High-efficiency moving-magnet loudspeaker
    1.
    发明授权
    High-efficiency moving-magnet loudspeaker 有权
    高效移动磁体扬声器

    公开(公告)号:US06307287B1

    公开(公告)日:2001-10-23

    申请号:US09521368

    申请日:2000-03-08

    IPC分类号: F03G700

    摘要: A thermoacoustic driver incorporates a linear electrodynamic motor having electrical terminals and a moving part, a driver suspension housing, a piston, and a stiffness-enhancing device for raising the mechanical resonance frequency of the electrodynamic motor without reducing the piston stroke. The stiffness enhancement is accomplished by the use of specially optimized suspension spring structures and/or by attaching one or more electrical inductors to the electrical terminals of the driver. The stiffness enhancement using mechanical springs incorporates one or more starfish structures extending between the driver suspension housing and the piston and rigidly clamped to both. The starfish structures comprise radially extending legs, which are leaf springs or beams of varying width. The shape of the beams and the shape of the overall spring structure are optimized to enhance flexural or torsional stiffness and relieve arc tension within the constraints of cost-effectiveness. In one version, two modified triangular (trapezoidal) cantilever beams are connected through a straight middle section and form a bow-tie shaped beam.

    摘要翻译: 热声驱动器包括具有电端子和运动部件的线性电动马达,驱动器悬架壳体,活塞和用于提高电动马达的机械共振频率而不减小活塞冲程的刚度增强装置。 通过使用特别优化的悬架弹簧结构和/或通过将一个或多个电感器附接到驱动器的电端子来实现刚度增强。 使用机械弹簧的刚度增强结合了一个或多个在驱动器悬挂壳体和活塞之间延伸并且刚性地夹紧到两者的海星结构。 海星结构包括径向延伸的腿,其是板簧或不同宽度的梁。 优化梁的形状和整体弹簧结构的形状,以增强弯曲或扭转刚度,并在成本效益的限制内缓解电弧张力。 在一个版本中,两个改进的三角形(梯形)悬臂梁通过直的中间部分连接并形成弓形梁。

    MONITORING OF A LASER SOURCE WITH FRONT AND REAR OUTPUT PHOTODETECTORS TO DETERMINE FRONTAL LASER POWER AND POWER CHANGES OVER LASER LIFETIME
    3.
    发明申请
    MONITORING OF A LASER SOURCE WITH FRONT AND REAR OUTPUT PHOTODETECTORS TO DETERMINE FRONTAL LASER POWER AND POWER CHANGES OVER LASER LIFETIME 有权
    使用前置和后端输出光电元件监测激光源以确定激光寿命的正面激光功率和功率变化

    公开(公告)号:US20100220952A1

    公开(公告)日:2010-09-02

    申请号:US12758231

    申请日:2010-04-12

    IPC分类号: G02B6/12 H01S3/10 H01S3/13

    摘要: A power monitoring and correction to a desired power level of a laser or group of lasers utilizes two photodetectors which are employed to accurately determine the amount of output power from the front end or “customer” end of a laser or a plurality of such lasers. During power detection, which may be accomplished intermittently or continuously, the laser is modulated with a tone of low frequency modulation. One photodetector at the rear of the laser is employed to detect the DC value of the frequency tone, i.e., a value or number representative of the AC peak-to-peak swing, amplitude or modulation depth of the tone. Also, the rear photodetector may be employed to determine the optical modulation index (OMI). In either case, these values may be employed in a closed loop feedback system to adjust or otherwise calibrate the value of the low tone frequency relative to the total desired bias current applied to the laser. A front photodetector is employed to receive a portion of the total output of the laser, or of each laser, and the average output power of the laser, or of each laser, is determined from already knowing the optical modulation index (OMI) via the rear photodetector. Thus, by measuring and/or calibrating the laser OMI with the use of a rear photodetector, the average output power from the front end output can be unambiguously determined from detection of the AC peak-to-peak swing or amplitude of the low frequency tone received via the front photodetector.

