公开(公告)号：US20090266903A1

公开(公告)日：2009-10-29

申请号：US12431219

申请日：2009-04-28

申请人： Sean J. Fitzgerald ,  John C. Farrar ,  Robert F. Keimer ,  David L. Huie ,  Allen N. Williams ,  Matthew S. Ikemeier ,  Brendan T. Fitzgerald

发明人： Sean J. Fitzgerald ,  John C. Farrar ,  Robert F. Keimer ,  David L. Huie ,  Allen N. Williams ,  Matthew S. Ikemeier ,  Brendan T. Fitzgerald

IPC分类号： F24F13/10

CPC分类号： F24F11/0012 ,  F16K1/24 ,  F24F11/30 ,  F24F11/74 ,  F24F13/10 ,  F24F13/105 ,  F24F13/12 ,  F24F2110/10 ,  F24F2120/10 ,  Y10T137/87442 ,  Y10T137/87458

摘要： A damper for controlling fluid flow includes a main body, a stator and a rotor. The stator may be carried by the main body and include at least one blade having a predetermined shape. The rotor may be moveably connected to the stator and carried by the main body. The rotor may include at least one blade having a predetermined shape and may be moveable between an opened position and a closed position. The predetermined shape of the at least one stator blade and the at least one rotor blade may form a converging-diverging nozzle, and the stator and the rotor may be carried by the main body so that fluid flows through the main body substantially perpendicular thereto. The opened position may be defined as the at least one stator blade being aligned with the at least one rotor blade, and the closed position may be defined as the at least one stator blade being offset from the at least one rotor blade.

摘要翻译： 用于控制流体流动的阻尼器包括主体，定子和转子。 定子可以由主体承载并且包括具有预定形状的至少一个叶片。 转子可以可动地连接到定子并由主体承载。 转子可以包括具有预定形状的至少一个叶片，并且可以在打开位置和关闭位置之间移动。 所述至少一个定子叶片和所述至少一个转子叶片的预定形状可以形成会聚发散喷嘴，并且所述定子和所述转子可以由所述主体承载，使得流体基本上垂直于其流过所述主体。 打开位置可以被定义为至少一个定子叶片与至少一个转子叶片对准，并且关闭位置可以被限定为至少一个定子叶片与至少一个转子叶片偏移。

公开(公告)号：US5640442A

公开(公告)日：1997-06-17

申请号：US719307

申请日：1996-09-24

申请人： Brendan T. Fitzgerald ,  Andrew T. Powshok ,  Donald K. Belcher ,  Jeffrey R. White ,  Albert D. Darby, Jr. ,  Rodney Nelson

发明人： Brendan T. Fitzgerald ,  Andrew T. Powshok ,  Donald K. Belcher ,  Jeffrey R. White ,  Albert D. Darby, Jr. ,  Rodney Nelson

IPC分类号： H04W72/06 ,  H04W84/02 ,  H04Q7/08

CPC分类号： H04W72/085 ,  H04W84/022

摘要： A two-way communications system that provides ubiquitous wireless data communication services, such as throughout the continental United States, by using a network of only a few, widely distributed radio base station (RBS) sites and the existing paging network infrastructure. The paging network infrastructure is used as an outbound link to request data from the remote field units. The outbound page message indicates a time and HF frequency at which the RBSs can expect to receive inbound data from the field units. A network hub or mission operation center (MOC) determines a radio frequency which is expected to be propagating and clear at the time that a particular field unit is to use the frequency as an inbound link. The MOC then issues the request for data to the field unit using an existing inexpensive wireless system such as the paging network infrastructure. The field units make use of paging receivers, and an HF transmitter to report remote data such as a geoposition or other sensor data when requested to do so.

摘要翻译： 通过使用只有少数广泛分布的无线电基站（RBS）站点和现有寻呼网络基础设施的网络，提供普遍存在的无线数据通信服务的双向通信系统，例如遍及美国大陆的无线数据通信服务。 寻呼网络基础设施用作出站链路以从远程现场单元请求数据。 出站页面消息指示RBS可以期望从现场单元接收入站数据的时间和HF频率。 网络集线器或任务操作中心（MOC）确定在特定现场单元将频率用作入站链路时期望传播和清除的射频。 然后，MOC使用诸如寻呼网络基础设施的现有廉价无线系统向现场单元发出数据请求。 现场单元利用寻呼接收机和HF发射机在请求时报告诸如地理位置或其它传感器数据的远程数据。

公开(公告)号：US5765112A

公开(公告)日：1998-06-09

申请号：US468004

申请日：1995-06-06

申请人： Brendan T. Fitzgerald ,  Andrew T. Powshok ,  Donald K. Belcher ,  Jeffrey R. White ,  Albert D. Darby, Jr. ,  Rodney Nelson

发明人： Brendan T. Fitzgerald ,  Andrew T. Powshok ,  Donald K. Belcher ,  Jeffrey R. White ,  Albert D. Darby, Jr. ,  Rodney Nelson

IPC分类号： H04W84/02 ,  H04B7/00

CPC分类号： H04W84/022

摘要： A two-way communications system that provides ubiquitous wireless data communication services, such as throughout the continental United States, by using a network of only a few, widely distributed radio base station (RBS) sites and the existing paging network infrastructure. The paging network infrastructure is used as an outbound link to request data from the remote field units. The outbound page message indicates a time and frequency at which the RBSs can expect to receive data from the field units. A network hub or message operations center (MOC) coordinates the operation of the paging systems and RBSs from a central location. For example, the MOC determines an available HF frequency and time for a particular field unit to transmit, and then issues the request for data to the field unit using the existing paging network infrastructure. The field units make use of paging receivers, and an HF transmitter to report remote data such as a geoposition or other sensor data when requested to do so.

