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    • 3. 发明授权
    • High-efficiency infrared electric liquid-heater
    • 高效红外电热液体加热器
    • US5371830A
    • 1994-12-06
    • US105050
    • 1993-08-12
    • Howard W. Wachenheim
    • Howard W. Wachenheim
    • F24H1/10H05B3/00
    • F24H1/102H05B3/0052
    • An infrared electric liquid heater includes an elongated emitter unit contained within an outer containment tube to define an annular volume through which the to-be-heated water flows. The emitter unit includes a tubular silica-composition envelope that comes into direct contact with the water to be heated. A tungsten filament is contained within the envelope and is supported along the longitudinal axis by spaced-apart filament supports. The envelope is fabricated from a silica composition discovered to provide unique structural properties; the envelope drawn from a melt (by volume) of 99.88% to 99.94% pure silica (SiO.sub.2), 0.04% to 0.08% crystalline sodium borax (Na.sub.2 B.sub.4 O.sub.7.10H.sub.2), and 0.2% to 0.04% hydroxide of potassium (KOH). This composition has demonstrated a structural strength that allows for a high efficiency in-line, instant-on heater using only a single silica wall separating the electrically energized filament from the liquid being heated. The interior of the envelope is filled with an argon/krypton/hydrogen bromide gas mixture that re-deposits any metallic vapor arising from the filament back onto the surface of the filament to avoid undesired deposition of the material of the filament onto the inner surface of the envelope. The tungsten filament emits strongly between 1.mu. and 1.2.mu. in the near-infrared band. The containment tube is provided with a gold-deposited reflective surface to enhance the overall efficiency of the heater.
    • 红外电液加热器包括容纳在外部容纳管内的细长发射器单元,以限定待加热水流过的环形容积。 发射器单元包括与被加热水直接接触的管状二氧化硅组合物外壳。 钨丝被包含在外壳内,并通过间隔开的细丝支撑件沿着纵向轴线支撑。 信封由发现提供独特结构特性的二氧化硅组合物制成; 从纯度为99.88%至99.94%的纯二氧化硅(SiO 2),0.04%至0.08%的结晶硼砂(Na2B4O7.10H2)和0.2%至0.04%的氢氧化钾(KOH)的熔体(体积)吸收的外壳。 该组合物已经证明了结构强度,其允许高效率的在线即时加热器,其仅使用将电加热丝与被加热的液体分离的单个二氧化硅壁。 信封的内部填充有氩/氪/溴化氢气体混合物,其将从灯丝产生的任何金属蒸汽重新沉积到丝的表面上,以避免不期望地将细丝的材料沉积到 信封。 钨丝在近红外波段发射强度在1至1.2微米之间。 容纳管设置有金沉积的反射表面以提高加热器的整体效率。
    • 6. 发明授权
    • Brake assembly mechanism
    • 制动总成机构
    • US3595345A
    • 1971-07-27
    • US3595345D
    • 1969-06-18
    • HOWARD W WACHENHEIM
    • WACHENHEIM HOWARD W
    • F16D55/228F16D65/12F16D55/02
    • F16D65/121F16D55/228F16D65/123F16D65/128F16D2065/1312F16D2065/1328F16D2065/136F16D2065/1372F16D2065/138F16D2065/1392
    • A disc-type brake assembly is described in which the braking disc is an annular member having stopping surfaces facing laterally of the wheel. The disc is a hollow cast member having a plurality of radial passageways extending from the radially inner edge to the radially outer edge of the disc for cooling purposes, and the disc is divided circumferentially into two semicircular sections with the ends of the sections being spaced sufficiently to allow thermal expansion of the sections. The disc sections are fixedly attached to the wheel either by screws extending radially from the wheel into the radially outer edge of the disc or by projections integral with the disc and extending radially outwardly therefrom to engage with the wheel. In the latter form of attachment tension spring clips are used to join the disc sections at the ends thereof. An annular housing is provided which supports the radially inner edge of the disc member and has a plurality of cylinders extending radially outwardly therefrom on each side of the disc member so that the inner ends of the cylinders in effect from sidewalls for the housing partially enclosing the lateral surfaces of the disc. Each cylinder has an open end therein adjacent the braking disc and a closed end remote therefrom. A piston is provided in each cylinder which is operated hydraulically to travel axially of the cylinder toward the disc exerting a lateral force thereon for braking purposes. In addition to the cylinders being integral with the housing a conduit is formed integrally within the housing and cylinders continuously connecting each of the cylinders communicating the fluid thereto for the exertion of hydraulic pressure on the pistons. The cylinders are arranged circumferentially so that, while opposed pairs of cylinders are formed from cylinders on opposite sides of the disc, the cylinders in each pair are circumferentially spaced one from the other so that ready access may be had to the interior of each of the cylinders.