公开(公告)号：US20130065557A1

公开(公告)日：2013-03-14

申请号：US13613698

申请日：2012-09-13

申请人： David Xining Zhang ,  Huiyue Xu ,  Xiaohua Yuan

发明人： David Xining Zhang ,  Huiyue Xu ,  Xiaohua Yuan

IPC分类号： H04W12/06

CPC分类号： H04L63/0853 ,  H04L63/0272 ,  H04L63/0884 ,  H04W12/04 ,  H04W12/06

摘要： A method and apparatus provide access to communication services using dynamically assigned user credentials. The method includes establishing a communication connection with a first communication network (such as GSM, UMTS, CDMA, or LTE networks) using a real user credential (e.g., a SIM, a USIM, or an R-UIM card or certificates) in a first communication module, utilizing the first communication connection to request the dynamically assigned user credential from a remote management system, and registering a second communication module into the second communication network. The second communication connection is then tethered to allow other devices to access the Internet or other network.

公开(公告)号：US20120308419A1

公开(公告)日：2012-12-06

申请号：US13572410

申请日：2012-08-10

申请人： Xiaohua YUAN

发明人： Xiaohua YUAN

IPC分类号： F04B7/04

CPC分类号： F04B53/148 ,  F04B53/12 ,  F04B53/14

摘要： An improvement to raise the efficiency of a reciprocating refrigeration compressor, the improvement comprising a channel in the piston that transfers pressure from the clearance volume of the cylinder to the low pressure side of the piston when an opening of the channel aligns with a groove or a duct in the cylinder wall. The channel comprises a ball extending from and held to the clearance volume opening of the channel by a spring. When the spring is compressed, the ball is moved from the opening, and pressure in the clearance volume is transferred to the low pressure side of the piston.

摘要翻译： 提高往复式制冷压缩机的效率的改进，改进包括活塞中的通道，当通道的开口与凹槽对准时将压力从气缸的间隙容积传递到活塞的低压侧 管壁在气缸壁上。 通道包括通过弹簧从通道的间隙容积开口延伸并保持在其中的球。 当弹簧被压缩时，球从开口移动，间隙体积中的压力被传递到活塞的低压侧。

公开(公告)号：US20110182759A1

公开(公告)日：2011-07-28

申请号：US12727907

申请日：2010-03-19

申请人： Xiaohua Yuan

发明人： Xiaohua Yuan

IPC分类号： F04B39/10

CPC分类号： F04B53/148 ,  F04B53/12 ,  F04B53/14

摘要： An improvement to raise the efficiency of a reciprocating air compressor, the improvement comprising a channel in the piston that transfers pressure from the clearance volume of the cylinder to the low pressure side of the piston when an opening of the channel aligns with a groove in the cylinder wall. Alternately, the channel comprises a ball extending from and held to the clearance volume opening of the channel by a spring. When the spring is compressed, the ball is moved from the opening, and pressure in the clearance volume is transferred to the low pressure side of the piston. The improvement dramatically raises the efficiency of a reciprocating air compressor.

摘要翻译： 提高往复式空气压缩机的效率的改进，改进包括活塞中的通道，当通道的开口与槽中的凹槽对准时，将压力从气缸的间隙容积传递到活塞的低压侧 气缸壁。 或者，通道包括通过弹簧从通道的间隙容积开口延伸并保持在通道的间隙容积开口中的球。 当弹簧被压缩时，球从开口移动，间隙体积中的压力被传递到活塞的低压侧。 这种改进显着提高了往复式空气压缩机的效率。

公开(公告)号：US08838070B2

公开(公告)日：2014-09-16

申请号：US13613698

申请日：2012-09-13

申请人： David Xining Zhang ,  Huiyue Xu ,  Xiaohua Yuan

发明人： David Xining Zhang ,  Huiyue Xu ,  Xiaohua Yuan

IPC分类号： H04M1/66 ,  H04L29/06 ,  H04W12/06

CPC分类号： H04L63/0853 ,  H04L63/0272 ,  H04L63/0884 ,  H04W12/04 ,  H04W12/06

摘要： A method and apparatus provide access to communication services using dynamically assigned user credentials. The method includes establishing a communication connection with a first communication network (such as GSM, UMTS, CDMA, or LTE networks) using a real user credential (e.g., a SIM, a USIM, or an R-UIM card or certificates) in a first communication module, utilizing the first communication connection to request the dynamically assigned user credential from a remote management system, and registering a second communication module into the second communication network. The second communication connection is then tethered to allow other devices to access the Internet or other network.

摘要翻译： 方法和装置使用动态分配的用户凭证提供对通信服务的访问。 该方法包括使用真实的用户凭证（例如，SIM，USIM或R-UIM卡或证书）来建立与第一通信网络（例如GSM，UMTS，CDMA或LTE网络）的通信连接 第一通信模块，利用第一通信连接从远程管理系统请求动态分配的用户凭证，以及将第二通信模块注册到第二通信网络中。 然后第二通信连接被连接以允许其他设备访问因特网或其他网络。

公开(公告)号：US20110182758A1

公开(公告)日：2011-07-28

申请号：US12703506

申请日：2010-02-10

申请人： Xiaohua Yuan

发明人： Xiaohua Yuan

IPC分类号： F04B53/12 ,  F04B39/10

CPC分类号： F04B53/148 ,  F04B53/12 ,  F04B53/14

摘要： An improvement to raise the efficiency of a reciprocating refrigeration compressor, the improvement comprising a channel in the piston that transfers pressure from the clearance volume of the cylinder to the low pressure side of the piston when an opening of the channel aligns with a groove or a duct in the cylinder wall. Alternately, the channel comprises a ball extending from and held to the clearance volume opening of the channel by a spring. When the spring is compressed, the ball is moved from the opening, and pressure in the clearance volume is transferred to the low pressure side of the piston.

摘要翻译： 提高往复式制冷压缩机的效率的改进，改进包括活塞中的通道，当通道的开口与凹槽对准时将压力从气缸的间隙容积传递到活塞的低压侧 管壁在气缸壁上。 或者，通道包括通过弹簧从通道的间隙容积开口延伸并保持在通道的间隙容积开口中的球。 当弹簧被压缩时，球从开口移动，间隙体积中的压力被传递到活塞的低压侧。