Apparatus and method for measuring relative speed between a fluid and a reference
    1.
    发明授权
    Apparatus and method for measuring relative speed between a fluid and a reference 有权
    用于测量流体和基准之间的相对速度的装置和方法

    公开(公告)号:US08302490B2

    公开(公告)日:2012-11-06

    申请号:US12803236

    申请日:2010-06-22

    Inventor: William E. Baker

    CPC classification number: G01F1/667 G01P5/247

    Abstract: A pair of electro-acoustic transducers, one functioning as a speaker and the other functioning as a microphone, are operatively coupled to a reference which in turn is in communication with a fluid. A regenerative frequency filtering loop is operatively coupled between the transducers and functions to apply amplified signal to the speaker and produce an acoustic signal which propagates through the medium. The acoustic signal is sensed by the microphone and coupled to the regenerative loop input. For certain frequencies, the spacing between the transducers together with the speed of propagation of sound through the fluid combine with the frequency filtering of the regenerative loop to cause the loop to regenerate at a frequency indicative of the relative speed between the reference and the fluid.

    Abstract translation: 一对用作扬声器的电声换能器和用作麦克风的另一个电声换能器可操作地耦合到参考,该参考依次与流体连通。 再生频率滤波环路可操作地耦合在换能器之间并且用于将放大的信号施加到扬声器并产生传播通过介质的声信号。 声信号由麦克风感测并耦合到再生环路输入。 对于某些频率,换能器之间的间距与通过流体的声音的传播速度与再生环路的频率滤波相结合,以使循环以指示参考和流体之间的相对速度的频率再生。

    Ramp for loading small motorized vehicles on pickup trucks
    3.
    发明授权
    Ramp for loading small motorized vehicles on pickup trucks 失效
    在小型卡车上装载小型摩托车的斜坡

    公开(公告)号:US4700421A

    公开(公告)日:1987-10-20

    申请号:US832062

    申请日:1986-02-24

    CPC classification number: B60P1/43

    Abstract: A ramp assembly provides loading of small off-the-road vehicles onto, and unloading of such vehicles from the bed of a pick-up truck. The assembly includes a flexible support such as a sheet of lightweight chain link, cloth belting or the like which is connected at the upper end to the corner posts of the truck bed or otherwise secured to the truck and which is tensioned at the other end thereof by an elongate support member, connected at one end to the ball hitch on the truck. The connection to the corner posts is made by notched members which extend laterally from both sides of the flexible support to engage the walls of the posts.

    Abstract translation: 斜坡组件提供将小型越野车辆装载到这些车辆上并从该拾取车床上卸载这些车辆。 组件包括柔性支撑件,例如轻便链条,布带等的片材,其在上端连接到卡车底座的角柱或以其它方式固定到卡车并在其另一端处张紧 通过细长的支撑构件,其一端连接到卡车上的球钩。 与角柱的连接由从柔性支撑件的两侧横向延伸以与柱的壁接合的凹口构件制成。

    Relief valve
    4.
    发明授权
    Relief valve 失效
    泄压阀

    公开(公告)号:US4497338A

    公开(公告)日:1985-02-05

    申请号:US535209

    申请日:1983-09-23

    Inventor: William E. Baker

    Abstract: A relief valve for relieving excessive fluid pressures in a fluid pressure system comprising: a valve body having a cavity therein and an inlet port and an outlet port in fluid communication with the cavity; and a plug assembly carried in the valve body for reciprocal movement between a closed position in which the plug assembly prevents flow of fluids through the inlet port and an open position, in which the plug assembly permits flow of fluids through the inlet port and into the cavity for exit through the outlet port. A release mechanism is carried by the valve body for holding the plug assembly in the closed position but responsive to fluid pressures above a predetermined amount at the inlet port to release the plug assembly for movement toward the open position, the release mechanism including a split ring engageable with a corresponding annular shoulder carried by the valve body for holding the plug assembly in the closed position, the split ring being radially contractable in response to predetermined fluid pressures for disengagement from said annular shoulder, allowing the plug assembly to move toward the open position.

