Fluid flow control valves
    1.
    发明授权
    Fluid flow control valves 失效
    流体流量控制阀

    公开(公告)号:US4473091A

    公开(公告)日:1984-09-25

    申请号:US441932

    申请日:1982-11-15

    申请人: Derek Stoves

    发明人: Derek Stoves

    摘要: A fluid flow control valve has a body enclosing a transfer passageway whose bounding surface is profiled to provide streamline flow conditions. The passageway is constricted by means of a piston-like valve moving transverse to the direction of fluid flow. A profiled shield protects the valve from direct impingement of fluid.

    摘要翻译: 流体流量控制阀具有包围传送通道的主体,其传送通道的边界表面被成型以提供流线条件。 通道通过活塞式阀门横向于流体流动方向而收缩。 异型屏蔽保护阀不会直接冲击流体。

    Apparatus for bending plastic pipe
    2.
    发明授权
    Apparatus for bending plastic pipe 失效
    弯管塑料管的设备

    公开(公告)号:US5580589A

    公开(公告)日:1996-12-03

    申请号:US244790

    申请日:1994-06-13

    摘要: The apparatus comprises a frame having a die pivotally connected to it at one end and anchorage means pivotally connected to it at the other end. The anchorage means carries a first roller. A second roller is adjustable transverse to the frame. A pipe pusher is integral with the die. The frame has adjustable legs to set the angle of the fame. A plastic pipe is pulled through the die and through the host pipe and is bent between the first roller, the second roller and the die. The frame fully contains the reactions arising owing to the bending of the pipe.

    摘要翻译: PCT No.PCT / GB93 / 02192 Sec。 371日期1994年6月13日 102(e)日期1994年6月13日PCT 1993年10月25日PCT公布。 公开号WO94 / 10496 日期1994年5月11日该设备包括具有在一端枢轴连接的模具的框架和在另一端枢轴连接到其上的锚固装置。 锚固装置承载第一辊。 第二个辊子可以横向于框架调节。 管道推动器与模具是一体的。 框架具有可调节的腿部,以设定名望的角度。 塑料管被拉过模具并通过主管,并在第一辊,第二辊和模之间弯曲。 框架完全包含由于管道弯曲而产生的反应。

    Method of installing pipes
    3.
    发明授权
    Method of installing pipes 失效
    管道安装方法

    公开(公告)号:US06171435B2

    公开(公告)日:2001-01-09

    申请号:US08952448

    申请日:1998-02-23

    IPC分类号: B08B902

    摘要: A steel service pipe is connected to a main by a tee. A flexible assembly is inserted through the open end of the pipe and through the tee into the main. The flexible assembly includes a section of lower stiffness and a ball and socket connection of even lower stiffness at its leading end. The ball is connected to a weight. The weight falls down on entering the tee and creates a turning moment on the assembly. A plastic pipe is inserted through the open end of the pipe over the assembly and is inserted through the tee into the main. The pipe has a corrugated leading end which is more flexible than the remainder of the pipe and has a tapered nose terminating in a cylindrical mouth which enters an aperture in a liner in the main.

    摘要翻译: 钢管服务管由主体连接到主体。 柔性组件穿过管道的开口端并穿过发球台插入主体。 柔性组件包括较低刚度的部分和在其前端具有甚至更低刚度的球窝连接。 球连接到重量。 重量在进入发球台时下降,并在组装上创造转弯时刻。 塑料管穿过组件的开口端插入组件中,并通过三通插入主体。 该管具有波纹的前端,其比管的其余部分更柔性,并且具有终止于圆柱形口中的锥形鼻端,该圆柱形口进入主衬里中的孔。

    Fluid container with venting means
    5.
    发明授权
    Fluid container with venting means 失效
    带排气装置的流体容器

