Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 5182176 | Extruded wires having layers of superconducting alloy and refractory meal encased in a normal metal sheath A Type II superconducting filament is formed by surrounding a Type II superconducting alloy ingot with layers of a fine grain Type II superconducting alloy sheet, a barrier layer and a copper extrusion can. The composite is then reduced to a filament by h... | 01/26/1993 |
| 5178647 | Wear-resistant member A wear-resistant member formed comprises a sintered ceramic body essentially consisting of 0.1 to 15% by weight of at least one material selected from the group comprising molybdenum carbide, niobium carbide, hafnium carbide, tantalum carbide, tungsten ca... | 01/12/1993 |
| 5164270 | Iron-based alloys with corrosion resistance to oxygen-sulfur mixed gases An iron-based alloy with improved performance with exposure to oxygen-sulfur mixed gases with the alloy containing about 9-30 wt. % Cr and a small amount of Nb and/or Zr implanted on the surface of the alloy to diffuse a depth into the surface portion, wi... | 11/17/1992 |
| 5158693 | Oligoquinolinium metal oxide salts as sulfur corrosion inhibitors Quartenized derivatives of oligoquinoline have been reacted with refractory metal oxysalts to generate oligoquinolinium metal oxide salts which provide excellent corrosion inhibition of iron based alloy articles in sulfur containing media.... | 10/27/1992 |
| 5147063 | Titanium aluminide structure The invention resides in the fabrication of a structural element comprising a laminated composite having one portion or layer comprising alpha-phase titanium aluminide and another adjacent portion or layer comprising gamma-phase titanium aluminide. Prefer... | 09/15/1992 |
| 5139893 | Superconducting alloy core circumscribed by multiple layers of NbTi and refractory metal barrier layer having a normal metal sheath A Type II superconducting filament is formed by surrounding a Type II superconducting alloy ingot with layers of a fine grain Type II superconducting alloy sheet, a barrier layer and a copper extrusion can. The composite is then reduced to a filament by h... | 08/18/1992 |
| 5134038 | Thin film magnetic recording medium with controlled grain morphology and topology A magnetic storage medium is composed of a non-wettable substrate upon which a transient liquid metal layer is deposited and maintained as a distribution of discontinuous liquid features. A magnetic film layer is deposited on the transient liquid metal la... | 07/28/1992 |
| 5126213 | Coated near-alpha titanium articles Articles of titanium based materials are protected against alpha case formation such as results from exposure to air at high temperatures coating with a nickel-chromium based alloy. The coating may be deposited by ion plating, sputter plating or sputter i... | 06/30/1992 |
| 5123972 | Hardened insert and brake shoe for backstopping clutch An improved hardened insert and brake shoe adapted for use in bi-directional backstopping clutches is disclosed. The inserts are formed from a base material of high speed alloy tool steel, which is relatively inexpensive and easy to machine. The base mate... | 06/23/1992 |
| 5116690 | Oxidation resistant coating for titanium alloys and titanium alloy matrix composites An oxidation resistant coating for titanium alloys and titanium alloy matrix composites comprises an MCrAlX material. M is a metal selected from nickel, cobalt, and iron. X is an active element selected from Y, Yb, Zr and Hf.... | 05/26/1992 |
| 5104460 | Method to manufacture titanium aluminide matrix composites A method for fabricating a composite structure consisting of a filamentary material selected from the group consisting of silicon carbide, silicon carbide-coated boron, boron carbide-coated boron, titanium boride-coated silicon carbide and silicon-coated ... | 04/14/1992 |
| 5104461 | Hardened insert for backstopping clutch An improved hardened insert adapted for use in bi-directional backstopping clutches is disclosed. The inserts are formed from a base material of high speed alloy tool steel, which is relatively inexpensive and easy to machine. The base material is formed ... | 04/14/1992 |
| 5102747 | High temperature-resistant composite The invention relates to a high temperature-resistant composite which consists of at least one part of molybdenum or a molybdenum alloy, and at least one part of graphite, which parts are joined together by means of a zirconium solder. A two-ply interlaye... | 04/07/1992 |
