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1. 发明授权

US5669739A Prestressing of mine props 失效
标题翻译：预防我的道具
公开(公告)号：US5669739A
公开(公告)日：1997-09-23
申请号：US586049
申请日：1996-01-16
申请人： Graham Heath Clarke
发明人： Graham Heath Clarke
IPC分类号： E21D15/30 , E21D15/51 , E21D15/32
CPC分类号： E21D15/306 , E21D15/512
摘要： The mine prop prestressing device (10) has a tube (12), a cup-shaped member (14) inside the tube which has a base (18) and a cylindrical side wall (20) fixed internally to the wall of the tube. A counter-member is also fixed to the tube in opposition to the cup-shaped member, and a valved inlet leads through the wall of the tube for the purpose of introducing a pressurised fluid into the tube between the base of the cup-shaped member and the counter-member. If the fluid is under sufficiently high pressure, the base of the cup-shaped member and the counter member are deformed apart from one another. The counter-member is typically in the form of an identical or similar cup-shaped member (14). The device (10) is a component part of a mine prop which includes a plunger (36, 38) inserted slidably into the tube so as to locate in a cup-shaped member. When pressurised fluid is introduced into the tube, the plunger is driven telescopically out of the tube.
摘要翻译：矿井预应力装置（10）具有管（12），管内部的杯状构件（14），其具有底部（18）和固定在管的壁上的圆柱形侧壁（20）。对置构件也与杯形构件相对地固定在管上，并且带阀的入口通过管的壁引导加压流体到杯状构件的基部之间的管中和对手。如果流体处于足够高的压力下，杯状构件和对置构件的基部彼此分开变形。相对构件通常为相同或相似的杯形构件（14）的形式。装置（10）是矿井道的组成部分，其包括可滑动地插入管中以便定位在杯形构件中的柱塞（36,38）。当加压流体被引入管中时，柱塞被可伸缩地驱动出管。

2. 发明授权

US5454669A Yield valve 失效
标题翻译：屈服阀
公开(公告)号：US5454669A
公开(公告)日：1995-10-03
申请号：US177996
申请日：1994-01-06
申请人： Christopher J. Oziem , Stephen A. Brown
发明人： Christopher J. Oziem , Stephen A. Brown
IPC分类号： E21D15/51 , E21D23/16
CPC分类号： E21D23/16 , E21D15/512
摘要： A yield valve comprises a valve body, a first inlet port, an outlet port, a valve seat, and a valve member movable between a first position in which it cooperates with the valve seat to prevent fluid communication between the inlet port and the outlet port and a second position in which the outlet port is brought into fluid communication with the inlet port. One side of the valve member is subjected to the pressure of fluid at the inlet port to urge the valve member towards its second position. Spring means acts on the other side of the valve member to urge the valve member towards its first position. The valve also has a valve chamber isolated from the inlet port and from the outlet port and a second inlet port for supplying a fluid under pressure to the chamber. The valve chamber is so arranged with respect to the valve member and the spring means that fluid pressure within the chamber will act on the valve member to urge the valve member towards its first position and will act on the spring means so as to reduce the force applied to the valve member by the spring means by an amount at least substantially equal to the force applied by the fluid pressure to the valve member.
摘要翻译：屈服阀包括阀体，第一入口端口，出口端口，阀座和可在其与阀座配合的第一位置之间移动的阀构件，以防止入口和出口之间的流体连通以及第二位置，其中所述出口与所述入口流体连通。阀构件的一侧受到入口处的流体的压力，以将阀构件推向其第二位置。弹簧装置作用在阀构件的另一侧上以将阀构件推向其第一位置。阀还具有与入口端口和出口隔离的阀室，以及用于将压力下的流体供应到室的第二入口端口。阀室相对于阀构件布置成如此，弹簧意味着室内的流体压力将作用在阀构件上以将阀构件推向其第一位置并且将作用在弹簧装置上，以便减小力通过弹簧装置施加到阀构件上的量至少基本上等于由流体压力施加到阀构件的力。

