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1. 发明授权

US4483360A Actuator mechanism for double-block and vent valve 失效
标题翻译：双块和排气阀执行器机构
公开(公告)号：US4483360A
公开(公告)日：1984-11-20
申请号：US473988
申请日：1983-03-10
申请人： Herman E. Knappe , James W. Scott
发明人： Herman E. Knappe , James W. Scott
IPC分类号： F16K1/44 , F16K35/02 , B08B9/02 , F16K31/122
CPC分类号： F16K1/446 , Y10T137/4259 , Y10T137/5762 , Y10T137/87121 , Y10T137/8803 , Y10T137/88038
摘要： A double-block and vent valve having an improved actuator mechanism to allow one part of a composite valve member to be lifted separately from another. The actuator mechanism overlies the valve housing and is connected to the two valve member parts via coaxial rod and tube members. Hold-down cams normally block the upward movement of the tube member to positively lock the upper valve member part against its seat when it is desired to lift only the lower valve member part. A pair of pivotal cams are spring-biased to this blocking position where they bear against lug means carried by the tube member. A small, horizontal, fluid-actuated cylinder pivots the hold-down cams to a non-interfering position whenever it is desired to lift only the upper valve member part or to lift the composite valve member.
摘要翻译：一种具有改进的致动器机构的双块和排气阀，以允许复合阀构件的一部分与另一部分分开提升。致动器机构覆盖在阀壳体上，并且通过同轴的杆和管构件连接到两个阀构件部件。当希望仅抬起下阀构件部分时，压紧凸轮通常阻止管构件的向上运动，以将上阀构件部分积极地锁定在其座上。一对枢转凸轮被弹簧偏置到该阻挡位置，在该位置处它们抵靠由管构件承载的凸耳装置。只要希望仅抬起上阀构件部分或提升复合阀构件，小型水平的流体致动缸将压紧凸轮枢转到非干扰位置。

2. 发明授权

US4373545A Double block and vent valve 失效
标题翻译：双块和排气阀
公开(公告)号：US4373545A
公开(公告)日：1983-02-15
申请号：US228229
申请日：1981-01-26
申请人： Herman E. Knappe
发明人： Herman E. Knappe
IPC分类号： F16K1/44 , F16K25/02 , F16K37/00 , F16K11/20 , F16K51/00
CPC分类号： F16K1/446 , F16K37/00 , Y10T137/4259 , Y10T137/5762 , Y10T137/8803 , Y10T137/88038 , Y10T137/88046
摘要： A valve has an upper region connectable to a first piping system, a lower region connectable to a second piping system and an intermediate passageway therebetween which is opened and closed by a valve member which is reciprocated by an overhead actuator. The valve member has first and second members which are slidable relative to one another. In the closed position, the first and second valve members seal with spaced apart seats and define therebetween an intermediate chamber including the surface of the interior passageway between the seals. A lower valve member extending exterior of the lower region has cleaning solution inlet and outlet passageways which communicate with the intermediate chamber whereby the surfaces of the intermediate chamber may be cleaned and whereby any leakage around either of the seals is drained externally. In the open position in which the valve member is positioned in the upper region, the first and second parts are biased together and a seal is formed between the valve member parts to block communication between the piping systems, the cleaning solution passageways of the valve member and drain.
摘要翻译：阀具有可连接到第一管道系统的上部区域，可连接到第二管道系统的下部区域和在其间的中间通道，其通过由顶部致动器往复运动的阀构件打开和关闭。阀构件具有可相对于彼此滑动的第一和第二构件。在关闭位置，第一和第二阀构件用间隔开的座密封并在其间限定包括密封件之间的内部通道的表面的中间室。在下部区域的外部延伸的下部阀构件具有与中间室连通的清洁溶液入口和出口通道，从而可以清洁中间室的表面，并且由此在任何一个密封件周围的任何泄漏都从外部排出。在阀构件位于上部区域的打开位置中，第一和第二部件被偏压在一起，并且在阀构件部件之间形成密封以阻止管道系统之间的连通，阀构件的清洁溶液通道和排水。

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