| 5082621 | Neutron reflecting supermirror structure An improved neutron reflecting supermirror structure comprising a plurality of stacked sets of bilayers of neutron reflecting materials. The improved neutron reflecting supermirror structure is adapted to provide extremely good performance at high inciden... | 01/21/1992 |
| 5080981 | Nickel-containing alloys as an adhesive layer bonding metal substrates to ceramics The invention relates to the use of alloys containing 50 to 70% by weight of nickel, 10 to 40% by weight of chromium, 3 to 10% by weight of aluminum, 4 to 10% by weight of titanium and 1 to 3% by weight of silicon, which alloys have a coefficient of thermal expansion &#... | 01/14/1992 |
| 5077140 | Coating systems for titanium oxidation protection Coatings that provide substantial oxidation protection for titanium substrates are comprised of a continuous coating of ductile MCrAl or ductile MCr alloys where M is at least one metal selected from the group consisting of iron, nickel, and cobalt. Ducti... | 12/31/1991 |
| 5075178 | Black surface layer on light metal The invention relates to a cyanide-free electrolyte being harmless to the environment and to health which makes feasible the production of black surface layers on light metals or on alloys of the latter, preferably titanium, remaining deeply-black and adh... | 12/24/1991 |
| 5060845 | Method for manufacture titanium clad steel plate A method for manufacturing titanium clad steel plate by forming a slab assembly having an alloy steel substrate, a titanium metal or alloy cladding on said substrate and a Ni-Cr alloy foil or film having opposed surfaces between said alloy steel and said ... | 10/29/1991 |
| 5051288 | Thin film magnetic recording disk comprising alternating layers of a CoNi or CoPt alloy and a non-magnetic spacer layer An improved CoPt based or CoNi based alloy magnetic recording disk for horizontal recording has a magnetic recording layer which is a laminated structure of relatively thin magnetic alloy films separated by relatively thin non-magnetic spacer films. The r... | 09/24/1991 |
| 5032469 | Metal alloy coatings and methods for applying A method of coating a substrate comprises plasma spraying a prealloyed feed powder onto a substrate, where the prealloyed feed powder comprises a significant amount of an alloy of stainless steel and at least one refractory element selected from the group... | 07/16/1991 |
| 5030520 | Electrical conductor, in particular suitable for use as an insoluble anode in electrowinning processes, and in electrochemical processes in general, and process for producing it An electrical conductor is particularly suitable for use as an insoluble anode in electrowinning processes, and is composed of an inner core of copper coated with an outer, thinner layer of a transition metal, preferably selected from among tantalum, tita... | 07/09/1991 |
| 5028277 | Continuous thin sheet of TiAl intermetallic compound and process for producing same A continuous thin sheet of a TiAl intermetallic compound consisting of from 35 to 44 wt % Al and the balance Ti and unavoidable impurities, having a thickness of from 0.2 to 3 mm, and having a solidified, as-cast structure comprising columnar crystals ext... | 07/02/1991 |
| 5023147 | Ceramics-metal jointed body A ceramics-metal joined body which excels in high temperature characteristics and joint strength is formed by metallizing the surface of ceramics such as oxides, carbides, borides, nitrides, and composites thereof, and joining a metallic member through a ... | 06/11/1991 |
| 5019461 | Resistive overlayer for thin film devices A thin film, solid state device includes a conductive thin film formed on a substrate, with a resistive layer overlying the conductive thin film and with electrical contacts formed on the upper surface of the resistive layer. Electrical current flows betw... | 05/28/1991 |
| 5015536 | Method of mounting permanent magnets without organic adhesives A metal shaft is joined to a permanent magnet by a seal formed of a thin layer of a metal on the magnet which forms a bond with the magnet. A layer of a solorable metal provided on the thin layer and a layer of a low melting point solder contacting the me... | 05/14/1991 |
| 5013526 | Superconducting alloys comprising tungsten, molybdenum, silicon and oxygen A superconducting material made of tungsten or molybdenum containing a specified amount of silicon, a wiring made of this superconducting material, and a semiconductor device using this wiring. The above-mentioned superconducting material undegoes no damage ev... | 05/07/1991 |
