Dual element fuse
    441.
    发明授权
    Dual element fuse 失效
    双元件保险丝

    公开(公告)号:US5355110A

    公开(公告)日:1994-10-11

    申请号:US120752

    申请日:1993-09-15

    CPC classification number: H01H85/36 H01H85/055 C08L2201/12 H01H2085/0004

    Abstract: An electrical interruption device is disclosed in which an overcurrent protective device is provided to interrupt electric current flow on a sustained overcurrent current occurring. The overcurrent protective device is characterized by a plunger which is held in tension against the force of a spring by a low temperature solder, and further in which a sleeve of insulating material, such as silicone, is provided about the plunger. Preferably, the overcurrent protective device includes a housing, with the plunger disposed in the housing and having one end extending therefrom to provide electric communication with the remainder of the electric circuit. The sleeve of insulating material preferably being located about the end of the plunger which extends from the housing. On a predetermined condition causing the solder to melt, the plunger is released and under the force of the spring is moved to a position retracted within the sleeve, interrupting the current flow. Advantageously, the overcurrent protective device may be used together with pulverulent arc quenching material. The sleeve acts to isolate the pulverulent arc quenching material from the plunger and prevent its interference with the plunger as it is moved under the force of the spring.

    Abstract translation: 公开了一种电气中断装置,其中提供过电流保护装置以在发生的持续过电流电流上中断电流流动。 过电流保护装置的特征在于柱塞,该柱塞通过低温焊料抵抗弹簧的力而被保持,并且其中绝缘材料如硅树脂的套筒围绕柱塞设置。 优选地,过电流保护装置包括壳体,其中柱塞设置在壳体中并且具有从其延伸的一端以提供与电路的其余部分的电连通。 绝缘材料的套管优选地围绕从壳体延伸的柱塞的端部。 在导致焊料熔化的预定条件下,柱塞被释放,并且在弹簧的力被移动到缩回套筒内的位置中,从而中断电流。 有利地,过电流保护装置可以与粉末灭弧材料一起使用。 套筒用于将粉状电弧淬火材料与柱塞隔离,并防止其在柱塞在弹簧的作用下移动时与柱塞的干涉。

    Shape memory alloy film actuated microvalve
    442.
    发明授权
    Shape memory alloy film actuated microvalve 失效
    形状记忆合金膜致动微型阀

    公开(公告)号:US5325880A

    公开(公告)日:1994-07-05

    申请号:US49572

    申请日:1993-04-19

    Abstract: A sub-miniature valve which provides an actuator of shape memory alloy film coupled so as to move a poppet adjacent to a valve port. The shape memory alloy film actuator is thermally cycled through its phase change transition temperature, resulting in either a contraction or elongation of the actuator. This causes the poppet to move relative to the port and either increase or decrease fluid flow. The shape memory alloy film is biased toward its deformed position when cooled below its transition temperature. The valve can be electrically operated with commonly available voltages, including those used for micro-electronics. The relatively large forces and displacements achieved using the shape memory alloy film provide less restriction and greater flow than in other similarly sized valves.

    Abstract translation: 提供形状记忆合金薄膜致动器的亚微型阀,该致动器联接成使阀座邻近阀口移动。 形状记忆合金膜致动器通过其相变转变温度热循环,导致致动器的收缩或伸长。 这使得提升阀相对于端口移动并增加或减少流体流量。 当冷却到其转变温度以下时,形状记忆合金膜被偏压到其变形位置。 阀门可以通常使用的电压进行电动操作,包括用于微电子的电压。 使用形状记忆合金膜实现的相对大的力和位移比其他类似尺寸的阀提供较少的限制和更大的流动。

    Shape memory alloy fastener
    443.
    发明授权
    Shape memory alloy fastener 失效
    形状记忆合金紧固件

    公开(公告)号:US5120175A

    公开(公告)日:1992-06-09

    申请号:US730222

    申请日:1991-07-15

    Abstract: A fastener having an elongated shank formed of a shape memory alloy, a head at the upper end of the shank, and an annular segment at the lower end of said shank having a deformed cross-sectional shape suitable for insertion into an opening extending through adjacent workpieces. The annular segment has a frusto-conical trained shape that is larger than this opening. The annular segment radially flares from the deformed shape to an approximation of the trained shape when heated above a critical transformation temperature, thereby securing the fastener in place with respect to the workpieces. Alternatively, a sleeve made of a different material (e.g. aluminum) extending over a portion or the entire length of the fastener can be added for improved deformational characteristics, by providing the same frusto-conical shape through axial contraction of the shank.