    摘要翻译: 对激光器或激光器组的期望功率电平的功率监视和校正使用两个光电检测器,其用于准确地确定来自激光器或多个这样的激光器的前端或“客户”端的输出功率的量。 在功率检测期间,可以间歇地或连续地实现,用低频调制调制激光。 采用激光后部的一个光电检测器来检测频率音调的DC值,即代表音调的AC峰 - 峰波动,幅度或调制深度的值或数字。 而且,后方光电检测器可用于确定光调制指数(OMI)。 在这两种情况下,这些值可以用在闭环反馈系统中,以相对于施加到激光器的总期望偏置电流来调节或以其他方式校准低音频率的值。 使用前光电检测器来接收激光器或每个激光器的总输出的一部分,并且通过已经知道光调制指数(OMI)来确定激光器或每个激光器的平均输出功率 后置光电检测器。 因此,通过使用后部光电检测器测量和/或校准激光OMI,可以从检测到AC峰 - 峰摆动或低频音调的幅度来明确地确定来自前端输出的平均输出功率 通过前光电检测器接收。

    PRODUCTION CENTER SYSTEM
    4.
    发明申请
    PRODUCTION CENTER SYSTEM 审中-公开
    生产中心系统

    公开(公告)号:US20090006170A1

    公开(公告)日:2009-01-01

    申请号:US11768513

    申请日:2007-06-26

    申请人: Robert W. Smith

    发明人: Robert W. Smith

    IPC分类号: G06Q10/00

    CPC分类号: G06Q10/06 G06Q10/0631

    摘要: Systems and methods of centralized product production, comprising a job initiation component that receives a job request from a user; a resource management component that delegates tasks to one or more modules to produce a product to meet the job request. The modules can comprise an automated computing system or a practice group, and can report back to the resource management component. An assembly component can receive information, documents, and objects from the resource management component and assemble the items to form a product. An interface component allows a user to view progress of the product, and to receive status updates.

    摘要翻译: 集中产品生产的系统和方法,包括从用户接收作业请求的作业发起组件; 一个资源管理组件,用于将任务委托给一个或多个模块来生产产品以满足作业请求。 模块可以包括自动计算系统或练习组,并且可以向资源管理组件报告。 组装组件可以从资源管理组件接收信息,文档和对象,并组合项目以形成产品。 接口组件允许用户查看产品的进度并接收状态更新。

    Bias control system for electrooptic devices
    5.
    发明授权
    Bias control system for electrooptic devices 有权
    电光设备偏压控制系统

    公开(公告)号:US06222965B1

    公开(公告)日:2001-04-24

    申请号:US09349736

    申请日:1999-07-08

    申请人: Robert W. Smith

    发明人: Robert W. Smith

    IPC分类号: G02B626

    摘要: An optical device includes a substrate formed of an electrooptic material, a waveguide formed in the substrate, an electrically conductive film formed over at least a portion of the waveguide and a source of DC voltage electrically connected to the film for thermally inducing a change in the optical refractive index of the substrate of the optical device.

    摘要翻译: 光学装置包括由电光材料形成的基板,形成在基板中的波导,形成在波导的至少一部分上的导电膜和电连接到膜的DC电压源,用于热引起 光学器件的基板的光学折射率。

    Apparatus and method for monitoring the presence of cables connected to
ports of a computer network controller and automatically reconfiguring
the network when cables are connected to or removed from the controller
    6.
    发明授权
    Apparatus and method for monitoring the presence of cables connected to ports of a computer network controller and automatically reconfiguring the network when cables are connected to or removed from the controller 失效
    用于监测连接到计算机网络控制器的端口的电缆的存在的装置和方法,并且当电缆连接到控制器或从控制器移除时自动重新配置网络

    公开(公告)号:US5493650A

    公开(公告)日:1996-02-20

    申请号:US205181

    申请日:1994-03-02

    IPC分类号: H04L12/26 G06F13/36

    CPC分类号: H04L41/0809

    摘要: An apparatus for monitoring whether a cable is coupled to a port of a computer network. A free-running oscillator is initially set to a base frequency when a cable is not coupled to the port. If a cable is subsequently coupled to that port, the inherent capacitance of that cable loads one of the nodes associated with the oscillator. The result of this capacitance is that the oscillator is now running at a lower frequency. A frequency counter and threshold comparator are used to detect whether the oscillator frequency has fallen below a pre-determined frequency threshold. If the oscillator frequency has not fallen below this threshold, the port is not included in the network path. However, if the oscillator frequency has fallen below the threshold, this indicates that a cable has been coupled to the port. Consequently, the trunk port is inserted into the computer network's path.

