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公开(公告)号：US5413765A
公开(公告)日：1995-05-09
申请号：US230230
申请日：1994-04-20
IPC分类号： A62D3/00 , A62D3/38 , A62D101/20 , A62D101/47 , B01D21/00 , B01D53/18 , B01D53/52 , B01D53/74 , B01D53/78 , B01F3/04 , B01F7/00 , B01J10/00 , B03D1/02 , B03D1/16 , C01B17/05 , C02F1/24 , C02F1/72 , C02F1/78 , C02F3/20 , B01F5/06 , B01F13/02
CPC分类号： A62D3/38 , B01D21/2427 , B01D21/2433 , B01D21/2494 , B01D21/26 , B01D53/18 , B01D53/52 , B01D53/74 , B01D53/78 , B01F3/04539 , B01F3/04609 , B01F3/04617 , B01F3/04836 , B03D1/02 , B03D1/1462 , B03D1/16 , C01B17/05 , C02F3/205 , A62D2101/20 , A62D2101/47 , A62D2203/10 , B01F2003/04553 , B01F2003/0468 , B01F7/00291 , C02F1/725 , C02F1/78 , Y02W10/15
摘要： Components, usually but not exclusively gaseous components, are removed in a liquid medium from gas streams and chemically converted into an insoluble phase or physically removed. Specifically, hydrogen sulfide may be removed from gas streams by oxidation in aqueous chelated transition metal solution in a modified agitated flotation cell. The same principle may be employed with other procedures in which a gaseous phase is dispersed in a liquid phase to effect an interaction between components present in such phases. A gas-liquid contact apparatus, generally a combined chemical reactor and solid product separation device, comprising such modified agitated flotation cell also is described. In order to effect efficient mass transfer and rapid reaction, gas bubbles containing hydrogen sulfide and oxygen are formed by rotating an impeller at a blade tip velocity of at least about 350 in/sec. to achieve the required shear. To assist in the reaction, a surrounding shroud has a plurality of openings, generally of aspect ratio of approximately 1, of equal diameter and arranged in uniform pattern, such as to provide a gas flow therethrough less than about 0.02 lb/min/opening in the shroud. In general, the gas velocity index of gas through the openings in the shroud is at least about 18 per second per opening, preferably at least about 24 per second per opening. Each of the openings has an area corresponding to an equivalent diameter less than about one inch.
摘要翻译： 组分通常但不排他气体组分在液体介质中从气流中除去并化学转化为不溶相或物理去除。 具体地，硫化氢可以通过在改性的搅拌浮选槽中的水性螯合过渡金属溶液中的氧化从气流中除去。 相同的原理可以用于其中气相分散在液相中以实现在这些相中存在的组分之间的相互作用的其它方法。 还描述了包括这种改进的搅拌浮选槽的气液接触装置，通常是组合的化学反应器和固体产物分离装置。 为了实现有效的传质和快速反应，通过以至少约350in / sec的叶片尖速度旋转叶轮来形成含有硫化氢和氧气的气泡。 达到要求的剪切。 为了帮助反应，周围的护罩具有多个开口，通常具有相当直径的纵横比约为1的开口，并以均匀的图案排列，例如提供通过其中的小于约0.02磅/分钟/开口的气流 护罩。 通常，通过护罩中的开口的气体的气体速度指数为每个开口每秒至少约18次，优选每个开口每秒至少约24次。 每个开口具有对应于小于约一英寸的当量直径的面积。
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52.发明授权
公开(公告)号：US4850036A
公开(公告)日：1989-07-18
申请号：US87726
申请日：1987-08-21
申请人： James W. Smith
发明人： James W. Smith
IPC分类号： H04B1/715 , H04B1/7156
CPC分类号： H04B1/7156 , H04B2001/7154 , H04B2001/71563
摘要： A frequency-hopping radio communication system is disclosed comprising a control unit which transmits to and receives from each of a plurality of slave stations using a frequency-hopping mode of operation. During a start-up mode, the control unit communicates a starting message to each slave station using a predefined frequency. The message identifies to each slave station a frequency-hopping sequence to be used to select the frequencies from a group of frequencies for transmission to and reception from the control unit. This message also specifies to each slave station unique starting frequencies in the frequency-hopping sequence at which to begin transmitting and receiving. All slave station transmissions are synchronized to the control unit transmissions, thereby preventing any two stations from concurrently using the same frequencies for either transmitting to or receiving from the control unit.
摘要翻译： 公开了一种跳频无线通信系统，其包括使用跳频操作模式向多个从站中的每一个发送和接收的控制单元。 在启动模式期间，控制单元使用预定义的频率将起始消息传送到每个从站。 该消息向每个从站识别用于从用于从控制单元发送到和接收的一组频率中选择频率的跳频序列。 该消息还在开始发送和接收的跳频序列中向每个从站指定唯一的起始频率。 所有从站传输与控制单元传输同步，从而防止任何两个站同时使用相同的频率来发送或从控制单元接收。
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公开(公告)号：US4520233A
公开(公告)日：1985-05-28
申请号：US369289
申请日：1982-04-16
申请人： James W. Smith
发明人： James W. Smith
CPC分类号： H04M1/665
摘要： A telephone security apparatus placed at a subscriber station intercepts and screens incoming calls direct to a terminal through a modem. The security apparatus prevents completion of a connection to the terminal equipment unless the incoming call provides a predefined access code and the call is found to have been made from the remote subscriber station to which the predefined access code has been assigned. The security apparatus automatically dials back the subscriber station corresponding to the access code given on the incoming call. A microprocessor-based embodiment is described.
摘要翻译： 放置在用户站的电话安全装置通过调制解调器拦截和屏蔽直接到终端的呼入。 安全装置防止完成与终端设备的连接，除非来电提供预定义的访问代码，并且发现已经从已经分配了预定义访问代码的远程订户站进行了呼叫。 安全设备自动拨回与在呼入呼叫中给出的接入码相对应的用户台。 描述基于微处理器的实施例。
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54.发明授权
公开(公告)号：US4035588A
公开(公告)日：1977-07-12
申请号：US691107
申请日：1976-05-28
CPC分类号： H04Q3/00
摘要： A circuit for controlling multiple signalling sources within a key telephone system for the establishment of priorities. The circuit inhibits connection to, or permits disconnection of a secondary signal source from a selected amplifier whenever a primary signal source is connected to the same amplifier. Circuitry is also provided to indicate the disconnect condition.
摘要翻译： 用于控制密钥电话系统内的多个信令源的电路，用于建立优先级。 当主信号源连接到同一放大器时，电路禁止连接到或者允许次级信号源与所选放大器断开连接。 还提供电路以指示断开状态。
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