3. 发明授权

US3515166A Safety valves 失效
公开(公告)号：US3515166A
公开(公告)日：1970-06-02
申请号：US3515166D
申请日：1968-01-05
申请人： BENNES MARREL
发明人： PACCARD GILBERT
IPC分类号： E21D15/51 , F16K15/14 , F16K17/04
CPC分类号： E21D15/512 , F16K15/14 , F16K17/0453 , F16K17/046 , Y10T137/7889

4. 发明授权

US2474464A Pit prop and the like 失效
标题翻译：坑道等
公开(公告)号：US2474464A
公开(公告)日：1949-06-28
申请号：US2102348
申请日：1948-04-14
申请人： GEORGE CABLE RICHARD
发明人： GEORGE CABLE RICHARD
IPC分类号： E21D15/00 , E21D15/46 , E21D15/51
CPC分类号： E21D15/465 , E21D15/005 , E21D15/512

5. 发明申请

US20140072374A1 SUPPORT PROP 审中-公开
标题翻译：支持建议
公开(公告)号：US20140072374A1
公开(公告)日：2014-03-13
申请号：US13651926
申请日：2012-10-15
申请人： ELBROC MINING PRODUCTS (PTY) LTD
发明人： Grant ROACH , Graeme CHALMERS
IPC分类号： E21D15/51 , E21D15/44
CPC分类号： E21D15/512 , E21D15/43 , E21D15/44
摘要： A support prop which includes telescopically interengaged inner and outer tubular members, a one-way valve for introducing pressurized liquid into a volume inside at least one of the members, a pressure relief valve for releasing liquid from the volume when the liquid pressure in the volume exceeds a predetermined value and a number of wedges which are located between opposing surfaces of the tubular members and which are engaged with one member and which deform the inner member when telescopic yielding action of the members takes place.
摘要翻译：包括可伸缩地相互接合的内管状构件和外管状构件的支撑支撑件，用于将加压液体引入至少一个构件内的容积内的单向阀，当容积中的液体压力时释放液体的压力释放阀超过预定值和多个楔形件，其位于管状构件的相对表面之间并且与一个构件接合并且当构件的伸缩屈服作用发生时使内部构件变形。

6. 发明授权

US4597557A Hydraulically-controlled non-return valve 失效
标题翻译：液压控制止回阀
公开(公告)号：US4597557A
公开(公告)日：1986-07-01
申请号：US708032
申请日：1985-03-01
申请人： Karl Krieger , Jochem Hartleb , Werner Reinelt
发明人： Karl Krieger , Jochem Hartleb , Werner Reinelt
IPC分类号： E21D15/51 , F16K31/124 , F15B13/042
CPC分类号： E21D15/512 , Y10T137/7771
摘要： An hydraulically-controlled non-return valve for the hydraulic cylinders of a walking mine-roof support is provided with a cylindrical valve-closing member which is spring-loaded in the closing direction and is guided in a valve case in a valve housing, the valve-closing member being sealed off therein by means of a seal. A space on one face of the valve-closing member is connected to a circulating duct by way of a stepped bore in the valve case, which bore contains a spring-loaded throttle member having through-flow bores of which one has a throttle-like reduced cross-section. During setting of the hydraulic cylinder pressurized fluid flows past the opened valve-closing member through inclined bores and, by way of the circulating duct, to the stroke space of the hydraulic cylinder. During retraction of the hydraulic cylinder, a control piston in the non-return valve is loaded at the same time as an annular space in the hydraulic cylinder. The control piston thus lifts the valve-closing member from a valve seat so that the pressurized fluid flows back in the reverse direction. The said space bounding the valve-closing member is connected to the throttle member in such a manner that the valve-closing member is not caused to oscillate by the pressurized fluid flowing back during retraction of the hydraulic cylinder.
摘要翻译：用于行走式矿顶支撑件的液压缸的液压控制止回阀设置有一个圆柱形的阀关闭构件，其在关闭方向上弹簧加载并且在阀壳体中被引导到阀壳体中，阀关闭件通过密封件密封在其中。阀关闭件的一个表面上的空间通过阀壳中的阶梯孔连接到循环管道，该孔包含弹簧加载的节流件，其具有一个具有节流阀的通流孔减少截面。在液压缸的设定期间，加压流体通过倾斜孔流过打开的阀关闭构件，并且通过循环管道流到液压缸的行程空间。在液压缸回缩期间，止回阀中的控制活塞与液压缸中的环形空间同时加载。因此，控制活塞因此将阀关闭部件从阀座提升，使得加压流体沿相反方向流回。围绕阀关闭构件的所述空间以节流构件连接，使得阀闭合构件不会由于在液压缸回缩期间向后流动的加压流体而振荡。

