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    • 8. 发明授权
    • Vitrified bonded abrasive tools
    • 陶瓷粘结研磨工具
    • US06702867B2
    • 2004-03-09
    • US10221252
    • 2002-09-10
    • Lee A. CarmanIrvin F. HavensWesley A. King
    • Lee A. CarmanIrvin F. HavensWesley A. King
    • B24D302
    • B24D3/14B24D3/06B24D18/00
    • The present invention provides a vitrified-bonded abrasive tool wherein the abrasive grit portion comprises a thermally sensitive abrasive grain, such as sintered sol gel microcrystalline alpha alumina abrasive grain or superabrasive grain, and wherein the vitrified bond may be matured by firing at a temperature of about 700 to 1,100 ° C. The invention preferably is carried out with sintered sol gel microcrystalline alpha alumina abrasive grain and a phosphorous oxide-containing, alkaliborosilicate vitrified bond composition. In one embodiment, during firing at about 700 to 1,100 ° C., the vitrified bond of the invention comprises at least two immiscible, amorphous phases.
    • 本发明提供一种玻璃化粘合研磨工具,其中磨料砂砾部分包括热敏磨料颗粒,例如烧结溶胶凝胶微晶α氧化铝磨粒或超磨料颗粒,并且其中玻璃化粘结可以通过在 约700至1100℃。本发明优选用烧结溶胶凝胶微晶α氧化铝磨料颗粒和含氧化磷的,正硅硅酸盐玻璃化合物组合物进行。 在一个实施方案中,在约700至1100℃的焙烧期间,本发明的玻璃化粘结包含至少两种不混溶的无定形相。
    • 9. 发明授权
    • Absolute pressure regulator valve assembly
    • 绝对压力调节阀总成
    • US6050292A
    • 2000-04-18
    • US221221
    • 1998-12-23
    • Isaac RichmanJames D. GehrisWesley A. King
    • Isaac RichmanJames D. GehrisWesley A. King
    • F16K31/12F16K31/126F16K31/365
    • F16K31/365F16K31/1266G05D16/0619G05D16/18Y10T137/7782Y10T137/7836
    • An absolute pressure regulator valve assembly for controlling the absolute pressure (P.sub.C) of a fluid source. The absolute pressure regulator valve assembly includes a hollow housing having an inlet port and a discharge port. The inlet port is in fluid communication with the fluid source. The discharge port is associated with a valve seat. A bellows assembly is positioned within the housing. The bellows assembly has an open first end and a closed second end. The first end is gas-tight sealed to the housing and is in fluid communication with a means for providing a reference pressure (P.sub.R) within the bellows assembly. A valve closure element is attached to the closed end of the bellows assembly. The valve closure element is positioned relative to the valve seat wherein motion of the bellows assembly provides opening and closure of the discharge port. A force biasing assembly is attached to the housing for imposing a force on the closed end to provide a desired adjustment of the pressure at the inlet port. During operation, when a net force on the closed end in the direction of the valve seat is greater than a net force in an opposite direction caused by a decrease of pressure at the inlet port, the valve closure element moves in a direction towards the valve seat.
    • 用于控制流体源的绝对压力(PC)的绝对压力调节阀组件。 绝对压力调节阀组件包括具有入口和排出口的中空壳体。 入口端口与流体源流体连通。 排放口与阀座相连。 波纹管组件位于壳体内。 波纹管组件具有敞开的第一端和封闭的第二端。 第一端气密密封到壳体并与用于在波纹管组件内提供参考压力(PR)的装置流体连通。 阀闭合元件连接到波纹管组件的封闭端。 阀闭合元件相对于阀座定位,其中波纹管组件的运动提供了排出口的打开和关闭。 力偏压组件附接到壳体,以在封闭端部施加力,以提供对入口端口的压力的期望调节。 在操作期间,当封闭端在阀座方向上的净力大于由入口处的压力降低引起的相反方向上的净力时,阀闭合元件沿朝向阀门的方向移动 座位。