| 5009966 | Hard outer coatings deposited on titanium or titanium alloys The invention discloses a coated substrate product comprised of a titanium of titanium alloy substrate, at least one thin interlayer composed of a non-reactive noble metal and a hard outer coating selected from the group comprised of a ceramic, a hard met... | 04/23/1991 |
| 5006421 | Metalization systems for heater/sensor elements Device comprising a substrate and a metallized sensor/heater element having a temperature coefficient of resistance of at least 2000 parts per million. Methods of fabricating the devices are also disclosed.... | 04/09/1991 |
| 5006419 | Structural component made of a titanium alloy and covered by a protective coating and method for producing the coating A structural component of titanium or titanium alloy is provided with a protective coating made substantially of an oxidation resistant and diffusion inhibiting base layer (2), an intermediate layer (3) forming a titanium fire inhibiting layer, and a cove... | 04/09/1991 |
| 4985310 | Multilayered metallurgical structure for an electronic component Disclosed is a multilayered metallurgical structure for an electronic component. The structure includes a base metallurgy which includes one or more layers of chromium, titanium, zirconium, hafnium, niobium, molybdenum, tantalum, cooper and/or aluminum. D... | 01/15/1991 |
| 4980244 | Protective alloy coatings comprising Cr-Al-Ru containing one or more of Y, Fe, Ni and Co Alloy compositions suitable for use in protecting refractory base alloy compositions are disclosed. The coating is formed of an alloy containing chromium, ruthenium and aluminum and which may contain iron, cobalt and nickel. The coating is found to be hig... | 12/25/1990 |
| 4978588 | Plated steel sheet for a can The invention provides a method for producing a coated steel sheet for a can. A film of aluminum, aluminum alloy, titanium or titanium alloy 0.005 to 5 μm thick is plated on one surface of a steel sheet by means of a dry process. A metal film is also pla... | 12/18/1990 |
| 4977034 | Process for coextrusion billets with multiple metallic cylindrical layers by hot isostatic pressing and product Coextrusion billets of two or more concentric metallic layers treated by a hot isostatic pressing (HIP) process in order to form a defect-free bondline between the contiguous touching metal layers. The HIP process can also be applied to extruded or furthe... | 12/11/1990 |
| 4966816 | Pack assembly for hot rolling A pack assembly for use in hot rolling a material sensitive to heat loss, such as gamma titanium aluminide. The pack assembly has a pair of opposed deformable metal cover plates adjacent opposite outer major surfaces of at least one flat product of the ma... | 10/30/1990 |
| 4959279 | Superconducting wire containing multifilamentary superconducting alloy A superconducting wire containing a multifilamentary superconducting alloy, comprising at least one composite containing a first matrix in which a plurality of superconducting alloy filaments have been arranged and a second matrix in which at least one co... | 09/25/1990 |
| 4946749 | Coated near-alpha titanium articles Articles of titanium based materials are protected against alpha case formation such as results from exposure to air at high temperatures by coating with an iron-chromium based alloy. The coating may be deposited by ion plating, sputter plating or sputter... | 08/07/1990 |
| 4942732 | Refractory metal composite coated article The coated article includes a refractory metal substrate having an oxidation resistant intermetallic layer formed in situ thereon; e.g., a fused refractory metal silicide layer, and a ceramic layer applied on and adhering to the intermetallic layer to pro... | 07/24/1990 |
| 4940638 | Plated steel sheet for a can Plated steel sheet for a can comprises: a steel sheet; an Al or Al alloy plated film of 0.005 to 5 μm in thickness on one surface of the steel sheet; and a plated film of 0.005 to 5 μm in thickness on the other surface of the steel sheet, the plated fil... | 07/10/1990 |
| 4933239 | Aluminide coating for superalloys A protective coating system for superalloys is described. The coating is an active element enriched aluminide, and can be formed by aluminizing an overlay coated superalloy, wherein during the aluminizing process, aluminum diffuses completely through the ... | 06/12/1990 |
| 4927714 | Refractory metal composite coated article The coated article includes a refractory metal substrate having an oxidation resistant intermetallic layer formed in situ thereon; e.g., a fused refractory metal silicide layer, and a ceramic layer applied on and adhering to the intermetallic layer to pro... | 05/22/1990 |
