Device for coupling a pair of rods
    1.
    发明授权
    Device for coupling a pair of rods 失效
    用于连接一对杆的装置

    公开(公告)号:US4176981A

    公开(公告)日:1979-12-04

    申请号:US884088

    申请日:1978-03-06

    摘要: A coupling is mounted between a valve steam of a valve and a rod of a valve actuator. The rod includes an extension having a piston member at the end thereof which is received within a cylinder member mounted on the end of the valve stem. The extension and piston member thereof define with the cylinder member a chamber within the cylinder member. Force can be transmitted from the rod to the stem by full insertion of the piston member within the cylinder member. Hydraulic fluid under pressure from an accumulator secured to the cylinder member is in communication with the chamber to limit the force transmitted from the rod to the stem when the relative position of the rod with respect to the stem causes the piston member to be located intermediate of the cylinder member.

    摘要翻译: 联接器安装在阀的阀门蒸汽和阀致动器的杆之间。 杆包括在其端部具有活塞构件的延伸部,该延伸部容纳在安装在阀杆的端部上的气缸构件内。 延伸部件和活塞部件与气缸部件一起限定气缸部件内的腔室。 通过将活塞构件完全插入气缸构件内,力可以从杆传递到杆。 来自固定到气缸构件的蓄能器的压力下的液压流体与腔室连通,以在杆相对于杆的相对位置使得活塞构件位于 气缸构件。

    Device for coupling a pair of rods
    2.
    发明授权
    Device for coupling a pair of rods 失效
    用于连接一对杆的装置

    公开(公告)号:US4257714A

    公开(公告)日:1981-03-24

    申请号:US884091

    申请日:1978-03-06

    IPC分类号: F16K31/44 F16D3/80 F16L17/00

    摘要: A coupling is mounted between a valve stem of a valve and a rod of a valve actuator. The rod includes an extension having a piston member at the end thereof which is received within a cylinder member mounted on the end of the valve stem. The extension and piston member thereof define with the cylinder member a chamber within the cylinder member. Force can be transmitted from the rod to the stem by full insertion of the piston member within the cylinder member. A pressurized gas is contained within the chamber to limit the force transmitted from the rod to the stem when the relative position of the rod with respect to the stem causes the piston member to be located intermediate of the cylinder member.

    摘要翻译: 联接器安装在阀的阀杆和阀致动器的杆之间。 杆包括在其端部具有活塞构件的延伸部,该延伸部容纳在安装在阀杆的端部上的气缸构件内。 延伸部件和活塞部件与气缸部件一起限定气缸部件内的腔室。 通过将活塞构件完全插入气缸构件内,力可以从杆传递到杆。 当杆相对于杆的相对位置使得活塞构件位于气缸构件的中间时,加压气体容纳在腔室内以限制从杆传递到杆的力。

    Orifice plate seal ring for controlled closure check valve
    3.
    发明授权
    Orifice plate seal ring for controlled closure check valve 失效
    孔板密封圈用于控制闭合止回阀

    公开(公告)号:US4522230A

    公开(公告)日:1985-06-11

    申请号:US468832

    申请日:1983-02-23

    摘要: A check valve is comprised of a body having inlet and outlet passages and a cylindrical chamber within the body, the axis of which forms an angle with the axis of the inlet and outlet passages. An orifice plate in the cylindrical chamber divides the chamber into a dashpot chamber and a valve chamber which is in communication with the inlet and outlet passages. A valve seat in the valve chamber separates the inlet and outlet passages. A valve closure element is mounted for reciprocation in the valve chamber between a valve open position and a valve closed position where an element is seated upon the seat. A piston is mounted for reciprocation in the dashpot chamber. A piston rod extends through an opening in the orifice plate and connects the closure element and the piston. Means are provided to apply the pressure in the outlet passage to the piston to urge the piston and closure element toward valve closed position. At least two parallel bleed passages are provided through the orifice plate to allow the flow of fluid between the dashpot chamber and the valve chamber. A pressure energized sealing member is responsive to the pressure differential between the dashpot chamber and the valve chamber to close one of the bleed passages when the differential exceeds a predetermined amount.

    摘要翻译: 止回阀包括具有入口通道和出口通道的主体以及主体内的圆柱形室,其轴线与入口和出口通道的轴线形成一角度。 圆柱形腔室中的孔板将腔室分成缓冲器室和与入口通道和出口通道连通的阀室。 阀室中的阀座分开入口和出口通道。 阀闭合元件被安装用于在阀室之间在阀打开位置和阀关闭位置之间往复运动,其中元件位于座椅上。 安装活塞用于在缓冲器室中往复运动。 活塞杆延伸穿过孔板中的开口并连接闭合元件和活塞。 提供装置以将出口通道中的压力施加到活塞,以将活塞和闭合元件推向阀关闭位置。 通过孔板提供至少两个平行的排放通道,以允许缓冲器室和阀室之间的流体流动。 当压差超过预定量时,压力通电的密封构件响应于缓冲室和阀室之间的压力差,以封闭其中一个排放通道。

    Globe valve and method for making same
    5.
    发明授权
    Globe valve and method for making same 失效
    截止阀及其制作方法

    公开(公告)号:US5288054A

    公开(公告)日:1994-02-22

    申请号:US84541

    申请日:1993-06-28

    IPC分类号: F16K25/00 F16K1/00 F16K1/42

    CPC分类号: F16K1/427

    摘要: A valve is presented comprising a valve body defining a chamber, a valve stem extending into said chamber, a disk attached to the valve stem, a discrete annular seat movably disposed in the chamber, a resilient ring disposed in the chamber adjacent the annular seat, and a retainer fixed in the chamber on a side of the seat opposite from the ring, wherein the ring exercises a bias on the seat in a direction toward the disk, urging the seat into engagement with the disk. The invention further contemplates a method for making the valve.