    摘要翻译: 一种用于监测电缆是否耦合到计算机网络的端口的装置。 当电缆未连接到端口时,自由振荡器最初设置为基频。 如果电缆随后耦合到该端口,则该电缆的固有电容加载与振荡器相关联的节点之一。 该电容的结果是振荡器现在以较低的频率运行。 使用频率计数器和阈值比较器来检测振荡器频率是否已经低于预定的频率阈值。 如果振荡器频率没有下降到该阈值以下,则该端口不包括在网络路径中。 但是,如果振荡器频率低于阈值,则表示电缆已经连接到端口。 因此,中继端口插入到计算机网络的路径中。

    Staged, coaxial, multiple point fuel injection in a hot gas generator
having a sufficiently wide cone angle
    7.
    发明授权
    Staged, coaxial, multiple point fuel injection in a hot gas generator having a sufficiently wide cone angle 失效
    在具有足够宽的锥角的热气体发生器中的分段,同轴,多点燃料喷射

    公开(公告)号:US5307636A

    公开(公告)日:1994-05-03

    申请号:US820033

    申请日:1992-01-10

    CPC分类号: F23M5/08 F02K9/64 F23M5/00

    摘要: A hot gas generator includes a dual fuel injector (42) having spaced fuel discharge nozzles (48, 60) on the longitudinal axis (28) of a vessel (18) having a narrow inlet (22), an opposite narrow outlet (14) and an intermediate, enlarged chamber (24) which serves as a combustion chamber. The nozzle (60) injects a spray cone (64) of fuel in a cone angle that is sufficiently wide that a large angle exists between the fuel spray and the path (54) of high velocity combustion gases moving toward the outlet (14) to achieve excellent vaporization of fuel at fuel rich conditions without causing carbon buildup and/or the generation of black smoke in the exhaust.

    摘要翻译: 热气体发生器包括双燃料喷射器(42),其具有在容器(18)的纵向轴线(28)上具有间隔开的燃料排放喷嘴(48,60),该容器具有窄的入口(22),相对的窄出口(14) 以及用作燃烧室的中间扩大室(24)。 喷嘴(60)以足够宽的锥角喷射燃料喷射锥体(64),使得在燃料喷雾与朝向出口(14)移动的高速燃烧气体的路径(54)之间存在较大的角度,以至 在燃料丰富的条件下实现燃料的极好蒸发,而不会引起排气中的碳积累和/或产生黑烟。

    Gas fired heat exchanger for hot water with bimetallic scouring baffle
    8.
    发明授权
    Gas fired heat exchanger for hot water with bimetallic scouring baffle 失效
    燃气热交换器用于双金属冲刷挡板的热水

    公开(公告)号:US4671212A

    公开(公告)日:1987-06-09

    申请号:US842216

    申请日:1986-03-21

    申请人: Robert W. Smith

    发明人: Robert W. Smith

    摘要: A gas fired hot water heater includes a housing enclosing an internal chamber divided by a vertical partition into two compartments, the partition having a top edge spaced below the top of the chamber. One of the compartments has a gas burner in the lower portion with an adjacent combustion air intake vent. A first heat exchanger is located in the same compartment above the gas burner but below the top edge of the partition, and a second heat exchanger is located in the other compartment at substantially the same horizontal level as the first. The two heat exchangers are connected in series. Condensate collection means is provided in the other compartment below the second heat exchanger to collect condensate forming on the second heat exchanger and to duct the condensate out of the housing. A flue pipe ducts flue gases from the housing, and a blower is provided to blow the flue gases through the flue pipe. In a particular development, a bimetallic, helically twisted baffle is provided within the straight portions of the central heat exchanger tube, so that temperature swings will cause the bimetallic baffle to expand and contract, thus automatically scouring the internal surface of the tubes, and reducing deposits.

