Packaging for planar lightwave circuits
    1.
    发明授权
    Packaging for planar lightwave circuits 失效
    平面光波电路的封装

    公开(公告)号:US07187818B2

    公开(公告)日:2007-03-06

    申请号:US11034818

    申请日:2005-01-14

    IPC分类号: G02B6/12

    CPC分类号: G02B6/1203 G02B6/12

    摘要: A planar lightwave circuit device includes one or more planar lightwave circuits (PLCs) each having an optical layer deposited on a substrate, and a package base including one or more support structures for suspending the planar lightwave circuit above a portion of the package base. Each substrate has a first coefficient of thermal expansion, whereas the package base has a second coefficient of thermal expansion. The first and second coefficients of thermal expansion differ such that a change in temperature causes the support to apply one of a compressive and a tensile force to the planar lightwave circuit in a plane within or parallel to the plane of the planar lightwave circuit. The induced stress can modify the optical performance of the PLC device, e.g. to reduce the temperature sensitivity of the device and thus maintain device performance, or for providing efficient passive or dynamic tuning of the device.

    摘要翻译: 平面光波电路装置包括一个或多个平面光波回路(PLC),每个平面光波电路都具有沉积在基板上的光学层,以及包括一个或多个用于将平面光波电路悬挂在封装基座的一部分上方的支撑结构的封装基座。 每个基板具有第一热膨胀系数,而封装基座具有第二热膨胀系数。 第一和第二热膨胀系数不同,使得温度的变化使得支撑件在平面光波电路中的平面光波电路中的平面光波电路的平面内或平行的平面中施加压缩和拉伸力中的一种。 感应应力可以改变PLC设备的光学性能,例如。 以降低设备的温度敏感度,从而保持设备性能,或者为设备提供有效的被动或动态调谐。

    Mailbox with an extended downward sloping chute

    公开(公告)号:US11141014B2

    公开(公告)日:2021-10-12

    申请号:US16683548

    申请日:2019-11-14

    申请人: Robert James

    发明人: Robert James

    摘要: The present invention relates to a mailbox. The mailbox includes an extended downward sloping chute into and through which mail and packages destined for the mailbox's owner can be deposited. The length and orientation of the downward sloping chute makes it difficult if not impossible for the mailbox contents to be accessed and removed through the downward sloping chute. A locked door in the main portion of the box is provided to allow controlled and authorized access to the box's contents.

    Safety Data Writes
    4.
    发明申请
    Safety Data Writes 有权
    安全数据写入

    公开(公告)号:US20080005552A1

    公开(公告)日:2008-01-03

    申请号:US11761542

    申请日:2007-06-12

    IPC分类号: G06F15/177

    摘要: Systems and methods for safety data writes for process control networks are disclosed. The system may load changed parameters into a function block implemented by a process control server. The loaded changed parameters may be verified as being within safe limits and correctly entered. The verified changed parameters may be loaded into the field device controllers and the system restarted using the loaded changed parameters. The system may load parameters with an online system and use the loaded changed parameters during a warm restart.

    摘要翻译: 公开了用于过程控制网络的安全数据写入的系统和方法。 系统可以将改变的参数加载到由过程控制服务器实现的功能块中。 加载的更改的参数可以被验证为在安全限制内并正确输入。 验证的更改的参数可能会加载到现场设备控制器中,并且使用加载的已更改参数重新启动系统。 系统可以使用在线系统加载参数,并在热启动期间使用加载的更改的参数。

    Integrated oxygenate conversion and product cracking
    6.
    发明申请
    Integrated oxygenate conversion and product cracking 有权
    综合含氧化合物转化和产物开裂

    公开(公告)号:US20070129588A1

    公开(公告)日:2007-06-07

    申请号:US11293934

    申请日:2005-12-05

    IPC分类号: C07C1/00 B01J8/02 B01J8/08

    摘要: Improved processing of an oxygenate-containing feedstock for increased production or yield of light olefins. Such processing involves oxygenate conversion to olefins and subsequent cracking of heavier olefins wherein at least a portion of the products from each of the reactors is elevated in pressure, using a common compressor, prior to being routed to a common product fractionation and recovery section. In one particular embodiment, the cracked product gas can be treated to remove acid gas therefrom. In another embodiment, the olefin cracking reactor is a moving bed reactor.

