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    • 15. 发明申请
    • Apparatus for controlling slip deployment in a downhole device
    • 用于控制井下装置中的滑动部署的装置
    • US20080073086A1
    • 2008-03-27
    • US11525350
    • 2006-09-22
    • Robert Bradley CookGlenn Mitchel Walls
    • Robert Bradley CookGlenn Mitchel Walls
    • E21B33/12
    • E21B33/129
    • An apparatus for use in a well. The apparatus comprises a mandrel containing a radial shoulder, a sub member concentrically disposed about the mandrel, and an upper slip, concentrically disposed about the mandrel, for engaging the well. The apparatus further comprises an upper cone abutting an underside of the upper slip, and wherein the upper cone is disposed about the mandrel, and an elastomer operatively associated with the upper cone, and wherein the elastomer is disposed about the mandrel. The apparatus further includes a lower slip, concentrically disposed about the mandrel, for engaging with the internal portion of the well, and lower cone abutting an underside of the lower slip, and wherein the lower cone is disposed about the mandrel, and wherein the lower cone is operatively associated with the elastomer. The apparatus further contains a first alignment member selectively connecting the sub with the upper slip, and wherein the first alignment pin is selected to shear at a first predetermined force.
    • 用于井中的装置。 该装置包括一个包含径向肩部的心轴,围绕心轴同心设置的副构件,以及围绕心轴同心设置的用于接合井的上部滑动件。 所述设备还包括邻接所述上滑动件的下侧的上锥体,并且其中所述上锥体围绕所述心轴设置,以及与所述上锥体可操作地相关联的弹性体,并且其中所述弹性体围绕所述心轴设置。 该装置还包括一个同心地围绕心轴设置的下滑动件,用于与井的内部部分接合,下部锥体邻接下部滑动件的下侧,并且其中下部锥体围绕心轴设置,并且其中下部滑块 锥体与弹性体可操作地相关联。 该装置还包括选择性地将子与上滑差连接的第一对准构件,并且其中第一对准销被选择为以第一预定力剪切。
    • 19. 发明授权
    • System for awarding token to client for accessing first data block
specified in client request without interference due to contention from
other client
    • 用于向客户端授予令牌的系统,用于访问客户端请求中指定的第一个数据块,而不会由于其他客户端的争用而受到干扰
    • US5852747A
    • 1998-12-22
    • US525991
    • 1995-09-08
    • Robert Bradley BennettEugene JohnsonTerrence L. Woodnorth
    • Robert Bradley BennettEugene JohnsonTerrence L. Woodnorth
    • G06F17/30G06F13/14
    • G06F17/30171
    • A client/server computer system manages shared files. A client includes a data cache and an associated cache manager, and executes a client application that requests data from a shared file. In response to the request, the client cache manager determines if the data is currently stored in the data cache, and if so, grants the client access to the data in the cache. However, if the data is not currently stored in the cache, the client cache manager sends to the server a request for multiple consecutive blocks of data beginning with the first block containing the data requested by the client from the shared file. The server includes a token manager which receives the request, and in response (a) awards the token for a first data block specified in the request regardless of contention for the first data block and (b) awards tokens for all other consecutive blocks following the first block of the multiple blocks held by a client who also holds the token for the first block. However, if another client currently holds a contending token for one of the consecutive blocks other than the first block but does not also hold the token for the first block, then the token management process awards only the tokens for the first block and all blocks between the first block and the one block.
    • 客户端/服务器计算机系统管理共享文件。 客户机包括数据高速缓存和关联的高速缓存管理器,并执行从共享文件请求数据的客户端应用程序。 响应于该请求,客户端缓存管理器确定数据当前是否存储在数据高速缓存中,如果是,则授予客户端访问高速缓存中的数据。 然而,如果数据当前不存储在高速缓存中,则客户端缓存管理器向包含从客户端从共享文件请求的数据的第一块开始的多个连续数据块的请求发送给服务器。 所述服务器包括接收所述请求的令牌管理器,并且作为响应(a)为所述请求中指定的第一数据块授予所述令牌,而不管所述第一数据块的争用,以及(b)为所述其他连续块之后的所有其他连续块授予令牌 由保存第一个块的令牌的客户端持有的多个块的第一块。 然而,如果另一个客户端当前持有除第一个块之外的连续块中的一个的竞争令牌,但是也不保存第一块的令牌,那么令牌管理过程仅奖励第一块的令牌和 第一个块和一个块。