Molecular sieve type gas separation systems
    11.
    发明授权
    Molecular sieve type gas separation systems 失效
    分子筛型气体分离系统

    公开(公告)号:US4404005A

    公开(公告)日:1983-09-13

    申请号:US294004

    申请日:1981-08-18

    CPC classification number: B01D53/0454

    Abstract: A molecular sieve type gas separation system capable of delivering a product gas of controlled variable composition and being especially useful for the production of oxygen-enriched air as breathable gas for aircrew, has an apparatus for controlling the regeneration of the or each sieve bed so as to achieve delivery of the product gas with a constituent concentration which is variably selectable within a predetermined range of values.

    Abstract translation: 一种分子筛式气体分离系统,其能够输送受控可变成分的产物气体,并且特别用于生产用作空调的透气气体的富氧空气,具有用于控制每个筛床再生的装置,以便 以实现在预定值范围内可变地选择的成分浓度的产物气体的输送。

    Hearing aid with permanently adjusted frequency response
    13.
    发明授权
    Hearing aid with permanently adjusted frequency response 失效
    助听器具有永久调整的频率响应

    公开(公告)号:US5406633A

    公开(公告)日:1995-04-11

    申请号:US970628

    申请日:1992-11-03

    CPC classification number: H04R3/04 H04R25/356 H03H11/0422 H04R25/502 H04R25/70

    Abstract: A hearing aid is permanently adjusted to match prescribed amplification characteristics at predetermined frequencies. A single channel filter (24) includes three identical filter stages (60, 62, and 64) that are optionally cascaded in series. Each of the filter stages (60, 62, and 64) exhibits a frequency response curve having a first corner frequency (36) below which the magnitude of the response curve approaches a predetermined minimum value, a second corner frequency (38) above which the magnitude of the response curve approaches a maximum value, and a predetermined gain in magnitude between the minimum and maximum values.

    Abstract translation: 永久地调整助听器以匹配预定频率下的规定的放大特​​性。 单通道过滤器(24)包括可选地串联级联的三个相同的过滤器级(60,62和64)。 每个滤波器级(60,62和64)表现出具有第一转角频率(36)的频率响应曲线,低于该频率响应曲线的响应曲线的幅度接近预定的最小值,第二转角频率(38) 响应曲线的大小接近最大值,并且在最小值和最大值之间的幅度上的预定增益。

    Aid to hearing speech in a noisy environment
    14.
    发明授权
    Aid to hearing speech in a noisy environment 失效
    帮助在嘈杂的环境中听到演讲

    公开(公告)号:US5285502A

    公开(公告)日:1994-02-08

    申请号:US861301

    申请日:1992-03-31

    CPC classification number: H04R25/502 H04R2225/43

    Abstract: A signal processing circuit is incorporated into an audio reproducing device for suppressing noise while preserving distinctive features of speech. A noise detecting circuit includes a low pass filtering circuit (12) and a level detector (14). An output signal (C) from the detecting circuit controls a variable high pass filtering circuit (20) to attenuate a range of low frequencies of an input signal (A) proportional to the detected level of noise. The variable high pass filtering circuit exhibits a family of variable response curves (22, 24, and 26) that vary in slope below a common cut-off frequency (28) that is below a range of frequencies that convey a majority of second formant transitions between consonants and vowels.

    Abstract translation: 信号处理电路被并入到用于抑制噪声的音频再现装置中,同时保持语音的独特特征。 噪声检测电路包括低通滤波电路(12)和电平检测器(14)。 来自检测电路的输出信号(C)控制可变高通滤波电路(20),以衰减与检测到的噪声电平成比例的输入信号(A)的低频范围。 可变高通滤波电路表现出一系列可变响应曲线(22,24和26),其在低于传达大多数第二共振峰跃迁的频率范围之下的公共截止频率(28)下倾斜变化, 在辅音和元音之间。

    Dental bite relator
    16.
    发明授权
    Dental bite relator 失效
    牙咬咬牙

    公开(公告)号:US4449927A

    公开(公告)日:1984-05-22

    申请号:US355383

    申请日:1982-03-08

    CPC classification number: A61C9/00

    Abstract: A dental instrument for simultaneously taking an impression and a bite has a pair of parallel elongated bite tray holders which are laterally spaced apart and are connected together at one of their adjoining ends by a connector wire loop. A manipulating handle is fixed to one of the tray holders at the end opposite to its connected end and has an inner fixed leg portion which protrudes from the instrument at a close obtuse angle to pass the lip of a patient and has an integral free outer end portion that extends from the inner end at a sharp angle of at least 90.degree. for easier manipulation beyond the cheek of the patient by an operator. A bite tray is removably and slidably carried by and positioned between the tray holders.

    Abstract translation: 用于同时拍摄印象和咬合的牙科仪器具有一对平行的细长咬合托盘保持器,其横向间隔开并且通过连接器线环在其相邻端部中的一个处连接在一起。 操纵手柄在与其连接端相对的端部处固定到托盘保持器中的一个,并且具有内部固定的腿部,其以近似的钝角从仪器突出,以通过患者的唇缘,并具有一体的自由外端 该部分从内端以至少90度的锐角延伸,以便操作者更容易地操纵超过患者的脸颊。 咬托盘可移动地并可滑动地承载并定位在托盘托架之间。

    Water recovery system
    17.
    发明授权
    Water recovery system 失效
    水回收系统

    公开(公告)号:US4214454A

    公开(公告)日:1980-07-29

    申请号:US874234

    申请日:1978-02-01

    Inventor: James C. Taylor

    CPC classification number: E03B3/28 F24F3/1405 Y10S203/04

    Abstract: An apparatus for transforming the water vapor in the atmosphere into liquid water comprising a precipitating chamber, a mixing chamber, heat transfer system, and means for moving atmospheric air through the system.A method of producing liquid water from the atmosphere comprising the steps of passing a first stream of air past a heat absorbing element of a heat transfer system to cause water to precipitate onto the heat absorbing element; mixing the first air stream with a second air stream; passing the mixed air streams past the heat dissipating element of the heat transfer system; varying the proportion of amount of air from the first and second air streams to a predetermined ratio which is a function of the atmospheric conditions.

    Abstract translation: 一种用于将大气中的水蒸汽转化成液体水的装置,包括沉淀室,混合室,传热系统和用于使大气通过系统的装置。 一种从大气中生产液态水的方法,其特征在于包括以下步骤:使第一气流通过传热系统的吸热元件,使水沉淀到吸热元件上; 将第一气流与第二气流混合; 使混合气流经过传热系统的散热元件; 将来自第一和第二气流的空气量的比例改变为作为大气条件的函数的预定比例。

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