    摘要翻译: 改进含氧化合物原料的加工,以提高轻质烯烃的生产或产率。 这种处理涉及含氧化合物转化为烯烃并随后开裂较重的烯烃,其中使用普通的压缩机将来自每个反应器的产物的至少一部分在压力下升高,然后被送至共同的产物分馏和回收段。 在一个具体实施方案中,可以处理裂化产物气体以从其中除去酸性气体。 在另一个实施方案中,烯烃裂解反应器是移动床反应器。

    Aromatics transalkylation to ethylbenzene and xylenes

    公开(公告)号:US20050215839A1

    公开(公告)日:2005-09-29

    申请号:US11137291

    申请日:2005-05-25

    IPC分类号: C07C5/22 C07C5/27 C07C6/12

    摘要: The use of transalkylation catalysts to react heavy aromatic compounds of carbon number nine (and heavier carbon numbers) with benzene to form carbon number eight aromatics is disclosed. The catalyst system preserves ethyl-group species on the heavier aromatics that are otherwise de-ethylated over most gas-phase transalkylation catalysts to form undesired ethane gas with benzene or toluene. The catalyst system also promotes methyl-group species transalkylation at selected conditions. Thus, by using the transalkylation system, a greater yield of para-xylene or other carbon number eight aromatics may be achieved overall within an integrated aromatics complex.

    Underwater alpha-numeric communication system
    8.
    发明授权
    Underwater alpha-numeric communication system 失效
    水下字母数字通信系统

    公开(公告)号:US5592156A

    公开(公告)日:1997-01-07

    申请号:US539618

    申请日:1995-10-05

    申请人: Robert James

    发明人: Robert James

    IPC分类号: H04B13/02 H04B11/00

    CPC分类号: H04B13/02

    摘要: A bi-directional underwater communication system provides a submerged operator the ability to communicate with a surface operator. Provides two transceivers both containing keypads and displays capable of transmitting and receiving alpha-numeric data. The underwater transceiver is connected to a floating antenna assembly via a small cable.

    摘要翻译: 双向水下通信系统为浸没式操作员提供与地面操作者通信的能力。 提供两个收发器,其中包含能够发送和接收字母数字数据的键盘和显示器。 水下收发器通过小电缆连接到浮动天线组件。

    Flame failure devices
    9.
    发明授权
    Flame failure devices 失效
    火焰故障装置

    公开(公告)号:US4832070A

    公开(公告)日:1989-05-23

    申请号:US151840

    申请日:1988-02-03

    IPC分类号: F16K31/68 F23N5/06

    摘要: The invention provides a flame failure device in which the reservoir exposed to the flame is charged with air and is communicated via a capillary tube to displace a membrane and hold the main valve in an open position, and the valve is closed by a spring when pressure falls as a result of the flame being extinguished. The system is re-charged via a one-way valve when pressure in the system falls below ambient pressure.

    Synchro/resolver shaft angle converter apparatus
    10.
    发明授权
    Synchro/resolver shaft angle converter apparatus 失效
    同步/旋转变压器轴角转换装置

    公开(公告)号:US4703307A

    公开(公告)日:1987-10-27

    申请号:US826403

    申请日:1986-02-05

    IPC分类号: G06J1/00 H03M1/64

    CPC分类号: G06J1/00

    摘要: Apparatus is disclosed which is controlled via computer interface logic for converting digital signals corresponding to predetermined synchro/resolver shaft angles into analog signals for stimulus purposes, and for converting the analog signals into digital words for measurement purposes. External synchro/resolver shaft angle signals may be converted into digital words for like purposes. The apparatus has a plurality of converter channels, each of which is controlled by the computer interface logic for operation independent of the other channels. The apparatus so configured is particularly adaptable for providing stimuli and measurements which are useful in test systems applications.

    摘要翻译: 公开了通过计算机接口逻辑控制的装置,用于将对应于预定同步/解析器轴角度的数字信号转换为用于刺激目的的模拟信号,并且用于将模拟信号转换为数字字以用于测量目的。 外部同步/分解器轴角度信号可以转换为数字字,用于相同目的。 该装置具有多个转换器通道,每个转换器通道由计算机接口逻辑控制,用于独立于其他通道的操作。 如此构造的装置特别适用于提供在测试系统应用中有用的刺激和测量。