    Abstract translation: 一种用于减轻流体压力系统中的过大流体压力的安全阀,包括:阀体,其中具有空腔,以及与所述空腔流体连通的入口端口和出口; 以及插塞组件,其承载在所述阀体中,用于在关闭位置之间往复运动,在所述关闭位置中,所述插塞组件防止流体流过所述入口和打开位置,所述插头组件允许流体流过所述入口并进入所述入口端口 通过出口出口的腔。 释放机构由阀体承载,用于将塞子组件保持在关闭位置,但是响应于在入口端口处超过预定量的流体压力以释放插头组件以朝向打开位置移动,释放机构包括开口环 可与由阀体承载的相应的环形肩部相接合,用于将塞子组件保持在关闭位置,响应于预定的流体压力而使开口环径向收缩,以便从所述环形肩部脱离,允许插头组件向打开位置移动 。

    Cordless telephone system
    5.
    发明授权
    Cordless telephone system 失效
    无绳电话系统

    公开(公告)号:US4456793A

    公开(公告)日:1984-06-26

    申请号:US386722

    申请日:1982-06-09

    Abstract: The present key telephone system comprises cordless telephone stations (FIGS. 6 and 7) which communicate over a line-of-sight transmission end link (276 or 277). The system further comprises a central controller (101) for switching communications between the cordless stations and to the message network. The central controller does not provide any station to transmission channel concentration. Concentration occurs in the bidding by a cordless station for access to a channel provided by the line-of-sight transmission end link. A particular number of transmission channels are provided by the line-of-sight end link which are bid for by any practical number of cordless stations. Subsystem controllers (104) are provided in a large cordless key telephone system. The subsystem controller reformats data for transmission between the central controller (101) and a cordless station. A unique code identifies a cordless station so that the allocation of a new channel to a cordless station may occur automatically when a cordless station is detected within the boundaries of a new subsystem.

    Abstract translation: 本密钥电话系统包括通过视线传输端链路(276或277)进行通信的无绳电话站(图6和7)。 该系统还包括用于切换无绳站之间的通信和消息网络的中央控制器(101)。 中央控制器不提供任何站对传输信道的集中。 集中发生在无绳电台招标中,用于访问由视线传输端链路提供的频道。 通过视线端链路提供特定数量的传输信道,这些链路由任何实际数量的无绳站招标。 子系统控制器(104)设置在大型无绳电话系统中。 子系统控制器重新格式化用于在中央控制器(101)和无绳站之间传输的数据。 唯一的代码识别无绳站,使得当在新子系统的边界内检测到无绳站时,可以自动发生新无线站的新信道的分配。

    Digital FSK transmitter
    7.
    发明授权
    Digital FSK transmitter 失效
    数字FSK发射机

    公开(公告)号:US5365548A

    公开(公告)日:1994-11-15

    申请号:US032938

    申请日:1993-03-17

    Inventor: William E. Baker

    CPC classification number: H04L27/1563 H04L27/122

    Abstract: A digital FSK transmitter utilizing a clock feedback signal driving an accumulator to operate a pair of registers having a pair of preset numbers stored therein to selectively add said numbers through a binary adder to the accumulator to output the FSK signal thereby.

    Abstract translation: 数字FSK发射机利用驱动累加器的时钟反馈信号来操作一对存储在其中的一对预设号码的寄存器,以通过二进制加法器将所述数字选择性地添加到累加器,从而输出FSK信号。

    Digital FSK transmitter receiver and method of operating same
    8.
    发明授权
    Digital FSK transmitter receiver and method of operating same 失效
    数字FSK发射机接收机和操作方法相同

    公开(公告)号:US5311556A

    公开(公告)日:1994-05-10

    申请号:US752758

    申请日:1991-08-30

    Inventor: William E. Baker

    CPC classification number: H04L27/1563 H04L27/122

    Abstract: A digital FSK receiver includes a zero-crossing detector which detects the zero crossings in an FSK signal having at least two signal frequencies. The time interval between zero crossings is then measured with a first interval value corresponding to one of the signal frequencies and a second interval value corresponding to the other signal frequency. An accumulator outputs a digital signal which depends on whether the interval is at the first value or the second value, the digital signal including logical zeros and ones.