摘要翻译： 通过使用只有少数广泛分布的无线电基站（RBS）站点和现有寻呼网络基础设施的网络，提供普遍存在的无线数据通信服务的双向通信系统，例如遍布美国大陆的无线数据通信服务。 寻呼网络基础设施用作出站链路以从远程现场单元请求数据。 出站页面消息指示RBS可以期望从现场单元接收数据的时间和频率。 网络集线器或消息操作中心（MOC）协调来自中心位置的寻呼系统和RBS的操作。 例如，MOC确定特定现场单元发送的可用HF频率和时间，然后使用现有的寻呼网络基础设施向现场单元发出对数据的请求。 现场单元利用寻呼接收机和HF发射机在请求时报告诸如地理位置或其他传感器数据的远程数据。

公开(公告)号：US08636567B2

公开(公告)日：2014-01-28

申请号：US12431219

申请日：2009-04-28

申请人： Sean J. Fitzgerald ,  John C. Farrar ,  Robert F. Keimer ,  David L. Huie ,  Allen N. Williams ,  Matthew S. Ikemeier ,  Brendan T. Fitzgerald

发明人： Sean J. Fitzgerald ,  John C. Farrar ,  Robert F. Keimer ,  David L. Huie ,  Allen N. Williams ,  Matthew S. Ikemeier ,  Brendan T. Fitzgerald

IPC分类号： F24F13/12 ,  F24F11/04 ,  F16K1/24

CPC分类号： F24F11/0012 ,  F16K1/24 ,  F24F11/30 ,  F24F11/74 ,  F24F13/10 ,  F24F13/105 ,  F24F13/12 ,  F24F2110/10 ,  F24F2120/10 ,  Y10T137/87442 ,  Y10T137/87458

摘要： A damper for controlling fluid flow includes a main body, a stator and a rotor. The stator may be carried by the main body and include at least one blade having a predetermined shape. The rotor may be moveably connected to the stator and carried by the main body. The rotor may include at least one blade having a predetermined shape and may be moveable between an opened position and a closed position. The predetermined shape of the at least one stator blade and the at least one rotor blade may form a converging-diverging nozzle, and the stator and the rotor may be carried by the main body so that fluid flows through the main body substantially perpendicular thereto. The opened position may be defined as the at least one stator blade being aligned with the at least one rotor blade, and the closed position may be defined as the at least one stator blade being offset from the at least one rotor blade.

摘要翻译： 用于控制流体流动的阻尼器包括主体，定子和转子。 定子可以由主体承载并且包括具有预定形状的至少一个叶片。 转子可以可动地连接到定子并由主体承载。 转子可以包括具有预定形状的至少一个叶片，并且可以在打开位置和关闭位置之间移动。 所述至少一个定子叶片和所述至少一个转子叶片的预定形状可以形成会聚发散喷嘴，并且所述定子和所述转子可以由所述主体承载，使得流体基本上垂直于其流过所述主体。 打开位置可以被定义为至少一个定子叶片与至少一个转子叶片对准，并且关闭位置可以被限定为至少一个定子叶片与至少一个转子叶片偏移。

公开(公告)号：US5734963A

公开(公告)日：1998-03-31

申请号：US471980

申请日：1995-06-06

申请人： Brendan T. Fitzgerald ,  Andrew T. Powshok ,  Donald K. Belcher ,  Jeffrey R. White ,  Albert D. Darby, Jr. ,  Rodney Nelson

发明人： Brendan T. Fitzgerald ,  Andrew T. Powshok ,  Donald K. Belcher ,  Jeffrey R. White ,  Albert D. Darby, Jr. ,  Rodney Nelson

IPC分类号： H04L12/56 ,  H04W4/12 ,  H04W16/14 ,  H04W68/00 ,  H04W74/04 ,  H04W74/06 ,  H04Q7/20

CPC分类号： H04W74/06 ,  H04W4/12 ,  H04W48/10 ,  H04W84/022

摘要： A two-way communications system provides ubiquitous wireless data communication services, such as throughout the continental United States, by using a network of only a few, widely distributed radio base station (RBS) sites and the existing paging network infrastructure. A network hub or mission operation center (MOC) coordinates the operation of the paging systems and RBSs from a central location. The paging network infrastructure is used as an outbound link over which each of the field units is regularly provided with a outbound data message containing information on the available frequencies and time slots the field units can use to transmit inbound data messages to the RBSs. If any of the field units desires to transmit data to MOC, the field unit selects an available frequency from the outbound data message, and transmits its data at the selected available frequency and time. At least one of the RBSs will receive the inbound message and route it to the MOC which then sends an outbound acknowledgment message, via the paging network, to the field unit which sent the inbound message.

摘要翻译： 双向通信系统通过仅使用几个广泛分布的无线电基站（RBS）站点和现有的寻呼网络基础设施的网络来提供无处不在的无线数据通信服务，例如遍布美国大陆的无线数据通信服务。 网络中心或任务操作中心（MOC）协调来自中心位置的寻呼系统和RBS的操作。 寻呼网络基础设施用作出站链路，每个现场单元定期地提供出站数据消息，该出站数据消息包含关于现场单元可用于向RBS发送入站数据消息的可用频率和时隙的信息。 如果任何现场单元希望向MOC发送数据，则现场单元从出站数据消息中选择可用频率，并以所选择的可用频率和时间发送其数据。 至少一个RBS将接收入站消息并将其路由到MOC，然后MOC通过寻呼网络向发送入站消息的现场单元发送出站确认消息。