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1. 发明授权

US4540022A Choke for drilling or production use 失效
标题翻译：凿钻或生产用途
公开(公告)号：US4540022A
公开(公告)日：1985-09-10
申请号：US383550
申请日：1982-06-01
申请人： Harry R. Cove
发明人： Harry R. Cove
IPC分类号： E21B34/02 , F16K47/04 , F16K47/08 , F16K11/07 , F16K3/24
CPC分类号： E21B34/02 , F16K47/04 , F16K47/08 , Y10T137/86734 , Y10T137/86791
摘要： A choke is provided having a stationary tubular flow nozzle with throttling ports formed through its side wall. A movable tubular throttling ring may be moved over the nozzle to restrict or close the ports. The required liquid-tight seal or shut-off is obtained with annular seal surfaces formed on the nozzle and ring but remote from and upstream of the ports, so that erosion of these seal surfaces, by the high velocity streams passing through the ports, is minimized.
摘要翻译：提供了一种扼流器，其具有固定的管状流动喷嘴，其具有通过其侧壁形成的节流端口。可移动的管状节流环可以在喷嘴上移动以限制或关闭端口。通过形成在喷嘴和环上但远离和远离端口的环形密封表面获得所需的液密密封或切断，使得通过端口的高速流侵蚀这些密封表面是最小化。

2. 发明授权

US4360040A Multiple orifice valves 失效
标题翻译：多孔阀
公开(公告)号：US4360040A
公开(公告)日：1982-11-23
申请号：US125273
申请日：1980-02-27
申请人： Harry R. Cove , John D. Muchow
发明人： Harry R. Cove , John D. Muchow
IPC分类号： F16K3/34 , F16K47/04
CPC分类号： F16K3/34 , Y10T137/86734 , Y10T137/86743
摘要： An orifice flow control valve is provided with a set of disks mounted in the body of the valve. A downstream disk is mounted in a fixed position in the valve body and an upstream disk is rotatable in the valve body and in face-to-face engagement concentric with the downstream disk. There are holes in the downstream disk and in the upstream disk for control of the amount and direction of flow of fluids through the valve. When the valve is in a position between fully open and closed, there are at least two streams through the disks which impinge on each other for providing a resultant stream flowing generally parallel to the axis of the valve.
摘要翻译：孔口流量控制阀设置有安装在阀体中的一组盘。下游盘安装在阀体中的固定位置，并且上游盘可在阀体中旋转并且与下游盘同心地面对面接合。下游盘和上游盘中有孔，用于控制通过阀的流体的流量和方向。当阀处于完全打开和关闭之间的位置时，通过盘的至少两个流相互撞击，以提供大致平行于阀的轴线流动的合流。

3. 发明授权

US4471810A Valve apparatus 失效
标题翻译：阀门装置
公开(公告)号：US4471810A
公开(公告)日：1984-09-18
申请号：US365739
申请日：1982-04-05
申请人： John D. Muchow , Harry R. Cove
发明人： John D. Muchow , Harry R. Cove
IPC分类号： F16K39/04 , F17D1/08
CPC分类号： F16K39/04 , Y10T137/86791
摘要： A new and improved valve apparatus having an operating mechanism sealed in such a manner that the fluid pressure urging thereon produces offsetting or balancing forces to enhance ease of valve operation. To accomplish the force balancing, the flow closure means is continuously sealed to the valve housing and seat to produce the desired pressure responsive surfaces. By balancing the pressure forces, movement of the valve closure element between the open and closed positions with a minimum of operating force is accomplished. In addition the operating mechanism tubular flow closure element and valve seat having a plurality of opposed radially disposed flow opening are arranged so that the controlled flow through the openings into the seat impinges on itself to prevent flow cutting or erosion of the valve seat. When the flow closure element moves to the closed position, it activates a protected second seal on the seat to block flow throuh the flow openings.
摘要翻译：一种新的和改进的阀装置，其具有以使得其上推动的流体压力产生偏移或平衡力而密封的操作机构，以增强阀操作的便利性。为了实现力平衡，流动闭合装置被连续密封到阀壳体和阀座以产生所需的压力响应表面。通过平衡压力，实现了阀闭合元件在打开和关闭位置之间以最小的操作力的运动。此外，操作机构管状流动关闭元件和具有多个相对的径向设置的流动开口的阀座被布置成使得通过开口进入座的受控流动自身撞击以防止阀座的流动切断或侵蚀。当流动闭合元件移动到关闭位置时，它启动座上受保护的第二密封件以阻止流动开口流动。

