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 |
| 7226894 | Superconducting wire, method of manufacture thereof and the articles derived therefrom Disclosed herein is method for making a wire comprising contacting a first end of a first superconducting wire with a second end of a second superconducting wire, wherein the superconducting wire comprises a superconducting filament having a superconducting composit... | 06/05/2007 |
| 7056357 | Method for making solid electrolytic capacitor A method for making a solid electrolytic capacitor including a flat porous body is provided. This method utilizes a mold which includes a horizontal surface and four vertical side surfaces. The horizontal surface and the side surfaces define a cavity into which powd... | 06/06/2006 |
| 6605569 | Mg-doped high-temperature superconductor having low superconducting anisotropy and method for producing the superconductor A Mg-doped high-temperature superconductor having low superconducting anisotropy includes a two-dimensional layered structure constituted by a charge reservoir layer and a superconducting layer, wherein some or all atoms constituting the charge reservoir ... | 08/12/2003 |
| 6258754 | Large, strongly linked superconducting monoliths and process for making the same A process which relies on a joining technique between two individual strongly linked superconductors is disclosed. Specifically, this invention relates to fabrication of single domains of YBa2 Cu3 Ox or YBa2 Cu | 07/10/2001 |
| 6221813 | Shaped bodies comprising textured superconducting material and a process for their production The invention relates to a process for producing a shaped body, in which a mixture of oxidic starting powders or a superconducting material, which comprises at least 30% by volume of platelet-shaped primary particles and has such a composition that a high... | 04/24/2001 |
| 6191075 | Method of manufacturing a high temperature superconductor with improved transport properties A method of preparing a high temperature superconductor. A method of preparing a superconductor includes providing a powdered high temperature superconductor and a nanophase paramagnetic material. These components are combined to form a solid compacted ma... | 02/20/2001 |
| 6143697 | Method for producing superconducting thick film A method for producing a superconducting thick film involves the steps of forming a thick layer comprising a superconducting material on a substrate; firing the thick layer formed on the substrate; subjecting the fired thick layer to cold isostatic pressi... | 11/07/2000 |
| 6121205 | Bulk superconductor and process of preparing same A bulk superconductor including a plurality of units each composed of a substrate and a superconductive layer of R--Ba--Cu--O, where R is selected from La, Nd, Sm, Eu, Gd, Y, Dy, Ho, Er, Tm, Yb and mixtures thereof, formed on the substrate. The units are ... | 09/19/2000 |
| 6051534 | Process for making superconducting PBSCCO and PBSCCO parts A process for producing the 2223 phase of (Pb,Bi)SrCaCuO that is much faster than existing processes has the steps of: calcining a precursor powder mixture while maintaining intimate mixing of this precursor mixture by intermediate grindings during calcin... | 04/18/2000 |
| 5952272 | HIP method of making high temperature mercury-containing superconductors Hg,Tl-based superconductors are produced by HIPping. A new superconducting phase, having a double (Hg,Tl)-layer and the nominal composition: (Hg1-x Tlx)2 (Ba1-a Sra)2 (Ca1-b Yb | 09/14/1999 |
| 5929001 | Engineered flux-pinning centers in BSCCO TBCCO and YBCO superconductors A method of preparing a high temperature superconductor. A method of preparing a superconductor includes providing a powdered high temperature superconductor and a nanophase material. These components are combined to form a solid compacted mass with the m... | 07/27/1999 |
| 5786304 | Joining product of oxide superconducting material and process for producing the same A joining product of oxide superconducting materials having a high current density and process for producing the same. A joining product comprising a plurality of oxide superconducting materials having an identical crystal orientation joined with each oth... | 07/28/1998 |
| 5674814 | Synthesis of increased-density bismuth-based superconductors with cold isostatic pressing and heat treating The present invention is directed to a process for producing high temperature superconducting ceramic materials. More particularly, the present invention is directed to a process that enhances the densification of Bi1.8 Pb0.4 Sr... | 10/07/1997 |
