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    Handwriting system
    86.
    发明授权
    Handwriting system 失效
    手写体系

    公开(公告)号：US3930229A

    公开(公告)日：1975-12-30

    申请号：US43841374

    申请日：1974-01-31

    Applicant: STANFORD RESEARCH INST

    Inventor： CRANE HEWITT DAVID ,  SAVOIE ROBERT ELLIS

    IPC: G06F3/041 ,  G06K9/36 ,  G06K9/62 ,  G06K9/68 ,  G06K9/00

    CPC classification number: G06K9/6282

    Abstract: A system for identifying handwritten characters is provided wherein a pen and associated circuitry generate a sequence of signals representing a sequence of directions which is taken to write each character. The sequence of signals is applied to a logic circuit arrangement which, in response to the signal sequence generated in writing a character, produces a set of digital signals uniquely representative of said character.

    Abstract translation: 提供了一种用于识别手写字符的系统，其中笔和相关联的电路产生表示用于写入每个字符的方向序列的信号序列。 信号序列被施加到逻辑电路装置，逻辑电路装置响应于以字符的形式产生的信号序列产生独特地代表所述字符的一组数字信号。

    Epoxy resin with metal salt of bisphenol or novolac as fire resistant composition
    87.
    发明授权
    Epoxy resin with metal salt of bisphenol or novolac as fire resistant composition 失效
    环氧树脂与双酚或酚醛清漆的金属盐作为耐火组合物

    公开(公告)号：US3906055A

    公开(公告)日：1975-09-16

    申请号：US39584273

    申请日：1973-09-10

    Applicant: STANFORD RESEARCH INST

    Inventor： FISHMAN NORMAN ,  PARKINSON DEAN B

    IPC: C08G59/00 ,  C08K3/18 ,  C08K5/138 ,  C08L63/00 ,  C08L63/02 ,  C08G59/62 ,  C08K5/13

    CPC classification number: C08L63/00 ,  C08K5/138 ,  C08L2666/16

    Abstract: Epoxy resin compositions having improved fire resistance are formed by the introduction into an epoxy resin composition of the type formed from epichlorohydrin and a dihydric phenol, of a small amount of a reactive hydroxy group containing polyvalent metal salt of either a dihydric phenol or a phenol-aldehyde resin of the novolac type. The resulting resins evidence increased charring of the surface when exposed to heating by a flame or undergoing combustion, the char acting as a barrier to heat transfer from the flame and retarding the flow of volatile gases from the pyrolyzing resin.

    Abstract translation: 通过将由表氯醇和二元酚形成的类型的环氧树脂组合物引入少量含有二元酚或苯酚的多价金属盐的反应性羟基，形成具有改善的耐火性的环氧树脂组合物， 酚醛树脂的醛树脂。 所得到的树脂证明当暴露于火焰加热或经历燃烧时表面的炭黑增加，该焦炭作为阻挡来自火焰的热传递的阻碍并阻止挥发性气体从热解树脂的流动。

    Negative ion duoplasmatron mass spectrometer for isotope ratio analysis
    89.
    发明授权
    Negative ion duoplasmatron mass spectrometer for isotope ratio analysis 失效
    用于同位素比率分析的负离子DUOPLASMATRON质谱仪

    公开(公告)号：US3786249A

    公开(公告)日：1974-01-15

    申请号：US3786249D

    申请日：1971-12-20

    Applicant: STANFORD RESEARCH INST

    Inventor： ANBAR M ,  ABERTH W

    IPC: H01J49/12 ,  H01J49/30 ,  H01J39/28

    CPC classification number: H01J49/123 ,  H01J49/30

    Abstract: A technique for performing isotope ratio analysis is described which utilizes a negative ion mass spectrometer coupled with a negative ion duoplasmatron source. An untreated sample to be analyzed for a specific compound is diluted with a known amount of isotopic analog. The sample plus analog is volatilized if necessary, and purified by gas chromatography before entering the ion source. The extremely hot plasma of the duoplasmatron thoroughly fragments the large molecules and efficiently ionizes the input gas stream. The resulting ionized stream is analyzed in a magnetic mass spectrometer. The signals from a pair of peaks representing the common and noncommon tag isotope of the same element are converted to frequency signals and the frequency signals are converted to a ratio signal by a frequency ratio counter. The value of this ratio then indicates the precise amount of compound in the sample. The system operates very efficiently on stable, non-radioactive isotopes and is applicable to many analyses which cannot be performed with radioactive isotopes.

    Abstract translation: 描述了一种用于执行同位素比率分析的技术，其利用负离子质谱仪与负离子双质子源耦合。 用已知量的同位素类似物稀释待分析特定化合物的未处理样品。 如果需要，样品加类似物挥发，并在进入离子源之前通过气相色谱法纯化。 二等离子体的极热等离子体使大分子彻底碎裂，并有效地离子化输入气流。 在磁性质谱仪中分析得到的电离流。 来自表示同一元素的共同和非共同标签同位素的一对峰值的信号被转换为频率信号，并且通过频率比计数器将频率信号转换为比率信号。 该比率的值然后表示样品中化合物的精确量。 该系统对稳定的非放射性同位素非常有效地运行，适用于许多不能用放射性同位素进行的分析。

    Instrument for determining polymer deflection temperatures
    90.
    发明授权
    Instrument for determining polymer deflection temperatures 失效
    用于确定聚合物偏转温度的仪器

    公开(公告)号：US3774440A

    公开(公告)日：1973-11-27

    申请号：US3774440D

    申请日：1972-01-10

    Applicant: STANFORD RESEARCH INST

    Inventor： MARTINELLI F

    IPC: G01N25/04 ,  G01N3/20 ,  G01N25/00

    CPC classification number: G01N25/04

    Abstract: An instrument for determining polymer deflection temperatures, said instrument comprising a container holding an elongated sample of the polymer in a suspended position between its samplesupporting side walls, together with a plunger slidably engaged within said container and having a lower, wedge-shaped end which initially comes to rest against the undeflected sample in a position transverse to the longitudinal axis of the sample. A heater is employed to progressively elevate the temperature of the sample until the same deflects under the weight of the plunger, together with means associated with the plunger for signifying the resulting downward movement thereof and means for determining the temperature of the sample as this movement of the plunger occurs. In one embodiment, this downward movement of the plunger is detected by an electrobalance so arranged that a small suspended weight, spring-connected to the balance arm, is fully supported by the plunger as the latter rests against the nondeflected sample. This support is removed as the plunger moves downwardly with sample deflection, thereby causing a weight gain to be recorded by the electrobalance. The temperature of the sample at this point of weight gain is simultaneously read out from a thermocouple.

    Abstract translation: 一种用于确定聚合物偏转温度的仪器，所述仪器包括容纳聚合物的细长样品在其样品支撑侧壁之间的悬挂位置的容器，以及可滑动地接合在所述容器内并具有下部楔形端 其最初在垂直于样品的纵轴的位置抵靠未偏转的样品。 使用加热器逐渐升高样品的温度，直到在柱塞的重量下相同的偏转，以及与柱塞相关联的装置，用于表示其产生的向下运动，以及用于确定样品的温度的装置， 发生柱塞。 在一个实施例中，柱塞的这种向下运动通过电动平衡来检测，所述电动平衡装置被布置成使弹簧连接到平衡臂的小悬挂重量被柱塞完全支撑，因为柱塞抵靠未偏转的样品。 当柱塞随着样品偏转向下移动时，该支撑被移除，从而通过电气平衡来记录体重增益。 同时从热电偶读出在此增重点处的样品的温度。

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