Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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| Number | Title | Issue Date |
| 4112905 | Spark plugs for internal combustion engines A spark plug is equipped with a center electrode composed of two different metals, one of which is embedded in wire or fibre form in the other and wherein at least one of the metals possesses the properties of high electrical and thermal conductivity. The... | 09/12/1978 |
| 4103075 | Composite monolithic low-loss superconductor for power transmission line A composite superconductor having both filamentary and film conductors for carrying the pure and impure components of direct current, respectively, or for alternating current, is disclosed, together with a method of making it, and a preferred arrangement ... | 07/25/1978 |
| 4100044 | Procedure for removing aluminum from an Al-Al3 Ni two-phase matrix An electrolytic process for removing aluminum from a solid two-phase matrix of aluminum and trialuminum nickelide filaments by passing an electric current between an inert anode, a cathode composed of the matrix while both are immersed in an aluminum hali... | 07/11/1978 |
| 4099988 | Composite material having wear- and impact-resisting surface and process for producing same A composite material is produced by placing a plurality of blocks of cast iron having high wear-resisting properties on the bottom of a mold, pouring into the mold a molten impact-resisting cast steel, allowing the molten steel to solidify and subjecting ... | 07/11/1978 |
| 4082864 | Reinforced metal matrix composite A carbon fiber reinforced metal matrix composite is produced by depositing a metal boride coating on the surface of the fibers and subsequently immersing the fibers in a molten bath of the metal matrix material. The boride coating is formed by passing car... | 04/04/1978 |
| 4069576 | Wound wire reinforcing bands and method A method and apparatus for fabricating reinforcing bands for strengthening arts to be subjected to high centrifugal stresses. The reinforcing bands are made of coiled wire with a high modulus of elasticity and with a matrix of light metal or light-metal al... | 01/24/1978 |
| 4066422 | Wear-resistant composite material and method of making an article thereof A wear-resistant composite material and method of making an article thereof is disclosed which is particularly adaptable for use with a ground-engaging tool. The composite material has a plurality of abrasive-resistant particles embedded in an iron-boron ... | 01/03/1978 |
| 4053011 | Process for reinforcing aluminum alloy A composite reinforced with polycrystalline alumina fibers in a matrix of an aluminum alloy containing 0.5-5.5% by weight of the matrix of lithium is prepared by infiltrating alumina fibers with a molten alloy containing aluminum and 1-8% by weight of lit... | 10/11/1977 |
| 4017890 | Intermetallic compound layer in thin films for improved electromigration resistance A method and resulting structure for forming narrow intermetallic stripes which will carry high currents on bodies such as semiconductors, integrated circuits, magnetic bubbles structures, etc. The conductive stripe includes aluminum or aluminum copper wi... | 04/12/1977 |
| 4013492 | Method of simultaneously plating dissimilar metals A method of simultaneously preparing and plating two parts attached together in an assembly, which parts are of different materials, such as steel and aluminum, and are incompatible with one another in the plating preparation process. The method includes ... | 03/22/1977 |
| 4012204 | Aluminum alloy reinforced with alumina fibers and lithium wetting agent A composite reinforced with polycrystalline alumina fibers in a matrix of an aluminum alloy containing 0.5-5.5% by weight of the matrix of lithium is prepared by infiltrating alumina fibers with a molten alloy containing aluminum and 1-8% by weight of lit... | 03/15/1977 |
| 4010005 | Copper foil having bond strength A copper foil having high bond strength with an insoluble particle-containing metal plate formed thereon, the plated copper foil being adapted for use in the preparation of, for example, a printed circuit.... | 03/01/1977 |
| 4007062 | Reinforced composite alloys, process and apparatus for the production thereof This invention relates to improved process and apparatus for producing reinforced composite light alloys. The improved apparatus comprises means for feeding a fluidized mixture of particulate additions, carried by a neutral gas, to a crucible in which a b... | 02/08/1977 |
| 4005255 | Extruded composite section A composite section with a body mainly of light metal which has embedded in it inserts of a metal of higher strength. The inserts are not round in cross section and engage in the matrix by virtue of their shape.... | 01/25/1977 |
| 3989602 | Method of making reinforced composite structures A process for making composite structures built up on a mandrel having a smooth outer surface by winding a filament having at least one flat side as viewed in cross-section upon that surface with the flat side against it, and then electroforming matrix ma... | 11/02/1976 |
| 3986842 | Multi-component metal coating consumable A multi-component metal coating consumable is provided in the form of a rod comprised of two different rod portions coaxially butt joined together in end-to-end relationship, one of said rod portions being a composite consisting essentially of at least 10... | 10/19/1976 |
| 3985557 | Method of producing a high strength composite of zircon An aluminum composite comprising aluminum as the principal metal, an alkaline earth metal or an alkali metal as a reducing agent, and a substantial amount of a non-metal filler such as zircon, alumina, zirconia or aluminum silicates, and a method of manuf... | 10/12/1976 |
