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1. 发明授权

US3960343A Double wall ducting 失效
标题翻译：双壁管道
公开(公告)号：US3960343A
公开(公告)日：1976-06-01
申请号：US518377
申请日：1974-10-29
申请人： Harold R. Thompson , Ralph A. Anderson
发明人： Harold R. Thompson , Ralph A. Anderson
IPC分类号： F16L9/02 , B64D13/00 , F16L9/18 , F24F13/02 , B64D47/00
CPC分类号： B64D13/00 , F16L9/18 , F24F13/02 , Y02T50/44
摘要： A lightweight, high-strength duct comprised of two thin annular tubes, one fitted within the other, the outer tube having spaced annular stiffening beads extending radially outwardly therefrom, and one of the tubes being vented to prevent pressure differentials between the inner surface of the outer tube and the outer surface of the inner tube at various altitudes and temperatures.
摘要翻译：由两个薄的环形管组成的轻质的高强度管道，一个安装在另一个中的外管，外管具有从其径向向外延伸的间隔开的环形加强珠，并且其中一个管被排出以防止外管和内管的外表面在不同的高度和温度。

2. 发明授权

US4164143A Ultrasonic amplifier detector 失效
标题翻译：超声波放大器检测器
公开(公告)号：US4164143A
公开(公告)日：1979-08-14
申请号：US921935
申请日：1978-07-03
申请人： Ralph A. Anderson
发明人： Ralph A. Anderson
IPC分类号： G01F1/32
CPC分类号： G01F1/329 , G01F1/3245
摘要： Method and apparatus for amplification of amplitude-modulated, ultrasonic frequency, electronic signals providing superior loss-of-carrier signal detection. Low noise integrated circuits are employed to provide high amplification of low level input signals without adding appreciable electrical noise during the amplification process. An automatic gain control (AGC) circuit ensures a nearly constant level of ultrasonic signal amplitudes from the amplifier without excessive amplification of electrical noise under conditions of low applied input signals. The electrical noise, inherent in the system, has only minimal effect on the loss-of-carrier detector.
摘要翻译：用于放大幅度调制，超声波频率的电子信号的方法和装置，提供优异的载波丢失信号检测。采用低噪声集成电路来提供低电平输入信号的高放大率，而不会在放大过程中增加可观的电噪声。自动增益控制（AGC）电路确保来自放大器的超声信号幅度几乎恒定的水平，而在低施加输入信号的条件下不会过多地放大电噪声。系统固有的电噪声对载波丢失检测器的影响很小。

3. 发明授权

US4018023A Ceramic elements and insulation assembly including such elements 失效
标题翻译：陶瓷元件和绝缘组件包括这些元件
公开(公告)号：US4018023A
公开(公告)日：1977-04-19
申请号：US597109
申请日：1975-07-18
申请人： Ralph A. Anderson
发明人： Ralph A. Anderson
IPC分类号： F27D1/14 , E04B1/62 , F16B21/04
CPC分类号： F27D1/144 , Y10T403/53
摘要： A ceramic element or fastener is provided for supporting flexible insulation in a furnace of the type designed for high temperature operations. The insulation is supported upon a ceramic element which projects outwardly from a structural supporting member, and retained upon the element by a ceramic washer. The washer is fastened in locking engagement upon the element near its outer end. The base of the element is retained within a metal socket, the base of which is fastened to the support member to provide a firm but non-rigid attachment of the element to the structural supporting member.
摘要翻译：提供陶瓷元件或紧固件，用于在设计用于高温操作的炉子中支撑柔性绝缘。绝缘体被支撑在从结构支撑构件向外突出并由陶瓷垫圈保持在元件上的陶瓷元件上。垫圈在其外端附近紧固在元件上。元件的底部保持在金属插座内，金属插座的底部紧固到支撑构件，以提供元件牢固但非刚性地附接到结构支撑构件。

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