| 5646097 | Method of fabricating a (1223) Tl-Ba-Ca-Cu-O superconductor A method is disclosed for fabricating a polycrystalline thallium-containing superconductor having high critical current at elevated temperatures and in the presence of a magnetic field. A powder precursor containing compounds other than thallium is ... | 07/08/1997 |
| 5627140 | Enhanced flux pinning in superconductors by embedding carbon nanotubes with BSCCO materials Enhanced flux pinning in superconductors is achieved by embedding carbon nanotubes into a superconducting matrix. The carbon nanotubes simulate the structure, size and shape of heavy ion induced columnar defects in a superconductor such as Bi2 ... | 05/06/1997 |
| 5545613 | Preparation of superconducting oxides and oxide-metal composites A method of preparing a superconducting oxide by combining the metallic elements of the oxide to form an alloy, followed by oxidation of the alloy to form the oxide. Superconducting oxide-metal composites are prepared in which a noble metal phase intimate... | 08/13/1996 |
| 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 |
| 5439878 | Method for preparing copper oxide superconductor containing carbonate radicals A process for preparing a copper oxide superconductor of (Ba,Sr)-Cu-C-O containing carbonate radicals is disclosed, which comprises the steps of: mixing alkaline earth metal compounds and a copper compound with a molar ratio of 1.1 to 2.25 to obtain a mix... | 08/08/1995 |
| 5439880 | Preparation of superconducting oxides by oxidizing a metallic alloy A method of preparing a superconducting oxide by combining the metallic elements of the oxide to form an alloy, followed by oxidation of the alloy to form the oxide. Superconducting oxide-metal composites are prepared in which a noble metal phase intimate... | 08/08/1995 |
| 5382405 | Method of manufacturing a shaped article from a powdered precursor A method of manufacturing a shaped article from a powdered precursor, wherein the components of the powdered precursor are subjected to a self-propagating high-temperature synthesis (SHS) reaction and are consolidated essentially simultaneously. The shape... | 01/17/1995 |
| 5344816 | Stable high oxidation state superconducting oxides High temperature superconducting oxide materials can be taken to a higher, but stable, state of oxidation by removing H-impurities, such as OH-, using I2 /O2 mixtures in a reactive atmosphere process. A higher Tc | 09/06/1994 |
| 5284823 | Superplastic forming of YBa2 Cu3 O7-x ceramic superconductors with or without silver addition A process for superplastically forming and shaping a solid object including 123 superconductor, including preparing a solid object having grains of 123 superconductor that have an average grain size of less than 10 microns, and superplastically deforming ... | 02/08/1994 |
| 5252545 | Dense high temperature ceramic oxide superconductors Dense superconducting ceramic oxide articles of manufacture and methods for producing these articles are described. Generally these articles are produced by first processing these superconducting oxides by ceramic processing techniques to optimize materia... | 10/12/1993 |
| 5223478 | Hot isostatic processing of high current density high temperature conductors A method to form a superconducting wire or ribbon contains the steps: (1) forming ceramic powder, (2) forming pellets from the powder, (3) inserting the pellets in a metal sheath, (4) reducing the cross-section of the sheathed pellets to form a composite,... | 06/29/1993 |
| 5221663 | Method for repairing an oxide superconducting connecting line A method for producing an oxide superconducting connecting line includes initially coating a line with at least one layer of a crystalline or amorphous metal alloy forming a superconductive oxide. The line is subsequently heated to a temperature below the... | 06/22/1993 |
| 5158930 | Method of improving superconducting qualities of fabricated constructs by shock preprocessing of precursor materials Disclosed is a method of improving the physical properties of superconducting materials which comprises: a. applying a high strain rate deformation to said materi The United States Government has rights in this invention pursuant to Contract No. W-7405-ENG-48 ... | 10/27/1992 |
| 5145829 | Method for manufacturing oxide high-temperature superconductor A compacted and highly oriented microstructure of the bulk-shaped Bi-Sr-Ca-Cu-O system oxide superconductor is obtained by the intermediate pressing method of the present invention. The growth rate of the high critical temperature phase in the bulk of Pb-... | 09/08/1992 |
