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    • 41. 发明授权
    • Insulating device and assembly
    • 绝缘装置和装配
    • US07387167B2
    • 2008-06-17
    • US10482679
    • 2002-07-01
    • Simon Benedict FraserWilliam Brown-KerrJohn Knight
    • Simon Benedict FraserWilliam Brown-KerrJohn Knight
    • E21B17/02F16L55/00
    • E21B17/028F16L25/021
    • There is disclosed an electrically insulating device in the form of a sleeve (12) for a downhole tool, for electrically insulating a first threaded electrically conductive member in the form of an anchor sub (16) from a second threaded electrically conductive member in the form of an insulated sub (18).An assembly (10) including the sleeve (12) has particular use in measurement while drilling (MWD)/logging while drilling (LWD) procedures. In one embodiment, a third member in the form of a threaded electrically conductive sleeve sub (20) is coupled to the insulated sub by a second sleeve (14), to create an insulated gap between the anchor and sleeve subs (16, 20).
    • 公开了一种用于井下工具的套筒(12)形式的电绝缘装置,用于将锚子(16)形式的第一螺纹导电构件与形式为第二螺纹导电构件 的绝缘子(18)。 包括套筒(12)的组件(10)在钻孔(MWD)/测井同时进行钻井(LWD)程序时具有特别的用途。 在一个实施例中,螺纹导电套筒子(20)形式的第三构件通过第二套筒(14)联接到绝缘子,以在锚定件和套筒衬套(16,20)之间形成绝缘的间隙, 。
    • 44. 发明申请
    • Control stability system for moist air dehumidification units and method of operation
    • 湿空气除湿装置的控制稳定系统和操作方法
    • US20060086115A1
    • 2006-04-27
    • US10970958
    • 2004-10-22
    • Nathan WeberJohn KnightStephen Pickle
    • Nathan WeberJohn KnightStephen Pickle
    • F25D17/06F25B29/00F25B41/00F25B49/00
    • F24F3/153F25B41/04F25B2400/0403
    • A system and humidity control method is provided for a multi-stage cooling system having two or more refrigerant circuits that balances humidity control and cooling demand. Each refrigerant circuit includes a compressor, a condenser and an evaporator. A hot gas reheat circuit having a hot gas reheat coil is connected to one of the refrigerant circuits and is placed in fluid communication with the output airflow from the evaporator of that refrigerant circuit to provide additional dehumidification to the air when humidity control is requested. The hot gas reheat circuit bypasses the condenser of the refrigerant circuit during humidity control. Humidity control is performed during cooling operations and ventilation operations. During a first stage cooling operation using only one refrigerant circuit and having a low cooling demand, the request for humidity control activates the hot gas reheat circuit for dehumidification and activates a second refrigerant circuit to provide cooling capacity. The hot gas reheat circuit is sized to match the cooling provided by the evaporator so that air cooled by passing through the evaporator can be reheated. Excess refrigerant is passed into the inactive cooling circuit so that proper pressure and temperature can be maintained in the active reheat circuit and os that high head pressure that can damage the compressor can be avoided. During a second stage cooling operation using two or more refrigerant circuit and having a high cooling demand, the request for humidity control is suspended and is initiated only upon the completion of the second stage cooling demand.
    • 为具有平衡湿度控制和冷却需求的两个或多个制冷剂回路的多级冷却系统提供一种系统和湿度控制方法。 每个制冷剂回路包括压缩机,冷凝器和蒸发器。 具有热气体再热线圈的热气体再热回路连接到一个制冷剂回路,并且与来自该制冷剂回路的蒸发器的输出气流成流体连通,以便在要求湿度控制时向空气提供额外的除湿。 湿气再热回路在湿度控制期间旁路制冷剂回路的冷凝器。 在冷却操作和通风操作期间进行湿度控制。 在仅使用一个制冷剂回路并且具有低冷却需求的第一阶段制冷操作期间,对湿度控制的请求激活用于除湿的热气再热回路,并且启动第二制冷剂回路以提供冷却能力。 热气体再热回路的尺寸与蒸发器所提供的冷却相匹配,使得通过蒸发器冷却的空气可被再加热。 过量制冷剂进入惰性冷却回路,从而可以在主动再热回路和阀门中保持适当的压力和温度,可以避免可能损坏压缩机的高压头。 在使用两个或更多个制冷剂回路并具有高冷却需求的第二阶段制冷操作期间,停止对湿度控制的请求,并且仅在第二阶段冷却需求完成时启动。
    • 46. 发明申请
    • System and method for using hot gas re-heat for humidity control
    • 使用热气再热进行湿度控制的系统和方法
    • US20050022541A1
    • 2005-02-03
    • US10929757
    • 2004-08-30
    • Ronald RayburnStephen PickleJohn KnightStephen BellahAnthony Landers
    • Ronald RayburnStephen PickleJohn KnightStephen BellahAnthony Landers
    • F24F3/153F25B41/04F25D21/06F25B49/00F25D17/04
    • F25B41/04F24F3/153F25B2400/061
    • A humidity control method is provided for a multi-stage cooling system having two or more refrigerant circuits. A hot gas re-heat circuit having a hot gas re-heat coil, an evaporator and a compressor, such as the evaporator and compressor utilized in one of the refrigerant circuits, is provided. The hot gas re-heat coil is placed in fluid communication with the output airflow from the evaporator of the re-heat circuit. Humidity control is performed during cooling operations and ventilation operations. During a first stage cooling operation using only one refrigerant circuit and having a low cooling demand, the request for humidity control activates the hot gas re-heat circuit for dehumidification and activates a second refrigerant circuit to provide cooling capacity. During a second stage cooling operation using multiple refrigerant circuits and having a high cooling demand, the request for humidity control is suspended until completion of the second stage cooling demand.
