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 |
| 7160632 | Material for sliding contacts, clad composite material and small-sized DC motor using the same The invention provides a material for sliding contacts that is suitable for a small-sized DC motor used in recent downsized CD players and is excellent in durability. A material for sliding contacts used in a commutator of a small-sized DC motor that consists essent... | 01/09/2007 |
| 6913657 | Hard precious metal alloy member and method of manufacturing same A hard precious metal alloy member is constituted of a gold alloy, which has a gold Au content of from 37.50 to 98.45 wt %, and contains a hardening additive in a range of not less than 50 ppm but less than 15,000 ppm, wherein the hardening additive is constituted o... | 07/05/2005 |
| 6841012 | Anti-tarnish silver alloy An anti-tarnish silver alloy is provided including at least about 85% silver, with the balance including zinc, copper, indium, and tin. Also provided are articles made from the alloy and methods of making the articles. ... | 01/11/2005 |
| 6245166 | Material for sliding contact, composite clad material, and small-sized direct current motor using the same An object of the present invention is to provide a material for a sliding contact whose alloy composition does not contain an environmentally detrimental substance such as Cd, which exhibits excellent contact resistance, whose electrical functions are goo... | 06/12/2001 |
| 6139652 | Tarnish-resistant hardenable fine silver alloys A fine silver alloy composition having at least about 99.5 weight percent silver, with the balance containing an element, or an oxide of an element, selected from the group consisting of: aluminum, antimony, cadmium, gallium, germanium, indium, lithium, m... | 10/31/2000 |
| 5882441 | Silver colored alloy with low percentage copper A silver colored alloy, highly tarnish resistant, corrosion resistant and brittleness free is provided. The alloy includes 90% to 94% by weight silver, 3.50% to 7.35% by weight zinc, 1% to 3% by weight copper, and 0.1% to 2.5% by weight silicon. The alloy... | 03/16/1999 |
| 5171643 | Electric contact material and electric contact using said material An electric contact material comprising 0.01 to 2.0 weight % of Li, 0.01 weight % or more to less than 0.2 weight % of at least one rare earth metal and the remainder being Ag. The electric contact material may further comprise 0.1 to 1.0 weight % of at l... | 12/15/1992 |
| 5102480 | Ag-SnO-CdO electrical contact materials and manufacturing method thereof Novel Ag-SnO-CdO electrical contact materials are disclosed, which are made of ternary Ag alloys consisting of more than 5-12 weight % of Sn, 0.5-5 weight % of Cd, and a balance of Ag, the alloys having been prepared by melting and having been internal ox... | 04/07/1992 |
| 5021214 | Ag alloy of high discoloration resistance Ag allow generally used for decorative purposes such as silverware and accessories, including In and Al as a substitute for conventionally used Pd provides the products with high discoloration resistance and elegant tint inherent to Ag. Additional content... | 06/04/1991 |
| 4726858 | Recording material A recording material made of an alloy capable of exhibiting different spectral reflectances at an equal temperature, depending on a heating-cooling cycle to which the alloy is subjected. The alloy can possess in solid state different crystal structures at... | 02/23/1988 |
| 4647322 | Internal oxidized Ag-SnO system alloy electrical contact materials Internal oxidized Ag-SnO system alloy electrical contact materials having a moderate initial contact resistance and having no depletion layer is disclosed. The alloy is internal oxidized by having it sandwiched between pure silver thin layers, and is cut ... | 03/03/1987 |
| 4636270 | Internal oxidized Ag-Sn system alloy contact materials Electrical contact materials made from an internally oxidized Ag alloy containing 0.5 to 12 weight % of Sn. Internal oxidized structures which have been produced in the alloy at the forwardmost area along a progressive direction of internal oxidation and ... | 01/13/1987 |
| 4544611 | Conductive element metallized with a thick film silver composition A conductive element having a metallization paste screen printed on its surface is made using a paste containing 65 to 95% by weight silver and 5 to 35% by weight cadmium/antimony alloy dispersed in a liquid vehicle.... | 10/01/1985 |
| 4514238 | Internally oxidized Ag-Sn-Bi alloy electrical contact materials Internally oxidized Ag-Sn-Bi alloy electrical contact materials. The alloy contains a larger amount of Bi, viz., more than 2 weight percent of bismuth, whereby the Bi which can not be a solid solution with Ag and Sn and hence precipitates as a numerous nu... | 04/30/1985 |
| 4494831 | Spectacle frame This specification discloses a spectacle frame of titanium or titanium alloy having at least one location a brazed portion of titanium or titanium alloy joined with titanium or titanium alloy, or of titanium or titanium alloy joined with other metal, char... | 01/22/1985 |
| 4385892 | Setting compositions for dental purposes A novel setting composition for dental purposes comprises a dental silver amalgam alloy composed mainly of silver and tin, and including one or more of copper, zinc, indium, palladium and gold; mercury in an amount sufficient to amalgamate said alloy: and... | 05/31/1983 |
