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"The abolishment of pain in surgery is a chimera. It is absurd to go on seeking it...knife and pain are two words in surgery that must forever be associated in the consciousness of the patient."
Dr. Alfred Velpeau, French surgeon ; 1839
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| Number | Title | Issue Date |
| 4840112 | Combined valve/cylinder using electro-rheological fluid Electrically controlled combined valve/cylinder apparatus. The apparatus includes a housing having a cylindrical body and spaced first and second end walls closing the body. A cylinder is positioned inside the body and a piston is positioned inside the cy... | 06/20/1989 |
| 4795677 | Oxidation-inhibited carbon-carbon composites Carbon-carbon composites consisting of graphite fibers reinforcing a carbon matrix are protected from oxidation by a B2 O3 glass coating which includes a refractory oxide to stabilize the viscosity of the glass. Precursors of B2... | 01/03/1989 |
| 4780682 | Funnel for ion accelerators A funnel for an ion accelerator comprises a magnetic lens in operative association with a resonator. Ions from different sources are accelerated to different predetermined energy levels and are separately aimed at the lens where the incoming ions are defl... | 10/25/1988 |
| 4774872 | Prestressed tube and tube joint A joint is provided for joining together two sections of a tube wherein the sections are prestressed by a surrounding pressure medium to press the sections together and to resist forces tending to separate the sections and the bursting pressure inside the... | 10/04/1988 |
| 4773945 | Solar cell with low infra-red absorption and method of manufacture A cell for using solar radiation to generate electrical power comprises a direct band gap (or high absorption coefficient) substrate which is formed with at least one hole that extends from one side of the substrate to the other side of the substrate. A p... | 09/27/1988 |
| 4759899 | Reactor with natural convection backup cooling system A nuclear reactor includes a core submerged in a pool of liquid. Under normal conditions, coolant flows through the core without intermixing with the liquid in the pool. In the event of failure of the primary coolant circulation system, liquid from the po... | 07/26/1988 |
| 4746547 | Method and apparatus for circulating bed coater This invention relates to particle coaters and in particular to a method and apparatus for a circulating bed particle coater which is particularly adapted for coating small diameter particles.... | 05/24/1988 |
| 4746370 | Photothermophotovoltaic converter A photothermophotovoltaic energy conversion system converts solar energy to electrical energy and includes a radiator and a photovoltaic cell. The photovoltaic cell receives incoming energy, including solar energy, and converts a first portion of the inco... | 05/24/1988 |
| 4745336 | Microwave generation by virtual cathode with phase velocity matching The present invention provides a vircator with improved efficiency. An elongated anode is aligned with an elongated cathode so as to produce an elongated virtual cathode when a direct current voltage source is electrically connected to the elongated catho... | 05/17/1988 |
| 4743880 | MRI magnet system having shield and method of manufacture A magnet system for providing a localized, substantially homogeneous field for use in medical magnetic resonance imaging and its incorporation into a method of siting. The magnet system includes a vacuum vessel defining a bore for receiving the subject of... | 05/10/1988 |
| 4734247 | Helical shaping method and apparatus to produce large translational transform in pinch plasma magnetic confinement A magnetically confined helical z-pinch plasma is formed as a helicoid having an approximately D-shaped cross section, thereby generating a large transform of magnetic field line pitch suitably distributed throughout the plasma volume to aid in the revers... | 03/29/1988 |
| 4734246 | Elongated toroid fusion device A toroidal fusion device with an elongated axial cross section is described which is capable of ignition without auxiliary heating and with modest toroidal magnetic field. The device is based on the principle that for elongated toroids the toroidal curren... | 03/29/1988 |
| 4723250 | Solid state cyclotron laser A solid state cyclotron laser device generate coherent electromagnetic radiation. A semiconductor configuration comprises an emitter region and a collector region separated by a base region and barrier layers on each side of the base. The semiconductor co... | 02/02/1988 |
| 4719429 | Transmission line microwave generator The present invention is a device for generating high power microwave pulses using a nonlinear dispersive transmission line connected by a switch means to a source cable means and a high voltage source. The closing of the switch means sends an electrical ... | 01/12/1988 |
| 4703885 | Method of welding austenitic steel to ferritic steel with filler alloys An austentic steel component is fused to a ferritic steel component with a filler alloy specifically formulated to have a thermal coefficient of expansion similar to that of the ferritic steel, a creep rate intermediate between that of the ferritic and au... | 11/03/1987 |
| 4703228 | Apparatus and method for providing a modulated electron beam An electron gun for emitting a modulated electron beam. The gun includes an evacuated envelope having an output end with a photocathode positioned in the envelope and responsive to light to emit electrons. An anode is positioned between the photocathode a... | 10/27/1987 |
| 4701616 | Apparatus and method for aiming a particle beam In aiming a neutral particle beam cross hair sights are first lined up relative to a target, and then the beam is lined up with the cross hair sights. Blocking means is disposed in a particle beam so as to absorb, scatter and/or otherwise remove particles... | 10/20/1987 |
| 4696781 | Composite first wall for fusion device A first wall structure for use in a fusion device surrounds the plasma region and includes a base wall which is substantially continuous. The base wall has an inner surface which faces the plasma region and an outer surface which faces the first wall cool... | 09/29/1987 |
| 4694269 | Magnet system and method of its manufacture A magnet system for providing a localized, substantially homogeneous magnetic field for use in nuclear magnetic resonance imaging. The magnet system includes a vacuum vessel defining a bore for receiving the subject of the imaging. It further includes a c... | 09/15/1987 |