    Abstract translation: 一种紧固件,其具有由形状记忆合金形成的细长柄,在柄的上端处的头部,以及在所述柄的下端处的环形部分,其具有变形的横截面形状,其适于插入延伸穿过相邻 工件。 环形段具有大于该开口的截头圆锥形训练形状。 当加热到临界转变温度以上时,环形部分从变形的形状径向展开为训练形状的近似,从而将紧固件固定在相对于工件的适当位置。 或者,通过在柄的轴向收缩中提供相同的截头圆锥形状,可以添加由在紧固件的一部分或整个长度上延伸的不同材料(例如铝)的套筒以提高变形特性。

    Catheter with memory element-controlled steering
    444.
    发明授权
    Catheter with memory element-controlled steering 失效
    带记忆元素控制的导管导管

    公开(公告)号:US5090956A

    公开(公告)日:1992-02-25

    申请号:US444985

    申请日:1989-12-04

    Inventor: William C. McCoy

    Abstract: A maneuverable distal apparatus includes a temperature-activated memory element moving in a first direction to assume a predetermined shape when heated to a predetermined temperature and control means for selectively heating the memory element so that the memory element is moved in the first direction. A spring is provided for yieldably urging the memory element in a second direction away from the first direction upon cooling of the memory element to a temperature less than the predetermined temperature so that the memory element is moved to assume a shape other than the predetermined shape.

    Abstract translation: 机动式远端装置包括温度激活的存储元件,其被加热到预定温度时沿第一方向移动以呈现预定形状;以及控制装置,用于选择性地加热存储元件,使得存储元件沿第一方向移动。 提供了一种弹簧,用于在将存储元件冷却到小于预定温度的温度时,使存储元件在远离第一方向的第二方向上有力地推动存储元件,使得存储元件移动成呈现除了预定形状之外的形状。

    Thermal and current sensing switch
    446.
    发明授权
    Thermal and current sensing switch 失效
    热和电流检测开关

    公开(公告)号:US5014036A

    公开(公告)日:1991-05-07

    申请号:US468396

    申请日:1990-01-22

    Inventor: Kazumasa Komoto

    Abstract: A thermal and current sensing switch which brakes an associated electric circuit when an overcurrent is supplied to the electric circuit or the temperature of the electric apparatus rises beyond a predetermined temperature. The thermal and current sensing switch comprises a housing, fixed conductors fixed to the housing with the base ends thereof extended within the housing; a current fuse placed in the housing with the opposite terminals thereof in contact with the fixed conductors; a first spring biasing the current fuse away from the fixed conductors, a second spring pressing the current fuse against the fixed conductors against the force of the first spring, and a temperature sensing element provided between the housing and the second spring. When the ambient temperature rises beyond a predetermined temperature, the temperature sensing element reduces the force of the second spring to allow the first spring to separate the current fuse from the fixed conductors to break the electric circuit. The current fuse and the temperature sensing element are isolated electrically and thermal from each other so that the same are able to function independently.

    Abstract translation: 一个热电流检测开关,当过电流被提供给电路或者电气设备的温度升高超过预定温度时,其将相关的电路制动。 热电流检测开关包括壳体,固定导体固定到壳体,其基端延伸在壳体内; 当前的保险丝放置在壳体中,其相对端子与固定导体接触; 第一弹簧将电流保险丝偏压固定导体,第二弹簧克服第一弹簧的力将电流保险丝压靠在固定导体上,第二弹簧设置在壳体和第二弹簧之间。 当环境温度升高超过预定温度时,温度感测元件减小第二弹簧的力,以允许第一弹簧将电流保险丝与固定导体分开,以断开电路。 当前的保险丝和温度感测元件彼此电隔离和隔热,使得它们能够独立工作。

    Apparatus and method for sealing tubes
    447.
    发明授权
    Apparatus and method for sealing tubes 失效
    密封管的装置和方法

    公开(公告)号:US4976307A

    公开(公告)日:1990-12-11

    申请号:US272554

    申请日:1988-11-17

    CPC classification number: F28F11/02 C08L2201/12 F28F2255/04 Y10T29/49865

    Abstract: A plug member adapted for insertion into a tube end seals about its periphery in response to a predetermined activation to prevent fluid flow through the tube. In one embodiment, the plug contains annular rings that expand radially outwardly in response to thermal excitation. In an alternate embodiment, a welding material is forced about the plug periphery to seal with the interior surface of a tube in response to a predetermined activation.