4. 发明授权

US4461316A Drilling choke 失效
标题翻译：钻cho
公开(公告)号：US4461316A
公开(公告)日：1984-07-24
申请号：US414418
申请日：1982-09-02
申请人： Harry R. Cove , John D. Muchow
发明人： Harry R. Cove , John D. Muchow
IPC分类号： E21B21/10 , E21B34/02 , F16K1/34 , F16K37/00
CPC分类号： E21B21/106 , E21B34/02 , Y10T137/5762 , Y10T137/8326
摘要： A fluid flow control valve especially adapted for use during well drilling operations as a drilling choke is disclosed. A replaceable ported seat and movable tubular flow control element cooperate to control flow through the angled body valve housing. The flow closure mechanism is operating fluid pressure balanced for ease of valve operation during extreme pressure working conditions. Internal flow control working parts of the valve are rugged in construction and assemblage. The portions of the valve subject to wear or flow erosion are also easily replaced when required. An indicator is arranged to signal incipient failure of the replaceable parts of the valve in order that they may be replaced prior to the occurrence of a major failure.
摘要翻译：公开了一种流体流量控制阀，特别适用于钻井作业中的钻井扼流圈。可替换的移动式座椅和可移动的管状流量控制元件配合以控制流过成角度阀体壳体的流量。流动关闭机构在极压工作条件下易于操作液压平衡。阀门内部流量控制工作部件结构坚固耐用。当需要时，容易磨损或流动侵蚀的阀门也容易更换。指示器被布置成指示阀的可更换部件的初始故障，以便在发生主要故障之前可以更换它们。

5. 发明授权

US4541295A Valve actuator having a rotary bi-directional apparatus with a dual ratchet mechanism 失效
标题翻译：阀致动器具有带双棘轮机构的旋转双向装置
公开(公告)号：US4541295A
公开(公告)日：1985-09-17
申请号：US558714
申请日：1983-12-07
申请人： Harry R. Cove
发明人： Harry R. Cove
IPC分类号： F16D41/18 , F16H31/00 , F16K31/16 , F16H27/02 , F16K31/52
CPC分类号： F16K31/16 , F16D41/18 , F16H31/005 , Y10T74/1555 , Y10T74/1569
摘要： A rotary bi-directional valve actuator having a new and improved dual ratchet mechanism. The linkage maintains the pawl disengaged or uncoupled from the drive bushing until operated to protect the ratchet mechanism and to prevent its binding or jamming. The disengagement of the mechanism compensates for inadvertent rotational movement of the valve stem which could result in malfunction or damage to the actuator when actuated. The actuator is extremely rugged and durable in construction for a long operating life. The simplified construction of the actuator is also easy to maintain and easy access to the working parts is provided by the sealed housing.
摘要翻译：具有新的和改进的双棘轮机构的旋转双向阀致动器。联动装置保持棘爪与驱动套筒分离或分离，直到操作以保护棘轮机构并防止其结合或卡住。机构的脱离补偿阀杆的意外旋转运动，这可能导致致动器故障或致动器损坏。执行器结构非常坚固耐用，使用寿命长。致动器的简化构造也易于维护，并且通过密封壳体容易地进入工作部件。

6. 发明授权

US3977438A Means to reset an actuator pilot valve 失效
标题翻译：意图重置执行器导阀
公开(公告)号：US3977438A
公开(公告)日：1976-08-31
申请号：US618735
申请日：1975-10-02
申请人： John D. Muchow , Harry R. Cove
发明人： John D. Muchow , Harry R. Cove
IPC分类号： F16K17/34 , F16K17/00 , F16K17/10 , F16K17/32
CPC分类号： F16K17/32 , F16K17/00 , F16K17/10 , Y10T137/8663 , Y10T137/86686 , Y10T137/86702
摘要： Reset means to advance a valve spool from a first valve seat to a second valve seat in opposition to exceedingly high biasing fluid pressure comprises a manually rotatable actuating means in screw threaded engagement with the body of the pilot valve. With the manually operable actuator at its retracted position, means is manually operated to operatively connect the manual actuator to the valve spool to permit advance of the manual actuator to drive the valve spool from the first valve seat to the second valve seat against the resistance of the biasing fluid pressure. In consequence of the advance of the valve spool to the second valve seat, an opposite fluid pressure progressively rises to a normal operating range at which it dominates the biasing fluid pressure to hold the spool against the second valve seat independently of the manual actuator and this rise of the opposite fluid pressure to the normal operating range automatically releases the connecting means to give the valve spool freedom for subsequent retraction by the biasing fluid pressure in the event that the dominating fluid pressure falls below its normal operating range.

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