Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 8060169 | Superconductive compounds having high transition temperature, and methods for their use and preparation A new class of superconducting compositions, and methods for making and using them are described. These compositions exhibit superconductivity at temperatures in excess of 26° K. and are comprised of transition metal oxides having at least one additional element th... | 11/15/2011 |
| 7668578 | MgBsuperconductors A solid structure includes a substrate and a layer located on a surface of the substrate. The layer includes crystalline or polycrystalline MgB2. ... | 02/23/2010 |
| 7358212 | Method for producing multinary metal oxide powders in a pulsed reactor The invention relates to a method for producing a one-part, multinary metal oxide power which is suitable for producing high-temperature superconductors. To this end, a mixture of the corresponding metal salts and/or metal oxides and/or metals in the requisite stoic... | 04/15/2008 |
| 7338921 | MgB2 superconductor and method for preparation thereof An electrode is steeped in a solution of Mg and B and a negative voltage is applied to the electrode so as to precipitate superconductive MgB2 on the electrode. Superconductive MgB2 is easily manufactured in various forms and at low costs witho... | 03/04/2008 |
| 7220706 | Enhanced melt-textured growth A method for the enhanced melt-textured growth of superconducting crystals is disclosed for a sample having a first material capable of exhibiting superconducting properties. The sample is heated above a peritectic temperature of the first material, cooled below the... | 05/22/2007 |
| 7144562 | Synthesis of LiBC and hole-doped LiBC Methods are described for synthesizing stoichiometric LiBC and hole doped Li1-xBC (lithium borocarbide) according to heating processes, such as by both an arc-melting method and a sealed tantalum ampoule method. The arc-melting method requires forming a p... | 12/05/2006 |
| 7098559 | Engine using the transition state of a superconductor to produce energy The inventive method uses a superconductor to generate energy. The superconductor is alternated between a temperature above and below a critical temperature defined by a transition between the superconducting and non-superconducting states. The superconductor intera... | 08/29/2006 |
| 7060174 | Method for electrochemical synthesis of superconducting boron compound MgB A method for electrochemical synthesis of a superconducting boron compound MgB2 which comprises the steps of preparing a powder mixture of magnesium chloride, sodium chloride, potassium chloride and magnesium borate, drying the mixture by electrical heati... | 06/13/2006 |
| 7047637 | Method of manufacture of ceramic composite wiring structures for semiconductor devices Method of manufacture of a composite wiring structure for use with at least one semiconductor device, the structure having a first conductive member upon which the semiconductor device can be mounted for electrical connection thereto. A dielectric member, made of ce... | 05/23/2006 |
| 6964324 | Damper with magnetic fluid A damper in which magnetic particles are discouraged from settling irrespective of the kind of a magnetic fluid is provided. A damper is constituted of a vessel in which the magnetic fluid is accommodated and a slider (piston). As the piston, one that is made of a l... | 11/15/2005 |
| 6921866 | Method and apparatus for connecting high voltage leads to a high temperature super-conducting transformer A method and apparatus for connecting high voltage leads to a super-conducting transformer is provided that includes a first super-conducting coil set, a second super-conducting coil set, and a third super-conducting coil set. The first, second and third super-condu... | 07/26/2005 |
| 6610921 | Method and apparatus for containing and directing a flowable superconducting slurry A container system including a vessel for holding a thixotropic semi-solid aluminum alloy slurry during its processing as a billet and an ejection system for cleanly discharging the processed thixotropic semi-solid aluminum billet. The crucible is prefera... | 08/26/2003 |
| 6270908 | Rare earth zirconium oxide buffer layers on metal substrates A laminate article comprises a substrate and a biaxially textured (REx A.sub.(1-x))2 O2-(x/2) buffer layer over the substrate, wherein 0 | 08/07/2001 |
