公开(公告)号：US07562361B2

公开(公告)日：2009-07-14

申请号：US10787797

申请日：2004-02-26

申请人： Daniel Kogan ,  Robin Smith ,  Chris White ,  Michal Piaseczny

发明人： Daniel Kogan ,  Robin Smith ,  Chris White ,  Michal Piaseczny

IPC分类号： G06F9/46

CPC分类号： G06F21/52 ,  G06F9/468

摘要： A computing device includes an operating system that manages an application and maintains threads relating thereto, where each thread has assigned attributes and the operating system executes each thread according to each attribute thereof. An interface process of the application receives a thread with a request for the application, sets an attribute of the request/thread to enforce a limitation within the application, and forwards the request/thread to the application for further processing in accordance with the limitation to produce a result. The interface process thereafter receives the same thread with the result from the application, resets the attribute of the result/thread to remove the limitation outside of the application, and forwards the result/thread for delivery to the requester. Thus, the interface process ensures by way of setting and resetting the attribute on the thread that the limitation on the application is satisfied.

摘要翻译： 计算设备包括管理应用并维护与其相关的线程的操作系统，其中每个线程已经分配了属性，并且操作系统根据每个线程执行每个线程。 应用程序的接口过程接收到具有应用请求的线程，设置请求/线程的属性以强制应用内的限制，并将请求/线程转发到应用程序以进一步处理， 产生结果。 接口过程此后接收到与应用程序结果相同的线程，重置结果/线程的属性以除去应用程序之外的限制，并将结果/线程转发给请求者。 因此，界面处理通过设置和重置线程上的属性来确保对应用程序的限制得到满足。

公开(公告)号：US06918407B2

公开(公告)日：2005-07-19

申请号：US10214876

申请日：2002-08-08

申请人： Chris White ,  Richard D. Williams

发明人： Chris White ,  Richard D. Williams

IPC分类号： F16K17/02 ,  F16K21/00

CPC分类号： F16K17/02 ,  Y10T137/7853 ,  Y10T137/8225 ,  Y10T137/8359

摘要： A safety device protects a mud pump from an over pressure condition, which can occur during normal operation. The mud pump discharge couples to a high pressure inlet at the bottom of a valve body and the discharge outlet from the valve discharges to the side of the body, ninety degrees to the inlet. In a first aspect, the safety device includes a load piston mounted to a shaft which passes through a pressure chamber cap and connects to a pneumatic cylinder assembly on the top side of the pressure chamber cap. The pneumatic cylinder assembly is operated by a control valve mounted to the base of the cylinder to set the pressure at which the safety device actuates. In a further aspect, the safety device includes a light transmissive indicator cylinder, with a flag therein mounted on a rod coupling the valve to a pneumatic actuator piston, between the actuator piston and the valve.

摘要翻译： 安全装置保护泥浆泵免受过压状态的影响，这可能在正常运行过程中发生。 泥浆泵排放物连接到阀体底部的高压入口，阀门的排放出口排放到身体侧面，与入口相隔90度。 在第一方面，安全装置包括安装到轴上的负载活塞，所述轴通过压力室盖并连接到压力室盖的顶侧上的气动缸组件。 气缸组件由安装在气缸底部的控制阀来操作，以设定安全装置致动的压力。 在另一方面，安全装置包括透光指示器气缸，其中标记在其中安装在将阀连接到致动器活塞的致动器活塞和阀之间的杆上。