    Abstract translation: 数字FSK接收机包括过零检测器,其检测具有至少两个信号频率的FSK信号中的过零点。 然后用对应于信号频率之一的第一间隔值和对应于另一个信号频率的第二间隔值来测量过零点之间的时间间隔。 累加器输出取决于间隔是第一值还是第二值的数字信号,数字信号包括逻辑0和1。

    Electrically actuated valve
    9.
    发明授权
    Electrically actuated valve 失效
    电动阀

    公开(公告)号:US4235413A

    公开(公告)日:1980-11-25

    申请号:US913372

    申请日:1978-06-07

    Inventor: William E. Baker

    CPC classification number: F16K31/025

    Abstract: A fast-acting reliable electrically operated normally opened or normally closed valve includes a piston which is spring-biased open and which is actuable by pressurized actuating fluid to drive a plug against a valve seat to terminate working fluid flow. Operating current is passed through stainless steel and copper tubes which are connected in series and contain actuating fluid. The stainless steel tube is heated by the current and vaporizes the actuating fluid-generating pressure which forces the cooler fluid from the copper tube into driving relation with the piston. When current is turned off, the stainless steel tube cools decreasing the vapor pressure. The cooler fluid from the copper tube is forced into the stainless tube by the biasing spring and accelerates condensation in the stainless steel tube to lower the pressure and quickly re-open the valve. A unique seal arrangement includes an elastomeric sleeve disposed about a portion of the piston and secured at its ends to the piston and piston housing, respectively. The piston housing wall is arranged to restrain bulging of the seal at any one location during the piston stroke, thereby preventing rupture of the seal.

    Abstract translation: 快速可靠的电动常开​​或常闭阀包括活塞,其被弹簧偏压打开,并且可由加压的致动流体致动,以将塞子驱动抵靠阀座以终止工作流体流动。 工作电流通过串联连接并含有致动流体的不锈钢和铜管。 不锈钢管被电流加热并蒸发致动流体产生压力,迫使冷却器从铜管流体与活塞成驱动关系。 当电流关闭时,不锈钢管冷却降低蒸汽压力。 来自铜管的较冷的流体通过偏置弹簧被迫进入不锈钢管,并加速不锈钢管中的冷凝,以降低压力并快速重新打开阀门。 独特的密封装置包括围绕活塞的一部分设置并分别固定在活塞和活塞壳体上的弹性体套筒。 活塞壳体壁布置成在活塞冲程期间在任何一个位置处抑制密封件的膨胀,从而防止密封件的破裂。

    Pressure indicating device
    10.
    发明授权
    Pressure indicating device 失效
    压力指示装置

    公开(公告)号:US4166396A

    公开(公告)日:1979-09-04

    申请号:US895776

    申请日:1978-04-12

    Inventor: William E. Baker

    CPC classification number: G01L7/084

    Abstract: A pressure indicating device according to the present invention includes a diaphragm assembly engaging one extremity of an indicator actuating means whereby flexing of the diaphragm caused by fluid pressure or other force will induce movement of the indicator actuating means. Movement of an indicator in relation to a fixed delineated face caused by movement of the indicator actuating mechanism results in a visual representation of reading bearing some predetermined relationship to the pressure causing the flexing of the diaphragm.

    Abstract translation: 根据本发明的压力指示装置包括接合指示器致动装置的一个末端的隔膜组件,由此由流体压力或其它力引起的隔膜的弯曲将引起指示器致动装置的运动。 指示器相对于由指示器致动机构的运动引起的固定的划线面的移动导致读取的视觉表示,其与导致隔膜弯曲的压力有预定的关系。

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