| 3979042 | Vacuum brazing of nickel to aluminum A method for brazing nickel to aluminum in a vacuum and product produced thereby. The outer surface of the aluminum member to which the nickel member is to be brazed is precoated with a layer containing silicon and magnesium. The nickel and aluminum membe... | 09/07/1976 |
| 3976269 | Intrinsically tuned structural panel A structural panel of the skin-stiffener type, commonly used in aircraft construction, having significantly reduced vibration response, noise radiation and increased acoustic fatigue life, has a skin supported by uniformly spaced stiffeners which are loca... | 08/24/1976 |
| 3976853 | Non-fusible electrode, in particular for tungsten inert gas welding and a process for the production thereof An electrode, particularly for use in tungsten inert gas welding, and a method for the production thereof wherein the electrode consists of a thoriated tungsten electrode rod having a bore in the working end thereof with an internal surface roughness form... | 08/24/1976 |
| 3970445 | Wear-resistant alloy, and method of making same A wear-resistant alloy comprising boron, chromium and iron having maximum hardness for a given composition is produced by rapidly cooling and solidfying spheroidal particles of the molten alloy mixture. The resultant solid particles are then cast in the d... | 07/20/1976 |
| 3970136 | Method of manufacturing composite materials A process for forming a composite material comprising a metal matrix incorporating fibrous reinforcement having a pre-determined pattern of fibre orientation which includes the steps of providing in a mould substantially parallel fibre arrays in which eac... | 07/20/1976 |
| 3963425 | Composite materials A superconductor composite comprising at least one longitudinally extending superconductor filament or bundle of sub-filaments, each filament or bundle of sub-filaments being surrounded by and in good electrical contact with a matrix material, the matrix ... | 06/15/1976 |
| 3963450 | Reinforced cast product and method of making A reinforced ferrous metal casting and a method of making a reinforced ferrous metal casting wherein the reinforcing rods are located within tubular metal sheaths such that the metal sheaths become fused and bonded to the casting while the reinforcing rod... | 06/15/1976 |
| 3955934 | Semimanufactured product for use in jewelry A semimanufactured product for use in jewelry comprises a support band made of metal, on one face of which there is secured, by welding, at least one decorating band, also made of metal, provided with apertures. The surface of the support band and the surface ... | 05/11/1976 |
| 3948613 | Process for applying a protective wear surface to a wear part A process for providing a tungsten carbide wear surface to wear parts with relatively large wearing surfaces employs treated and nickel plated tungsten carbide tiles arranged in a matrix and brazed to a surface to be protected by employing low temperature... | 04/06/1976 |
| 3948612 | Pig for manufacturing cast iron A pig including a base of pig iron which covers and holds in position a mixture of components including low carbon metallic charge components, scrap iron and solid fuel material. The pig is formed of materials such that it is essentially free of oxides wh... | 04/06/1976 |
| 3945555 | Production of beryllium reinforced composite solid and hollow shafting Manufacturing process for a solid or hollow shaft consisting of aluminum or itanium with beryllium reinforcing therein. Beryllium rods are either clad with aluminum or titanium or, in the alternative, holes are drilled in an aluminum or titanium block whic... | 03/23/1976 |
| 3940262 | Reinforced foamed metal Foamed metal articles having reinforcing fibers, such as inorganic fibers; for example, fiberglass, refractory fibers, and metal fibers, dispersed in the foamed metal for strength improvement. Processes of manufacturing such fiber reinforced foamed metal ... | 02/24/1976 |
| 3940254 | Nickel clad steel coinage blank A two-component blank suitable for minting into a coin is described. The blank consists of a low-carbon steel core completely encased in nickel. The blank has magnetic properties sufficiently similar to a solid nickel coin of the same size that the minted... | 02/24/1976 |
| 3938964 | Beryllium reinforced composite solid and hollow shafting A solid or hollow shaft has an aluminum or titanium matrix reinforced with rcuate-shaped beryllium ribbons arranged around a central rod or core to form a circular cross-sectional configuration. The shaft has a high degree of torsional stiffness which enab... | 02/17/1976 |
| 3938962 | Laminated composite wear materials Metallic parts having a hard wear-resistant surface and the high impact resistance associated with softer materials are formed by coating a plurality of ductile, relatively soft metallic segments with a relatively hard wear-resistant material, stacking th... | 02/17/1976 |
| 3936577 | Method for concomitant particulate diamond deposition in electroless plating, and the product thereof This invention is a method for depositing on an article a coating containing at least one member of the group metals and metal alloys plus particulate dispersed diamond comprising contacting the surface of the article with a stable electroless plating bat... | 02/03/1976 |
| 3936298 | Metal composition and methods for preparing liquid-solid alloy metal composition and for casting the metal compositions This invention provides a composite composition comprising a metallic matrix having a concentration of third phase solid particles homogeneously dispersed throughout the metallic matrix. The metallic matrix can be liquid, solid or partially solid and can ... | 02/03/1976 |
| 3934985 | Multilayer structure A multilayer structure comprising alternating metal and dielectric layers and having intralayer junctions for interconnecting the metal layers. The intralayer junctions are made integral with end faces of the metal layers.... | 01/27/1976 |
