 02/26/2008 |
| 6927407 | Radiation shielding arrangement A radiation shielding arrangement for shielding high-energy neutron radiation and gamma radiation from high-energy particle accelerators or storage rings includes a shielding element made of water-containing material, for example with chemically bound water or water... | 08/09/2005 |
| 6492034 | Heat shield In a heat shield (1), in particular for combustion chambers and for thermal fluid flow machines, the heat shield consists of a feltlike material (3) composed of compressed and sintered intermetallic fibers. Advantageously, the intermetallic fibers consist... | 12/10/2002 |
| 6353651 | Core catcher cooling by heat pipe A heat removal system for the under reactor pressure vessel area of a boiling water nuclear reactor system that provides both protection of the containment boundary from attack by molten core debris and cools the molten core debris to prevent a breach of ... | 03/05/2002 |
| 5926516 | Absorption structure for absorbing neutrons and method for producing an absorption structure An absorption structure for absorbing neutrons and a method for producing the absorption structure include placing a neutron-absorbing material between a first sheet and a second sheet. The sheets are joined together and a plurality of voids is formed bet... | 07/20/1999 |
| 5700962 | Metal matrix compositions for neutron shielding applications A neutron shield is formed of a boron carbide-metal matrix composite having a density ranging from 2.5 to 2.8 g/cm3 and a composition ranging from approximately 10 to 60 weight % of boron carbide and 40 to 90 weight % of metal matrix. The metal... | 12/23/1997 |
| 5629964 | Neutron absorbing apparatus A neutron absorbing apparatus which includes two adjacent neutron absorbing plates and a mounting assembly with latching means configured to be easily secured to fuel assemblies while the fuel assemblies remain under water in a fuel storage rack, thereby ... | 05/13/1997 |
| 5623526 | Method and apparatus for repair of nuclear reactor shroud In order to support a shroud against bending, shear, stress and torsion, straps which are preferably formed of the same material as the shroud, are placed in strategic positions with respect to cracks or the like type of weaknesses which have been detecte... | 04/22/1997 |
| 5583900 | Structural member having superior resistance to neutron irradiation embrittlement, austenitic steel for use in same, and use thereof This invention provides austenitic steel having a superior resistance to neutron irradiation, a nuclear reactor and a nuclear fission reactor using such steel. In the present invention, austenitic steel containing at least one of Pd and Pt is used for a m... | 12/10/1996 |
| 5498825 | Plutonium and nuclear toxic waste storage depot and method A method of removing radioactivity from the interior of a building by transporting radioactive material within a slurry, precipitating out or otherwise filtering out the then contaminated material outside the building, thus removing it in a continuous flu... | 03/12/1996 |
| 5402455 | Waste containment composite The present invention provides an improved multilayered storage structure composite material. The composite contains a fibrous mat made from interwoven fibers, preferably metallic fibers, that is encased with a concrete-based mixture to form a mat layer. ... | 03/28/1995 |
| 5398266 | Superconductive apparatus A superconductive apparatus having therein at least a superconductive member includes a lithium containing member so as to interrupt neutrons directed to the superconductive member.... | 03/14/1995 |
| 5315625 | Method for protecting the base of the reactor container in nuclear power plants, and a device for implementing the method This invention relates to a method for protecting the integrity of the reactor container base in nuclear power plants, and a device for implementing the method. The proposed method and device are applicable to all reactor types (PWR or pressurized water r... | 05/24/1994 |
| 5199671 | Extraterrestrial transportation apparatus and methods Greatly reduced costs for the transportation of small cargoes that can withstand extremely high decelerations and of materials from Earth and of lunar materials to a low Earth orbiting satellite is obtained by having such materials and cargoes in a crash-... | 04/06/1993 |
| 5198182 | Production of neutron-shielding tubes A method of forming a neutron-absorbing tube or a section of such tube, and the resulting tube. An elongate, generally rectangular metal ingot having a hollow interior is formed with at least one elongate metal divider in the interior forming chambers. Th... | 03/30/1993 |
| 5122332 | Protecting organisms and the environment from harmful radiation by controlling such radiation and safely disposing of its energy A radiation gradient is utilized to transform harmful radiant energy into safer, more useful forms, thus collecting, controlling and consuming the energies of radiant emissions and protecting the environment and living organisms from them. More specifical... | 06/16/1992 |
| 5104612 | Fuel handling grapple for nuclear reactor plants A fuel handling system for nuclear reactor plants comprising an improved underwater grapple means for transferring fuel units while submerged within a water containing reactor vessel. Wherein a novel structure is provided which allows for direct viewing d... | 04/14/1992 |
| 5102612 | Permanent refueling pool seal A permanent pool seal and neutron shield 30 for providing an effective water barrier over the annular space 28 between a nuclear reactor vessel flange 24 and a surrounding annular ledge 22 includes annular deck sections 32 supported on spaced ribs 46. Fle... | 04/07/1992 |
| 5084234 | Absorption casing for a source of radioactive radiation, particularly for a nuclear reactor The absorption casing for the absorbing of radioactive radiation and fission products comprises four layers of different materials which retain the various kinds of radiation and the gaseous fission products. The first layer (36) consists of lead and abso... | 01/28/1992 |
| 5028379 | Fuel handling system for nuclear reactor plants A fuel handling system for nuclear reactor plants comprising a camera containing underwater grapple means for transferring fuel units while submerged within a water containing reactor vessel.... | 07/02/1991 |
