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    • 2. 发明申请
    • Speaker having a transparent panel
    • 扬声器有透明面板
    • US20050152564A1
    • 2005-07-14
    • US10756005
    • 2004-01-13
    • Kenneth HarrisVian LiTimothy Trzepacz
    • Kenneth HarrisVian LiTimothy Trzepacz
    • H04R1/00H04R7/04H04R9/06H04R11/02
    • H04R7/045H04R9/06
    • A speaker having a transparent sound panel and an exciter connected to the transparent sound panel for converting electrical energy received by the exciter, into vibrations that are transmitted to the transparent sound panel, resulting in the transparent sound panel transmitting sound. The speaker also contains a stiff panel located between the exciter and the transparent sound panel, where the stiff panel minimizes dampening qualities associated with material utilized to fabricate the transparent sound panel and minimizes bending of the portion of the transparent sound panel that is in contact with the stiff panel. In addition, a dampening pad is located within the exciter for absorbing a portion of excessive mid-high frequency vibrations emanating from the exciter prior to transmission to the transparent sound panel.
    • 具有透明声音面板的扬声器和连接到透明声音面板的用于将由激励器接收的电能转换成透射到透明声音面板的振动的激励器,导致透明声音板传播声音。 扬声器还包括位于激励器和透明声音面板之间的刚性面板,其中刚性面板最小化与用于制造透明声音面板的材料相关联的阻尼特性,并使与透明声音面板接触的部分的弯曲最小化 僵硬的面板。 此外,减振垫位于励磁机内,用于吸收在传输到透明声音板之前从激励器发出的过大的中高频振动的一部分。
    • 5. 发明申请
    • LOW SULFUR NICKEL-BASE SINGLE CRYSTAL SUPERALLOY WITH PPM ADDITIONS OF LANTHANUM AND YTTRIUM
    • 低硫镍基单晶超级合金与PPM添加剂
    • US20120034127A1
    • 2012-02-09
    • US12851111
    • 2010-08-05
    • Kenneth Harris
    • Kenneth Harris
    • C22C19/05
    • C22C19/057
    • A single crystal casting having substantially improved high-temperature oxidation resistance, hot corrosion (sulfidation) resistance, and resistance to creep under high temperature and high stress is characterized by an as-cast composition comprising a maximum sulfur content of 0.5 ppm by weight, a maximum phosphorus content of 20 ppm by weight, a maximum nitrogen content of 3 ppm by weight, a maximum oxygen content of 3 ppm by weight, and a combined yttrium and lanthanum content of 5-80 pm by weight. It has been discovered that careful control of the deleterious impurities, particularly sulfur, phosphorus, nitrogen and oxygen, in combination with a carefully controlled addition of yttrium and/or lanthanum provides unexpected improvements in corrosion and oxidation resistance, while also enhancing high-temperature, high-stress resistance to creep, without any detrimental effects on other mechanical properties, processing or producability, particularly castability.
    • 具有显着提高的高温抗氧化性,耐热腐蚀(耐硫化)性,耐高温和高应力下的蠕变性的单晶铸件的特征在于包含最大硫含量为0.5重量ppm的铸态组合物, 最大磷含量为20重量ppm,最大氮含量为3重量ppm,最大氧含量为3重量ppm,组合钇和镧含量为5-80微米。 已经发现,仔细控制有害杂质,特别是硫,磷,氮和氧,结合仔细控制的钇和/或镧添加,提供了耐腐蚀和抗氧化性的意想不到的改进,同时还提高了高温, 高应力耐蠕变性,对其他机械性能,加工或可生产性,特别是浇注性没有任何不利影响。
    • 8. 发明授权
    • Nickel-base superalloy for high temperature, high strain application
    • 镍基超级合金用于高温,高应变应用
    • US06632299B1
    • 2003-10-14
    • US09692750
    • 2000-10-19
    • Kenneth Harris
    • Kenneth Harris
    • C22C1905
    • C22C19/057
    • A nickel-base superalloy that exhibits outstanding mechanical properties under high temperature and high strain conditions when cast in an equiaxed and/or directionally solidified, columnar grain structure, and which exhibits increased grain boundary strength and ductility while maintaining microstructural stability includes, in percentages by weight, 5-6 chromium, 9-9.5 cobalt, 0.3-0.7 molybdenum, 8-9 tungsten, 5.9-6.3 tantalum, 0.05-0.25 titanium, 5.6-6.0 aluminum, 2.8-3.1 rhenium, 1.1-1.8 hafnium, 0.10-0.12 carbon, 0.010-0.024 boron, 0.011-0.020 zirconium, with the balance being nickel and incidental impurities. The superalloys of this invention are useful for casting gas turbine engine components exhibiting significantly improved low cycle fatigue life, improved airfoil high temperature stress rupture life, significantly reduced life cycle cost, and longer useful life.
    • 当在等轴和/或定向凝固的柱状晶粒结构中铸造时,在高温和高应变条件下表现出优异的机械性能并且在保持微观结构稳定性的同时显示出增加的晶界强度和延展性的镍基超级合金包括以百分比表示 重量,5-6铬,9-9.5钴,0.3-0.7钼,8-9钨,5.9-6.3钽,0.05-0.25钛,5.6-6.0铝,2.8-3.1铼,1.1-1.8铪,0.10-0.12 碳,0.010-0.024硼,0.011-0.020锆,余量为镍和偶然杂质。 本发明的超级合金可用于铸造燃料涡轮发动机部件,其显示出显着改善的低循环疲劳寿命,改进的翼型件高温应力断裂寿命,显着降低的寿命周期成本和更长的使用寿命。