    摘要翻译: 一种燃气热水器包括壳体,其包围由垂直隔板分隔成两个室的内部腔室,所述隔板具有在所述腔室顶部间隔开的顶部边缘。 隔室中的一个在下部具有气体燃烧器,具有相邻的燃烧空气进气口。 第一热交换器位于气体燃烧器上方相同的隔室中,但位于隔板的顶部边缘下方,并且第二热交换器位于与第一热交换器基本相同的水平位置上。 两个热交换器串联连接。 冷凝收集装置设置在第二热交换器下方的另一个隔室中,以收集在第二热交换器上形成的冷凝物并将冷凝物导出外壳。 烟道管道从壳体排出烟气,并且提供鼓风机以吹送烟气通过烟道。 在具体的开发中,在中央热交换器管的直线部分内设置双金属螺旋扭曲的挡板,使得温度摆动将导致双金属挡板膨胀和收缩,从而自动冲洗管的内表面,并且减少 存款

    Natural gas adaptor system for automobiles
    9.
    发明授权
    Natural gas adaptor system for automobiles 失效
    汽车天然气适配器系统

    公开(公告)号:US4531497A

    公开(公告)日:1985-07-30

    申请号:US492708

    申请日:1982-05-09

    申请人: Robert W. Smith

    发明人: Robert W. Smith

    IPC分类号: F02B43/00 F02M13/08 F02M21/02

    摘要: There is provided a natural gas charging system for a vehicle which has an internal combustion engine adapted to run on gasoline or on natural gas, as well as a gasoline tank adapted to feed gasoline through a carburetor to the engine. The gas charging system includes storage means such as tanks which are adapted to store natural gas under a given storage pressure, and delivery means through which natural gas can be delivered from the storage means through an air-mixing means to the carburetor of the vehicle. A compressor is adapted to receive low-pressure natural gas and to compress it up to the storage pressure, and the engine is made to drive the compressor through drive means. Conduit means are provided from the output of the compressor to the storage means.

    摘要翻译: 提供了一种用于车辆的天然气充气系统,其具有适于在汽油或天然气上运行的内燃机,以及适于将汽油通过化油器供给到发动机的汽油罐。 气体充气系统包括适于在给定存储压力下储存天然气的储存装置,以及可以通过空气混合装置将天然气从储存装置输送到车辆的化油器的输送装置。 压缩机适于接收低压天然气并将其压缩至储存压力,并且使发动机通过驱动装置驱动压缩机。 从压缩机的输出到存储装置提供管道装置。

    Method of making fiber glass parts with stud supports
    10.
    发明授权
    Method of making fiber glass parts with stud supports 失效
    制造具有螺柱支撑的玻璃纤维部件的方法

    公开(公告)号:US4088525A

    公开(公告)日:1978-05-09

    申请号:US713757

    申请日:1976-08-12

    IPC分类号: B29D3/02 B29C5/00

    CPC分类号: B29C70/28

    摘要: In the manufacture of a glass fiber reinforced plastic part a chopped glass fiber reinforced, thermosetting resin is placed in a mold cavity. A continuous filament glass fiber cylinder impregnated with the same resin used in the above formulation without chopped glass fiber is placed in the stud support areas of the mold. The mold is then closed and the resin subjected to heat and pressure to cause it to completely fill the mold cavity and cure. The cured part has continuous filament glass fiber reinforcements in the stud support areas.

    摘要翻译: 在玻璃纤维增​​强塑料部件的制造中,将短切玻璃纤维增​​强的热固性树脂放置在模腔中。 将不用切碎玻璃纤维的上述配方中使用的相同树脂浸渍的连续长丝玻璃纤维圆筒放置在模具的螺柱支撑区域中。 然后关闭模具,并使树脂经受热和压力使其完全填充模腔并固化。 固化部分在螺柱支撑区域中具有连续的长丝玻璃纤维增​​强件。