    Abstract translation: 适于插入管端的塞子构件响应于预定的活动而围绕其周边密封以防止流体流过管。 在一个实施例中,塞子包含响应于热激励而径向向外膨胀的环形环。 在替代实施例中,响应于预定的激活,迫使焊接材料围绕塞周边与管的内表面密封。

    Wig having shape retaining element
    448.
    发明授权
    Wig having shape retaining element 失效
    假发具有形状保持元件

    公开(公告)号:US4949737A

    公开(公告)日:1990-08-21

    申请号:US378223

    申请日:1989-06-21

    CPC classification number: A41G3/0041 C08L2201/12

    Abstract: A wig having a shape retaining element for preventing turning-up, distortion and so on of a wig base. This shape retaining element (12) is made of a shape memory alloy whose transformation temperature (Af point) is higher than the surrounding temperature at a location between a surface of a user's head and the wig base during a period for which the wig (10) is worn on the head. The shape retaining element is arranged in position on the side of an inner surface or an outer surface of the wig base (11). When the shape retaining element is deformed into a corrugated configuration due to several uses, the shape retaining element is heated to a temperature equal to or higher than the transformation temperature, whereby the shape retaining element is restored to a beforehand stored shape. Thus, the wig can repeatedly be worn under new condition.

    Ornament and method of manufacturing the same
    449.
    发明授权
    Ornament and method of manufacturing the same 失效
    装饰品和制造方法相同

    公开(公告)号:US4943326A

    公开(公告)日:1990-07-24

    申请号:US260030

    申请日:1988-10-20

    CPC classification number: A44C27/003 C22F1/006 C08L2201/12 Y10S420/902

    Abstract: An ornament is disclosed, which is characterized in that a metallic alloy wire provided with a characteristic to show the superelastic effect at room temperature by making the metallic texture Austenite phase is overlapped on both ends and formed into an approximately circular ring shape to form a wound ring. A method of manufacturing the same claimed is that a prime wire of Ni--Ti type alloy is submitted to the cold processing rating from 20 to 50% to form a round or angular wire rod, said wire rod is wound up around a stick or pipe with a fixed outer diameter and submitted to the heat treatment at 300.degree. to 600.degree. C. under restraint of both ends of wire rod to form a wound ring of approximately circular ring shape and simultaneously the superelastic effect is given to said ring at room temperature by making the metallic texture thereof Austenite phase.

    Process for the antivibratory wedging of component parts of an
installation, and in particular a process for wedging the tubes of a
steam generator
    450.
    发明授权
    Process for the antivibratory wedging of component parts of an installation, and in particular a process for wedging the tubes of a steam generator 失效
    用于装置的组成部件的防振楔的工艺,特别是用于楔入蒸汽发生器的管的方法

    公开(公告)号:US4917172A

    公开(公告)日:1990-04-17

    申请号:US184231

    申请日:1988-04-21

    Applicant: Claude Falduti

    Inventor: Claude Falduti

    Abstract: The wedging members (15) are introduced between the components (4) at a temperature t0 substantially different from the working temperature ts of the stream generator. The wedging member (15) comprise at least one portion (22) of shape memory alloy having a first configuration at the temperature t0 and a second configuration at the temperature ts, such that the wedging parts (15) have an initial transverse dimension less than the width of the separation spaces between the components (4) at the temperature t0, and a transverse dimension substantially greater than the initial dimension at the temperature ts. The components are wedged automatically at the moment when the installation is brought to the working temperature. The invention is applicable in particular to the anti-vibratory bars disposed in the top part or chignon of a steam generator of a pressurized water nuclear reactor.

    Abstract translation: 楔形构件(15)以与流发生器的工作温度ts基本不同的温度t 0被引导到部件(4)之间。 楔形构件(15)包括形状记忆合金的至少一部分(22),其具有在温度t0处的第一构型和在温度ts下的第二构型,使得楔入部件(15)的初始横向尺寸小于 在温度t0下组分(4)之间的分离空间的宽度和在温度ts下基本上大于初始尺寸的横向尺寸。 在安装达到工作温度的时刻,组件自动楔入。 本发明特别适用于设置在加压水核反应堆的蒸汽发生器的顶部或香茅中的防振条。

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