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    • 1. 发明授权
    • Adjustable head stack comb
    • 可调头垛梳
    • US07644493B2
    • 2010-01-12
    • US10884210
    • 2004-07-02
    • Sham S. NayarJohn G. GerogeorgeCraig A. ParsonsRonald J. Smith
    • Sham S. NayarJohn G. GerogeorgeCraig A. ParsonsRonald J. Smith
    • B23P19/04
    • G11B5/54G11B21/22Y10T29/5313Y10T29/53165
    • The application discloses an adjustable head stack comb having adjustable first and second comb plates. The adjustable comb plates include at least one tooth segment which cooperatively form a comb having at least one tooth. The first and second comb plates are adjusted to adjust dimensions of the at least one tooth cooperatively formed by the tooth segments of the first and second comb plates. In the embodiments disclosed, a relative position of the first and second comb plates is adjusted to adjust a thickness dimension of the at least one tooth formed by the at least one tooth segments of the first and second comb plates. Also in illustrated embodiments, the comb plates are cooperatively adjusted to adjust an elevation or z-height of the at least one tooth of the comb.
    • 本申请公开了一种具有可调节的第一和第二梳板的可调整头部堆叠梳子。 可调梳板包括至少一个齿段,其协作地形成具有至少一个齿的梳子。 第一和第二梳板被调节以调节由第一和第二梳板的齿段协同地形成的至少一个齿的尺寸。 在所公开的实施例中,调整第一和第二梳板的相对位置以调整由第一和第二梳板的至少一个齿段形成的至少一个齿的厚度尺寸。 同样在示出的实施例中,协同调节梳板以调节梳子的至少一个牙齿的高度或z高度。
    • 3. 发明授权
    • Condensation nucleus counter using mixing and cooling
    • 冷凝核计数器采用混合冷却
    • US5903338A
    • 1999-05-11
    • US022104
    • 1998-02-11
    • Rashid A. MavlievCraig A. Parsons
    • Rashid A. MavlievCraig A. Parsons
    • G01N15/06G01N1/26
    • G01N15/065
    • A modified mixing-type condensation nuclei counter for measuring the size and number of small particles is presented. A gas stream is saturated with respect to a working fluid. The saturated gas at a first temperature is mixed in a growth chamber with a sample gas at a second temperature that is lower than the first temperature. The mixture of the saturated gas and the sample gas at different temperatures results in supersaturation of the mixed gas with respect to the working fluid. Particles in the sample gas act as nucleation sites for condensation of the working fluid. The particles are thus grown to a larger size and therefore are more easily measured by known light-scattering particle detection methods. The efficiency of the supersaturation process is made even more efficient by cooling the growth chamber to a third temperature which is lower than the second temperature or by turbulently mixing the saturated gas and the sample gas. False count rate is reduced by filtering the saturated gas before it is mixed with the sample gas to remove droplets of the working fluid from the saturated gas.
    • 提出了一种用于测量小颗粒尺寸和数量的改进的混合型冷凝核计数器。 气流相对于工作流体饱和。 在第一温度下的饱和气体在生长室中与样品气体在低于第一温度的第二温度下混合。 在不同温度下,饱和气体和样品气体的混合物导致混合气体相对于工作流体过饱和。 样品气体中的颗粒充当工作流体冷凝的成核位置。 因此,颗粒生长到更大的尺寸,因此通过已知的光散射粒子检测方法更容易测量。 通过将生长室冷却至低于第二温度的第三温度或通过将饱和气体和样品气体混合混合,使过饱和过程的效率更高效。 通过在饱和气体与样品气体混合之前过滤饱和气体以从饱和气体中除去工作流体的液滴来减少假计数率。