| 4693281 | Variable modulus filament wound pressure tube Filament wound pressure tube has layers of filaments wound helically. The filaments of each such layer are disposed at an angle to a line parallel to the longitudinal axis of said tube which angle is approximately equal to a respective angle θ to the lin... | 09/15/1987 |
| 4688227 | Laser cooling of electron beam and free electron laser using laser cooling A method of cooling an electron beam with electrons having energies in excess of 10 MeV by directing a cooling laser beam over the path of the electron beam so as to achieve Compton scattering interactions, and a device which utilizes this method with oth... | 08/18/1987 |
| 4680936 | Cryogenic magnet systems According to the present invention, improved cryogenic magnet systems for use in MRI devices are provided. These systems comprise an electromagnet immersed in a first tank containing a first liquefied gas. The first tank is located in an evacuated contain... | 07/21/1987 |
| 4681015 | Rail gun barrel with axially prestressed insulators A rail gun barrel includes a pair of insulators which are axially prestressed in compression.... | 07/21/1987 |
| 4681016 | Rail gun barrel with gas containment means A rail gun barrel includes gas containment means for limiting the penetration of high pressure gas into interfaces between rails and insulating members. The preferred gas containment means comprises one or more channels formed in one or more of the interf... | 07/21/1987 |
| 4679197 | Gyro free electron laser A source of coherent radiation. The source includes an evacuated drift tube having an input end for receiving a beam of relativistic electrons and an output end for providing coherent radiation. A relativistic electron supply provides the beam of electron... | 07/07/1987 |
| 4665412 | Coupled heterostructure superlattice devices A superlattice quantum well device comprising a first set of conductive layers and a second set of conductive layers having discrete electronic energy levels different from those of the first set of layers, separated by relatively nonconductive insulation... | 05/12/1987 |
| 4663108 | Vacuum liner for a plasma device A vacuum liner for containing plasma in a plasma device. The liner includes a vacuum tight liner wall formed by sections with each section having a closed peripheral wall defining an interior with open ends. Adjacent interiors of the adjacent section form... | 05/05/1987 |
| 4663144 | Water-splitting cycle with graphite intercalation compounds Water is decomposed to molecular hydrogen and molecular oxygen in a thermochemical cycle which comprises (i) reacting Cl2, Br2 or BrCl with water to obtain oxygen and hydrogen halide; (ii) forming a graphite intercalation compound wi... | 05/05/1987 |
| 4663110 | Fusion blanket and method for producing directly fabricable fissile fuel A fusion blanket includes a chamber wall, a multiplication section, an enrichment section and a reflector in radially outward succession, respectively. The chamber wall isolates the fusion reaction chamber from the remainder of the blanket. Fusion neutron... | 05/05/1987 |
| 4660632 | Heat exchanger Heat exchange apparatus comprises a generally cylindrical tank having an inlet port for entry of gas and an outlet port for exit of the gas after it is cooled, and an annular bundle of tubes disposed within the tank. The tank includes a cylindrical side w... | 04/28/1987 |
| 4658229 | Magnet system providing a region of substantially homogeneous field strength A magnet system for providing a substantially homogeneous magnetic field in a region. The magnet system includes a main coil and a pair of correcting coils with the main coil generating a magnetic field in a zone including the region. The correcting coils... | 04/14/1987 |
| 4654182 | Apparatus for distributing the head load to the first wall from the plasma in an OTHE-type high-energy plasma device Apparatus for containing plasma in a high energy plasma device includes a vacuum tight liner wall made up, at least in part, by a series of sections each having a closed peripheral wall defining an interior with open ends. Adjacent sections form a plasma ... | 03/31/1987 |
| 4648271 | Anemometer having a graphite fiber hot wire A hot-wire anemometer includes a graphite fiber hot wire forming one arm of a resistance bridge. Graphite fibers have high tensile strengths, relatively high temperature coefficients of resistance and other thermal and electrical properties which make the... | 03/10/1987 |
| 4647888 | High heat capacity composites for a superconductor To thermally stabilize superconductors that are potted in a polymeric material, such as is common in superconducting coils, materials having extremely high heat capacities at the superconducting temperatures are incorporated into the potting material. The... | 03/03/1987 |
| 4641567 | Barrel assembly for electromagnetic rail gun A barrel assembly for an electromagnetic rail gun is strong enough to withstand bursting forces generated during firing of the gun and has cooling capacity sufficient to enable the barrel to be fired repeatedly without overheating. The barrel includes a p... | 02/10/1987 |
| 4639542 | Modular thermoelectric conversion system A thermoelectric conversion system including a burner assembly and a number of thermoelectric conversion modules for converting thermal energy resulting from the operation of the burner assembly into electrical energy. The burner assembly includes a centr... | 01/27/1987 |
| 4625618 | Electromagnetic rail gun system and cartridge therefor An electromagnetic rail gun system includes an electromagnetic rail gun, a power supply, a cartridge and breech means for holding the cartridge. The gun includes a breech end and a muzzle end and a pair of substantially parallel rails defining a bore for ... | 12/02/1986 |
| 4625193 | Magnet lead assembly A lead assembly provides an electrical connection between a magnet coil maintained at low temperature in a boiling liquid bath within a closed container and a power supply terminal maintained at a higher temperature outside of the container. The assembly ... | 11/25/1986 |
| 4624173 | Rail gun barrel assembly A rail gun barrel assembly includes barrel components which are radially constrained by a pressure medium contained within a lightweight outer shell.... | 11/25/1986 |
| 4622824 | Cryostat suspension system A low heat transfer suspension system for supporting from a warmer annularly shaped outer vessel an enclosed cold annularly shaped inner vessel is disclosed. The system comprises a truss comprised of a material with low coefficient of thermal conduction a... | 11/18/1986 |