| 5120704 | Method of making Tl-Sr-Ca-Cu-oxide superconductors comprising heating at elevated pressures in a sealed container High Tc superconducting compounds are made by forming a reaction mixture of the oxides of Sr, Cu, Ca and Tl, compressing these into a hardened body, and placing the hardened body into a container. The container is then evacuated and sealed. The... | 06/09/1992 |
| 5112801 | Mechanical alignment of particles for use in fabricating superconducting and permanent magnetic materials A method for mechanically aligning oriented superconducting or permanently magnetic materials for further processing into constructs. This pretreatment optimizes the final crystallographic orientation and, thus, properties in these constructs. Such materi... | 05/12/1992 |
| 5108985 | Bi-Pb-Sr-Ca-Cu oxide superconductor containing alkali metal and process for preparation thereof Disclosed is a process for the preparation of a composite metal oxide superconductor, in which a composite metal oxide composition comprising Bi, Pb, Sr, Ca and Cu and further containing an alkali metal at a specific ratio is used as the starting material... | 04/28/1992 |
| 5100866 | Process for producing compound oxide high temperature superconducting material Tly Cul-y O3-z where RE=Y or La A superconducting material and a process for producing a superconducting material comprising a compound oxide represented by the general formula: (Ba, γ)x (,ଲ)1 -x &3xb5;y Cu1-y O3-z | 03/31/1992 |
| 5061681 | Superconducting thin material and a method for preparing the same A now superconducting material comprising a compound oxide represented by the general formula: (Sr,γ)x (La,δ)1-x &3xb5;y Cu1-y O3-z in which "γ" represents an element of IIa group of the periodic table ... | 10/29/1991 |
| 5059584 | Method for hot isostatic pressing a ceramic article A method for treating a ceramic article by hot isostatic pressing provides for the placement of the ceramic article in a capsule with an oxygen donor which is separated from the ceramic article by an oxygen permeable barrier such as silica cloth. The sili... | 10/22/1991 |
| 5059585 | Method of making a sputtering target for a bismuth based superconductor A method for fabricating a low resistivity target for sputtering a bismuth-calcium-strontium-copper oxide superconductor. The method includes the steps of: preparing ingredient powders of a calcium carbonate, a strontium carbonate and a copper oxide; prod... | 10/22/1991 |
| 5045525 | Method for the synthesis of a high-temperature superconductor of a defined composition A method for the synthesis of an oxide high-temperature superconductor of defined composition by sintering of the starting oxides, wherein sintering is effected in a chemically and phyically closed system by generating a preset oxygen partial pressure thr... | 09/03/1991 |
| 5041416 | Superconductive metal matrix composites and method for making same A superconductor metal matrix composite formable into an electrical current carrying material. A superconductive particulate is intermixed with a normal metal matrix, pressed into form and heated to form the composite. The metal matrix surrounds the super... | 08/20/1991 |
| 5026680 | Method of manufacturing a powder of bi-based superconductive oxide containing lead and method of manufacturing a sintered body therefrom A Ca carbonate powder, a Sr carbonate powder, and a Cu oxide powder are mixed in predetermined proportions, and sintered at a first predetermined temperature into a Ca-Sr-Cu--O oxide sintered body. A Bi oxide powder and a Pb oxide powder are mixed in pred... | 06/25/1991 |
| 5010054 | Method for the preparation of superconducting products Superconducting products on the basis of crystalline superconducting compounds having the general formula (Me1)p (Me2)q Cu3 Ox FY, wherein Me1 is selected from Y, Sc and th... | 04/23/1991 |
| 4999338 | Preparation of metal/superconducting oxide composites Subject a heated, non-molten, intimate admixture of a base metal and a superconducting oxide material to pressure sufficient to form a densified article. The densified article is either superconducting as formed or capable of being rendered superconductin... | 03/12/1991 |
| 4980340 | Method of forming superconductor The method of producing a superconducting product includes: (a) providing a pressed-powder preform consisting essentially of YBa2 Cu3 O7-x where 0.0 | 12/25/1990 |