| 6157094 | Superconducting magnets and power supplies for superconducting devices The invention provides an apparatus for supplying power to superconducting loads includes a current source, a cryogenic region (e.g., a cryogenic chamber), a first switching device in series between the current source and a superconducting load, and a sec... | 12/05/2000 |
| 6119025 | Method of producing an electromagnetic signal A method of producing ceramic superconducting materials such as YBa2 Cu3 Ox includes blending together starting materials for the superconducting material. The blend of starting materials are formed into a layer and sinter... | 09/12/2000 |
| 5965959 | Superconducting magnets and power supplies for superconducting devices The invention provides an apparatus for supplying power to superconducting loads includes a current source, a cryogenic region (e.g., a cryogenic chamber), a first switching device in series between the current source and a superconducting load, and a sec... | 10/12/1999 |
| 5872079 | Superconductor and precursor therefor, their preparation and use of superconductor A superconductor comprising a compound of the formula (II): R1+x Ba2-x Cu3 O7-y1 (II) wherein not less than 40% of a crystal of the superconductor shows phase separation, and at (temperature, magnetic fi... | 02/16/1999 |
| 5747425 | High Tc superconductor magnetic shields and method of making same High Tc superconducting magnetic shields are provided, together with a method of fabricating such shields, wherein the shields exhibit very high critical applied magnetic field values of at least about 50 Gauss at 77 K. In fabrication procedure... | 05/05/1998 |
| 5540981 | Inorganic-containing composites Composites, and a method for preparing composites, are provided. The composites have a plurality of domains of inorganic compounds of from 0.4 to 1000 nanometers on the surfaces of a support material. The domains may contain one or more inorganic compound... | 07/30/1996 |
| 5462917 | Process of preparing superconductive oxide complexes containing L, Ba, Cu and O and method of using the same A superconductor material having a current density, J, of from about 30,000 to about 85,000 amps/cm2 at zero magnetic field and 77° K is disclosed. The 123 superconductor, of the formula L1 Ba2 Cu3 O6 | 10/31/1995 |
| 5430008 | Method and composition for improving flux pinning and critical current in superconductors Superconducting materials and methods of forming superconducting materials are disclosed. Highly oxidized superconductors are heated at a relatively high temperature so as to release oxygen, which migrates out of the material, and form a non-superconducti... | 07/04/1995 |
| 5409888 | Process for producing a high-temperature superconductor and also shaped bodies composed thereof To produce a high-temperature superconductor of the composition Bi2 (Sr,Ca)3 Cu2 O8+x having a strontium to calcium ratio of 5:1 to 2:1 and a value of x between 0 and 2, the oxides and/or carbonates of bismuth, ... | 04/25/1995 |
| 5376626 | Magnetic field operated superconductor switch A superconducting switch is composed of anisotropic magnetic material. The switch has a first superconducting section, a variable resistive section and a second superconducting section. An external magnetic field is applied so that the first and second su... | 12/27/1994 |
| 5360786 | Superconductive material The disclosed superconductive material has a characteristic in accordance with which electrical resistance disappears at a temperature of at least more than the boiling point of 20.3° K. (-252.7° C.) of liquid hydrogen and relates to La-Ba-Cu-O series s... | 11/01/1994 |
| 5283234 | Superconducting shock absorber A contactless shock absorber assembly containing a chamber and a piston disposed therein is disclosed. The chamber is formed by alternating sections of superconductive material and electromagnetic coils; and the interior surfaces of the chamber define a s... | 02/01/1994 |
| 5269822 | Process for recovering oxygen from gaseous mixtures containing water or carbon dioxide which process employs barium-containing ion transport membranes The invention is a process for recovering oxygen from an oxygen-containing gaseous mixture containing one or more components selected from water, carbon dioxide or a volatile hydrocarbon which process utilizes ion transport membranes comprising a multicom... | 12/14/1993 |
| 5270291 | Method of reducing decay of magnetic shielding current in high Tc superconductors Magnetic shielding currents having a critical current density, Jc, at a superconducting temperature are stabilized by reducing the temperature of the superconducting body after a steady state or persistent current is established. The current density of th... | 12/14/1993 |