7. 发明授权

US3776098A Control arrangements for mine roof support props 失效
标题翻译：矿山屋顶支援计划的控制安排
公开(公告)号：US3776098A
公开(公告)日：1973-12-04
申请号：US3776098D
申请日：1972-09-15
申请人： GEWERK EISENHUETTE WESTFALIA
发明人： BEHRENS V , WEIRICH W , ROSENBERG H
IPC分类号： E21D15/51 , F15B13/042
CPC分类号： E21D15/512
摘要： A control arrangement for a mine roof support prop which arrangement has a setting valve which can connect the working chamber of the prop to a pressure fluid source to extend the prop or to a storage vessel to retract the prop. A further valve device incorporates a slide valve which is automatically moved against the force of a spring when the prop is set and the pressure in the working chamber reaches the pressure of the source to connect a further pressure fluid source to the working chamber. The further source supplies fluid at a higher pressure than the first source and the valve device has a further spring-loaded slide valve which opens to effect closure of the first slide valve when the pressure in the working chamber reaches the pressure of the further source.
摘要翻译：一种用于矿山屋顶支撑支架的控制装置，该装置具有可将支柱的工作室连接到压力流体源的定位阀，以将支柱或存储容器延伸以缩回支柱。一个另外的阀装置包括一个滑动阀，该滑阀在固定支架时克服弹簧的力自动移动，并且工作室中的压力达到源的压力，以将另外的压力流体源连接到工作室。

8. 发明授权

US3422864A Self-locking connector for fluid transfer 失效
标题翻译：用于流体传输的自锁式连接器
公开(公告)号：US3422864A
公开(公告)日：1969-01-21
申请号：US3422864D
申请日：1966-12-19
申请人： ALLINQUANT FERNAND ST
发明人： ALLINQUANT FERNAND STANISLAS
IPC分类号： E21D15/51 , E21D15/58 , E21D15/59 , F16L17/035 , F16L37/02 , F16L37/06 , B65B1/04 , F16L37/28 , F17C5/00
CPC分类号： F16L17/035 , E21D15/512 , E21D15/58 , E21D15/586 , F16L37/025 , F16L37/06 , Y10T137/87925

9. 发明授权

US2976883A Relief valves 失效
标题翻译：泄压阀
公开(公告)号：US2976883A
公开(公告)日：1961-03-28
申请号：US72467758
申请日：1958-03-28
申请人： DOWTY MINING EQUIPMENT LTD
发明人： MICHAEL FRYE COLIN
IPC分类号： E21D15/51 , F16K17/04
CPC分类号： F16K17/0406 , E21D15/512 , Y10T137/7928 , Y10T137/7934

10. 发明授权

US2445334A Hydraulic valve 失效
标题翻译：液压阀
公开(公告)号：US2445334A
公开(公告)日：1948-07-20
申请号：US50844443
申请日：1943-10-30
申请人： PAGE HERBERT E
发明人： PAGE HERBERT E
IPC分类号： B66F3/42 , E21D15/51 , F16K15/18
CPC分类号： E21D15/512 , B66F3/42 , F16K15/18 , Y10T137/7774 , Y10T137/7842 , Y10T137/8704

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