| 4997619 | Shield for a nuclear reactor A shield for a gas cooled nuclear reactor. The reactor vessel head is provided with two regions of material which act in synergism to reflect neutrons back to the core, attenuate gamma rays and neutrons, and allow heat recovery. The primary region attenua... | 03/05/1991 |
| 4971752 | Safety design for nuclear power plants A nuclear power plant installation comprises a nuclear reactor that is disposed in an underground reactor room and connected to power generating equipment on the ground surface by pipes which pass between the underground reactor room and the ground surfac... | 11/20/1990 |
| 4948981 | Primary manway shielding and exhaust covers for a steam generator Shielding and exhaust covers are disclosed herein which are mountable on the primary manways of a nuclear steam generator for protecting maintenance personnel from potentially harmful radiation during maintenance operations. Each of these doors includes m... | 08/14/1990 |
| 4941159 | Low neutron fluence nuclear reactor internals A new design for nuclear reactor internals resulting in reduced fast neutron leakage to the reactor vessel. The first step of the two-stage process reflects high energy or fast neutrons back into the core, by placement of a reflector made of tungsten, sta... | 07/10/1990 |
| 4882092 | Method of making radiation shielding elements for use in nuclear technology Nuclear residues with a Co60 specific activity of 1 to 100 Bq/g, such as concrete or metal parts of a nuclear reactor installation, are used as raw materials for the production of radiation shielding structures for such nuclear installation. The concrete ... | 11/21/1989 |
| 4783310 | Heat barrier for use in a nuclear reactor facility A thermal barrier for use in a nuclear reactor facility is disclosed herein. Generally, the thermal barrier comprises a flexible, heat-resistant web mounted over the annular space between the reactor vessel and the guard vessel in order to prevent convect... | 11/08/1988 |
| 4775120 | Extraterrestrial transportation apparatus and method Greatly reduced cost of extraterrestrial transporation of strong items and materials is obtained through the use of impact into a crash-capturing-containing facility for deceleration. Cargoes from both the Earth and Moon can be cheaply crash-transported t... | 10/04/1988 |
| 4767572 | Method of making radiation shielding elements for use in nuclear technology Nuclear residues, such as concrete or metal parts of a nuclear reactor installation, are used as raw materials for the production of radiation shielding structures for such nuclear installation. The concrete residues can be broken up to form an aggregate ... | 08/30/1988 |
| 4751021 | Bendable sheet material A neutron absorbing panel has improved resistance to loss of efficiency resulting from bending about an axis located at a designated side of the panel. The panel comprises a core of substantially uniform thickness formed of a sintered mixture of particles... | 06/14/1988 |
| 4743423 | Neutron shield panel arrangement for a nuclear reactor pressure vessel A shield panel for use in a nuclear reactor including a reactor vessel susceptible to embrittlement when bombarded with high energy neutrons and a nuclear reactor core mounted within the reactor vessel, the reactor vessel having a longitudinal axis and an... | 05/10/1988 |
| 4729869 | Modular radiation shielding system A modular radiation shielding system for use on the lower side of a nuclear steam generator tubesheet 14 to protect inspection and repair workers in the primary head 20 of the generator 10 from radiation of the tubesheet 14 and plurality of tubes 12 it se... | 03/08/1988 |
| 4727257 | Shield against radiations A shield against ionizing radiations comprises at least one layer including one or more boron minerals and/or one or more lead minerals and/or directly derived products, which preferably constitute the inert or slightly active aggregate fraction of cement... | 02/23/1988 |
| 4699752 | Shielding device A shielding device is disclosed for use in shielding the under-vessel area from radiation emanating above the lower terminus of a control rod drive of a power generating nuclear reactor of the boiling water type. The device may be comprised of a plurality... | 10/13/1987 |
| 4650643 | Neutron streaming shield for nuclear vessel cavity A neutron streaming shield comprising a plurality of wire mesh baskets, each basket located between two adjacent vessel nozzles, the total area of the nozzles and baskets being sufficient to intercept any streaming neutrons. The baskets are substantially ... | 03/17/1987 |
| 4644171 | Neutron absorbing panel A panel of neutron shielding material comprises outer sheathing layers of aluminum having therebetween alternate thin layers or plies of aluminum and metallurgically bonded uniform mixtures of aluminum particles and particles of a neutron absorbing materi... | 02/17/1987 |
| 4617170 | Assembly for a core of a nuclear reactor An element for a core of a nuclear reactor, includes a square grid assembly formed of a plurality of spacers distributed over the length of the element, structural elements interconnecting the spacers, rods regularly disposed in the square grid assembly a... | 10/14/1986 |
| 4587277 | Radiation shield A radiation shield superior to lead in absorbing/attenuating X-rays and the like made by molding with a resin binder a mixture of powders, namely lead oxide derived from scrap storage batteries, slag derived from electrorefining of aluminum, nickel or chr... | 05/06/1986 |
| 4584802 | Protective structure for the floor of a concrete enclosure having to contain a high temperature fluid The invention relates to a protective structure for a concrete enclosure able to contain a fluid, which can be raised to a high temperature. Starting from the floor of the enclosure, the structure comprises a porous layer, intersecting shaped sections and a ti... | 04/29/1986 |
| 4576785 | Reduction in rate of radiation exposure to excore nuclear reactor components A nuclear reactor is provided with novel composite assemblies at selected locations at the periphery of the reactor core in order to reduce the rate of radiation exposure to a critical pressure vessel weld. The composite assemblies include a shield zone a... | 03/18/1986 |
| 4563494 | Synthetic resin composition and process for producing the same A synthetic resin composition is provided which comprises at least one lanthanoid-containing compound selected from the group consisting of oxides, hydroxides, inorganic and/or organic acid salts and complexes of lanthanoids and a vinyl polymer. The resin... | 01/07/1986 |