    • 为具有两个或更多个制冷剂回路的多级冷却系统提供一种湿度控制方法。 提供了一种具有热气体再热线圈,蒸发器和压缩机的热气体再热回路,例如在一个制冷剂回路中使用的蒸发器和压缩机。 热气再热线圈与来自再热回路的蒸发器的输出气流流体连通。 在冷却操作和通风操作期间进行湿度控制。 在仅使用一个制冷剂回路并且具有低冷却需求的第一阶段制冷操作期间,对湿度控制的请求激活用于除湿的热气再热回路,并且启动第二制冷剂回路以提供冷却能力。 在使用多个制冷剂回路并具有高冷却需求的第二阶段制冷操作期间,停止对湿度控制的请求,直到完成第二阶段冷却需求。
    • 47. 发明授权
    • Disconnect policy for distributed computing systems
    • 断开分布式计算系统的策略
    • US06412077B1
    • 2002-06-25
    • US09231920
    • 1999-01-14
    • Thomas Anthony RodenJohn KnightDavid Cates
    • Thomas Anthony RodenJohn KnightDavid Cates
    • G06F1100
    • H04L67/141H04L63/102H04L67/14H04L67/32
    • A mechanism for performing a disconnect policy involving authorizing a data communication session between a client and a first server is disclosed. The mechanism provides a failover scheme in which local servers record the number of active sessions that they have authorized for a particular user entity. Each user entity is assigned an authoritative server. The authoritative servers maintain global session information for each user entity in which they are assigned. When a local server cannot authorize a session for a particular user entity the local server communicates with the authoritative server to determine whether a session should be established for the user entity. If communication is lost between a local server and an authoritative server, the local server assumes that no other servers have authorized active sessions for the particular user entity. In a similar manner, the authoritative server assumes that the local server has not authorized any active sessions for the particular entity. Thus, both the local server and the authoritative server may independently authorize sessions for the user entity. When communication is re-established between the local server and the authoritative server, the servers exchange information to recreate the current state. If it is determined that too many active sessions have been established for user entity, further authorization requests from the user entity are denied until the number of active sessions is reduced below an acceptable level. This, failover scheme removes the need for redundant servers and instead distributes the burden of redundancy to the local servers where communication problems are far less likely to occur.
    • 公开了一种用于执行涉及授权客户端与第一服务器之间的数据通信会话的断开策略的机制。 该机制提供了一种故障转移方案,其中本地服务器记录他们为特定用户实体授权的活动会话数。 每个用户实体都被分配一个权威服务器。 授权服务器为其分配的每个用户实体维护全局会话信息。 当本地服务器无法为特定用户实体授权会话时,本地服务器与权威服务器进行通信,以确定是否应为用户实体建立会话。 如果本地服务器和授权服务器之间的通信丢失,本地服务器假定没有其他服务器授权特定用户实体的活动会话。 以类似的方式,授权服务器假定本地服务器尚未授权特定实体的任何活动会话。 因此,本地服务器和权威服务器可以独立地授权用户实体的会话。当本地服务器和权威服务器之间重新建立通信时,服务器交换信息以重新创建当前状态。 如果确定为用户实体建立了太多的活动会话,则拒绝来自用户实体的进一步的授权请求,直到活动会话的数量减少到可接受的水平以下。 这种故障切换方案不再需要冗余服务器,而是将冗余负担分配给本地服务器,因为这些服务器的通信问题不太可能发生。
    • 48. 发明授权
    • Mechanism for authorizing a data communication session between a client and a server
    • 授权客户端和服务器之间的数据通信会话的机制
    • US06412007B1
    • 2002-06-25
    • US09231926
    • 1999-01-14
    • Sonny BuiDavid CatesPauline ChenTerry KerstetterJohn KnightKavita Shekhar PatilThomas Anthony Roden
    • Sonny BuiDavid CatesPauline ChenTerry KerstetterJohn KnightKavita Shekhar PatilThomas Anthony Roden
    • G06F1516
    • H04L63/10H04L67/14H04L67/22H04L69/329
    • A mechanism for authorizing a data communication session between a client and a first server is disclosed. When a request is received to establish a session with a particular entity that is associated with the client, it is determined whether authorization of the session can be performed locally at a second server. If it is determined that authorization of the session can be performed locally at the second server then, the first server is informed that the session may be established between the client and the first server for the particular entity. A third server that is associated with the particular entity is identified and once the first server is informed that the session may be established, the third server is informed that the session has been authorized to be established for the particular entity. However, if authorization of the session cannot be performed locally at the second server then, the third server is requested to authorize the session between the client and the first server. Thereafter, based on the response that is received from the third server, the first server is informed as to whether the session may be authorized.
    • 公开了一种用于授权客户端和第一服务器之间的数据通信会话的机制。 当接收到与与客户端相关联的特定实体建立会话的请求时,确定是否可以在第二服务器本地执行会话的授权。 如果确定可以在第二服务器本地执行会话的授权,则通知第一服务器可以在客户端和特定实体的第一服务器之间建立会话。 识别与特定实体相关联的第三服务器,并且一旦通知第一服务器可以建立会话,则通知第三服务器该会话已被授权为该特定实体建立。 然而,如果会话的授权不能在第二服务器本地执行,则请求第三服务器授权客户端和第一服务器之间的会话。 此后,基于从第三服务器接收到的响应,通知第一服务器是否该会话被授权。