| 5261932 | Process for recovering oxygen from gaseous mixtures containing water or carbon dioxide which process employs ion transport membranes The invention is a process for recovering oxygen from an oxygen-containing gaseous mixture containing one or more components selected from water, carbon dioxide or a volatile hydrocarbon which process utilizes ion transport membranes comprising a multicom... | 11/16/1993 |
| 5240480 | Composite mixed conductor membranes for producing oxygen The present invention relates to novel multi-layer composite solid state membranes which are capable of separating oxygen from oxygen-containing gaseous mixtures at elevated temperatures. The membranes comprise a multicomponent metallic oxide porous layer... | 08/31/1993 |
| 5180706 | High-temperature porous-ceramic superconductors A method for fabricating a high-temperature ceramic superconductor having a Y-Ba-Cu-O or other copper-oxide composition of comparable properties so as to render the ceramic porous to define interlaced diffusion channels throughout the entire body of the c... | 01/19/1993 |
| 5166776 | Hybrid vapor cooled power lead for cryostat A power lead for a cryostat has high temperature superconducting (HTSC) conductors extending inward toward a pool of liquid cryogen in the cryostat in series with normal conductors extending from the HTSC conductors to outside the cryostat. Tubular shroud... | 11/24/1992 |
| 5162301 | Separation of paramagnetic and diamagnetic gases The invention relates to a new method for the separation of gaseous paramagnetic species from diamagnetic or weakly paramagnetic gaseous species by contacting the mixture of such species with a high Tc superconductive material in permeable form, so that o... | 11/10/1992 |
| 5141180 | Satellite attitude control system using a superconducting magnetic loop A satellite comprising a deployable solar generator that can be oriented relative to the satellite body is kept facing the sun at all times. It includes an attitude stabilization device comprising a superconductive material closed loop carried by a suppor... | 08/25/1992 |
| 5122506 | Contactless mass moving system A process for moving a magnetized object at a velocity in excess of 10 kilometers per second is provided. In this process, a symmetrical chamber which contains alternating portions of superconductive material and electromagnetic coils is provided. A magne... | 06/16/1992 |
| 5121173 | Proximity effect very long wavlength infrared (VLWIR) radiation detector A VLWIR proximity effect detector 10 includes a substrate 12, a bulk superconducting material 14, a proximity layer 16 which overlies a portion of the bulk superconducting material 14, an insulator layer 17 and a transparent tunnelling electrode 18. Detec... | 06/09/1992 |
| 5057485 | Light detecting superconducting Josephson device In a device wherein a region which includes a superconducting weak link or a Josephson junction is irradiated with light or an electromagnetic wave so as to detect the light or an electromagnetic wave on the basis of the change of a superconducting critic... | 10/15/1991 |
| 5038127 | Process for reducing eddy currents in a superconductor strip, and a superconductor arrangement An arrangement of electrically anisotropic high-temperature superconductors (A1, A2) on a non-superconducting metal strip (1) for alternating-current applications, such as magnets and electrical machines, is specified in the case of which a relatively sim... | 08/06/1991 |
| 4992623 | Superconducting bus bar An electronic system having components operating at low temperature at various locations within the system, cryogenic fluid and electrical power are distributed by means of the same conduit. In one embodiment, the conduit consists of a supply section and ... | 02/12/1991 |
| 4894361 | Superconducting metal oxide Tl-Pb-Ca-Sr-O compositions and processes for manufacture and use Compositions having the nominal formula Tle Pba Cab Src Cud Ox wherein a is from about 1/10 to 3/2, b is from about 1 to 4, c is from about 1 to 3 d is from about 1 to 5 e is from about 3/10 to 1 x=(a+b+c... | 01/16/1990 |
| 4833050 | Electrochemical cells This invention relates to electrochemical cells wherein the cathode comprises ceramics containing copper oxides characterized as perovskites.... | 05/23/1989 |