    摘要翻译: 提供一种阀,其包括限定腔室的阀体,延伸到所述腔室中的阀杆,附接到阀杆的盘,可移动地设置在腔室中的分立环形座,设置在邻近环形座的腔室中的弹性环, 以及保持器,其固定在所述座椅的与所述环相对的一侧上,其中所述环围绕所述座椅朝向所述盘的方向施加偏压,从而推动所述座椅与所述盘卡合。 本发明进一步考虑了一种用于制造阀的方法。

    Sealed valve and related structure
    7.
    再颁专利
    Sealed valve and related structure 失效
    密封阀及相关结构

    公开(公告)号:USRE30989E

    公开(公告)日:1982-07-06

    申请号:US165419

    申请日:1980-07-03

    IPC分类号: F16K1/10 F16K31/50 F16K41/12

    CPC分类号: F16K41/12 F16K1/10 F16K31/50

    摘要: A metal diaphragm valve including a multiple ply metal diaphragm structure comprised of a plurality of thin circular metal elements each having a planar annular rim surrounding a dome-shaped interior portion superimposed one on top of another with their annular rims fixed together to seal the hollow interior portion of a valve bonnet. A diaphragm contacting surface including at least two areas of different degrees of curvature, one of which is cruciform in shape, is mounted for axial movement in the valve bonnet. A method of making the metal diaphragm structure and a hermetically sealed valve assembly are also disclosed.

    Plug valve construction
    9.
    发明授权
    Plug valve construction 失效
    旋塞阀结构

    公开(公告)号:US4171711A

    公开(公告)日:1979-10-23

    申请号:US861248

    申请日:1977-12-16

    IPC分类号: F16K5/04 F16K27/06 F16K23/00

    摘要: An improved plug valve is of the type that includes a valve body having a bore extending therethrough and a pair of passages intersecting the bore and being substantially normal to the axis of the bore. A valve plug is disposed within the bore for selective rotation between an opened and a closed position to respectively align and misalign a port through the plug with the passages. A first circumferential sealing member between the plug and the bore above the port and the passages and a second circumferential sealing member between the plug and the bore below the port prevents fluid from escaping from an interior of the plug valve and balances fluid pressure acting on the plug. The improvements include providing opposed circumferential semi-circular grooves respectively on the bore and the plug to define a circumferential channel therebetween. The body includes a circular hole extending therethrough which is tangentially aligned with the channel. A flexible rod extends through the hole and around the channel for retention of the plug within the bore. A bottom insert is fitted within the bore to enclose the base of the plug within the body and allows fluid to escape from below the plug if the second sealing member should fail. A circumferential sealing device around the top of the plug prevents ingress of foreign matter into the region of the bore above the first sealing member.

    摘要翻译: 改进的旋塞阀是包括具有延伸穿过其中的孔的阀体和与孔相交并且基本上垂直于孔的轴线的一对通道的类型。 孔塞设置在孔内用于在打开位置和关闭位置之间选择性地旋转,以分别使通过塞子的通道与通道对准和不对准。 插塞和端口上方的孔之间的第一周向密封构件和通道以及插塞和端口下方的孔之间的第二周向密封构件防止流体从插塞阀的内部逸出并平衡作用在插塞上的流体压力 插头。 这些改进包括分别在孔和塞上设置相对的圆周半圆形凹槽以在其间限定圆周通道。 主体包括延伸穿过其中的圆形孔,其与通道切向对准。 柔性杆延伸穿过孔并围绕通道,以将塞子保持在孔内。 底部插入件装配在孔内以将塞子的基部封闭在主体内,并且如果第二密封构件失效则允许流体从塞子下方逸出。 围绕塞子顶部的周向密封装置防止异物进入第一密封构件上方的孔的区域。

    Valve positioning handle
    10.
    发明授权
    Valve positioning handle 失效
    阀定位手柄

    公开(公告)号:US4051866A

    公开(公告)日:1977-10-04

    申请号:US730929

    申请日:1976-10-08

    摘要: A valve positioning handle is for a plastic valve which is capable of being utilized in gas distribution pipes and includes a body and a fluid isolation member rotatably disposed therein. If the valve becomes jammed, it and/or the pipe are capable of being destroyed by the application of excessive forces to the isolating member and the body during rotation. The valve positioning handle includes an extended fitting centrally aligned with the isolation member and has a number of working surfaces thereon for the receipt of different torque applying tools. A connecting section between the extended fitting and the isolation member is designed to fail prior to the generation of any excessive forces which might destroy the valve or pipe by a tool being utilized to rotate the fitting.