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1. 发明授权

US5738336A Oilfield valve 失效
公开(公告)号：US5738336A
公开(公告)日：1998-04-14
申请号：US835615
申请日：1997-04-09
申请人： Devereux J. McKnight , Brent H. McKnight , James A. Cunningham
发明人： Devereux J. McKnight , Brent H. McKnight , James A. Cunningham
IPC分类号： E21B20060101 , E21B21/10 , E21B34/00 , F16K5/06 , F16K27/06 , F16K37/00
CPC分类号： E21B21/106 , F16K27/067 , F16K5/0642 , E21B2034/002 , Y10T137/7504 , Y10T137/8309
摘要： A valve comprises a valve body having threaded connections on each end. A unit handled valve mechanism includes a cage carrying a spring loaded floating valve ball. The valve mechanism is placed in and removed from the valve body without the use of special tools. The valve mechanism includes lip type polyseals allowing pressure from below to leak past a lower valve seat so pressure from below causes the valve ball to seal only against an upper seat assembly. The only segment of the valve ball in substantial compression is immediately adjacent the upper seat assembly. An actuator for the valve fits onto a connector between the actuator and ball in only one manner, so the indicator on the actuator correctly points at the correct indicia on the valve body describing the valve condition, i.e. open or closed. An improved connector between the actuator and the valve ball minimizes the potential of deformation due to abuse.

2. 发明授权

US5529285A Oilfield valve 失效
标题翻译：油田阀门
公开(公告)号：US5529285A
公开(公告)日：1996-06-25
申请号：US328831
申请日：1994-10-24
申请人： Devereux J. McKnight , Brent H. McKnight , James A. Cunningham
发明人： Devereux J. McKnight , Brent H. McKnight , James A. Cunningham
IPC分类号： E21B20060101 , E21B21/10 , E21B34/00 , F16K5/06 , F16K27/06
CPC分类号： E21B21/106 , F16K27/067 , F16K5/0642 , E21B2034/002 , Y10T137/7504 , Y10T137/8309
摘要： A valve comprises a valve body having threaded connections on each end. A unit handled valve mechanism includes a cage carrying a spring loaded floating valve ball. The valve mechanism is placed in and removed from the valve body without the use of special tools. The valve mechanism includes lip type polyseals allowing pressure from below to leak past a lower valve seat so pressure from below causes the valve ball to seal only against an upper seat assembly. The only segment of the valve ball in substantial compression is immediately adjacent the upper seat assembly. An actuator for the valve fits onto a connector between the actuator and ball in only one manner, so the indicator on the actuator correctly points at the correct indicia on the valve body describing the valve condition, i.e. open or closed. An improved connector between the actuator and the valve ball minimizes the potential of deformation due to abuse.
摘要翻译：阀包括在每个端部上具有螺纹连接的阀体。单元处理阀机构包括承载弹簧加载的浮阀球的保持架。阀机构不用特殊工具就被放置在阀体中并从阀体上取下。阀机构包括唇形聚合物密封件，其允许从下面的压力泄漏通过下阀座，因此从下方的压力导致阀球仅对上座椅组件进行密封。阀球在实质压缩中的唯一部分紧邻上座椅组件。用于阀的致动器仅以一种方式装配在致动器和球之间的连接器上，因此致动器上的指示器正确地指向阀体上正确的标记，描述阀状态，即打开或关闭。致动器和阀球之间的改进的连接器使由于滥用引起的变形的可能性最小化。

3. 发明授权

US5628493A Oilfield valve 失效
标题翻译：油田阀门
公开(公告)号：US5628493A
公开(公告)日：1997-05-13
申请号：US615108
申请日：1996-03-14
申请人： Devereux J. McKnight , Brent H. McKnight , James A. Cunningham
发明人： Devereux J. McKnight , Brent H. McKnight , James A. Cunningham
IPC分类号： E21B20060101 , E21B21/10 , E21B34/00 , F16K5/06 , F16K27/06
CPC分类号： E21B21/106 , F16K27/067 , F16K5/0642 , E21B2034/002 , Y10T137/7504 , Y10T137/8309
摘要： A valve comprises a valve body having threaded connections on each end. A unit handled valve mechanism includes a cage carrying a spring loaded floating valve ball. The valve mechanism is placed in and removed from the valve body without the use of special tools. The valve mechanism includes lip type polyseals allowing pressure from below to leak past a lower valve seat so pressure from below causes the valve ball to seal only against an upper seat assembly. The only segment of the valve ball in substantial compression is immediately adjacent the upper seat assembly. An actuator for the valve fits onto a connector between the actuator and ball in only one manner, so the indicator on the actuator correctly points at the correct indicia on the valve body describing the valve condition, i.e. open or closed. An improved connector between the actuator and the valve ball minimizes the potential of deformation due to abuse.
摘要翻译：阀包括在每个端部上具有螺纹连接的阀体。单元处理阀机构包括承载弹簧加载的浮阀球的保持架。阀机构不用特殊工具就被放置在阀体中并从阀体上取下。阀机构包括唇形聚合物密封件，其允许从下面的压力泄漏通过下阀座，因此从下方的压力导致阀球仅对上座椅组件进行密封。阀球在实质压缩中的唯一部分紧邻上座椅组件。用于阀的致动器仅以一种方式装配在致动器和球之间的连接器上，因此致动器上的指示器正确地指向阀体上正确的标记，描述阀状态，即打开或关闭。致动器和阀球之间的改进的连接器使由于滥用引起的变形的可能性最小化。

4. 发明授权

US5246203A Oilfield valve 失效
标题翻译：油田阀门
公开(公告)号：US5246203A
公开(公告)日：1993-09-21
申请号：US906055
申请日：1992-06-29
申请人： Devereux J. McKnight , Brent H. McKnight , James A. Cunningham
发明人： Devereux J. McKnight , Brent H. McKnight , James A. Cunningham
IPC分类号： E21B20060101 , E21B21/10 , E21B34/00 , F16K5/06 , F16K27/06
CPC分类号： E21B21/106 , F16K27/067 , F16K5/0642 , E21B2034/002 , Y10T137/7504 , Y10T137/8309
摘要： A valve comprises a valve body having threaded connections on each end. A unit handled valve mechanism includes a cage carrying a spring loaded floating valve ball. The valve mechanism is placed in and removed from the valve body without the use of special tools. The valve mechanism includes lip type polyseals allowing pressure from below to leak past a lower valve seat so pressure from below causes the valve ball to seal only against an upper seat assembly. The only segment of the valve ball in substantial compression is immediately adjacent the upper seat assembly. An actuator for the valve fits onto a connector between the actuator and ball in only one manner, so the indicator on the actuator correctly points at the correct indicia on the valve body describing the valve condition, i.e. open or closed. An improved connector between the actuator and the valve ball minimizes the potential of deformation due to abuse.
摘要翻译：阀包括在每个端部上具有螺纹连接的阀体。单元处理阀机构包括承载弹簧加载的浮阀球的保持架。阀机构不用特殊工具就被放置在阀体中并从阀体上取下。阀机构包括唇形聚合物密封件，其允许从下面的压力泄漏通过下阀座，因此从下方的压力导致阀球仅对上座椅组件进行密封。阀球的实质压缩的唯一部分紧邻上座椅组件。用于阀的致动器仅以一种方式装配在致动器和球之间的连接器上，因此致动器上的指示器正确地指向阀体上正确的标记，描述阀状态，即打开或关闭。致动器和阀球之间的改进的连接器使由于滥用引起的变形的可能性最小化。

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