    公开(公告)号:US4465202A

    公开(公告)日:1984-08-14

    申请号:US422031

    申请日:1982-09-23

    CPC分类号: F16J13/12 F16J13/24

    摘要: A sealable pressure vessel 5 has a closure member 8 held on by means of a bayonet fixing member which is movable between two positions while retaining the mechanical linkage between the vessel 5 and the closure member 8 forming a container 1. The bayonet fixing comprises a vessel lug 19 which co-operates with a stepped slot 18 in a locking ring 9 secured to the closure member. In one position of the lug 19 in the slot 18 the closure member is sealed on the vessel and the container is closed to atmosphere while in another position the seal is broken and the container is open to atmosphere. The closure member 8 incorporates a sliding valve 29 which has a spring urged piston 32 carrying a locking pin 33 to lock the lug 19 within the slot 18 when the container is closed to atmosphere. The piston 32 can vent the container to atmosphere when the closure member is sealed to the vessel if the piston 32 is raised since it then connects the interior of the container to atmosphere via a chamber 48 and two ports 49 and 51. Raising the piston 32 disengages the locking pin 33 from the lug 19 so that the closure member 8 can be removed from the vessel 5.

    摘要翻译: 可密封的压力容器5具有通过卡口固定构件保持的封闭构件8,该卡口固定构件可在两个位置之间移动,同时保持容器5和形成容器1的封闭构件8之间的机械连接。卡口固定件包括容器 凸耳19与固定在封闭构件上的锁定环9中的台阶槽18配合。 在插槽18中的凸耳19的一个位置中,封闭构件被密封在容器上,并且容器关闭到大气,而在另一位置,密封件被破坏并且容器对大气敞开。 封闭构件8包括滑动阀29,滑阀29具有弹簧推动活塞32,该活塞32承载锁定销33,以在容器关闭到大气时将凸耳19锁定在槽18内。 如果活塞32升高,则活塞32可以将封闭构件密封到容器时将容器排放到大气中,因为它然后经由腔室48和两个端口49和51将容器的内部连接到大气。提升活塞32 使锁定销33与凸耳19脱开,从而可以将封闭构件8从容器5中取出。

    Self-centering suspension for in-pipe use
    6.
    发明授权
    Self-centering suspension for in-pipe use 失效
    用于管内使用的自定心悬架

    公开(公告)号:US5971404A

    公开(公告)日:1999-10-26

    申请号:US952447

    申请日:1998-02-12

    申请人: Derek Stoves

    发明人: Derek Stoves

    CPC分类号: F16L55/28 F16L55/44

    摘要: A self-centering suspension for use in supporting a vehicle or vehicles intended to travel in a pipeline includes a body and two sets of three wheels spaced apart along the length of the body. Each wheel is mounted on a lever arm biased by torsion springs against the inner surface of the pipeline. Each lever arm has a stub arm which is eccentrically arranged relatively to a rotary joint in the form of a pin, and the stub arm slidingly engages a circumferential groove in a ring. Each ring slides on the body. A set of three wheels are thus constrained to move inwards and outwards together.

    摘要翻译: PCT No.PCT / GB96 / 01200 Sec。 371日期1998年2月12日 102(e)1998年2月12日PCT PCT 1996年5月20日PCT公布。 WO96 / 37726 PCT公开号 日期1996年11月28日一种用于支持车辆或旨在在管道中行驶的车辆的自定心悬架包括主体和沿着身体长度间隔开的两组三个车轮。 每个车轮安装在杠杆臂上,扭力弹簧抵靠管道内表面偏置。 每个杠杆臂具有相对于销形式的旋转接头偏心布置的短臂,并且短臂与环中的周向槽滑动地接合。 每个环在身体上滑动。 因此,一组三个轮子被限制为一起向内和向外移动。

    Apparatus for in-pipe use
    7.
    发明授权
    Apparatus for in-pipe use 失效
    用于管道内使用的设备

    公开(公告)号:US5951221A

    公开(公告)日:1999-09-14

    申请号:US983062

    申请日:1998-03-13

    申请人: Derek Stoves

    发明人: Derek Stoves

    IPC分类号: F16L55/28 B23C1/30

    摘要: Apparatus for cutting a hole through a plastic liner in a gas or other main comprises a body forming module of a train of modules adapted to travel through the main. The body has a radially movable platform carrying a cutter. The platform has four cams engaging four cams pivotally mounted on tie-bars. Advancing movement of the platform pushes the cams outwardly causing support legs to move outwardly and to cause four slave legs carried by the support legs to engage the plastic liner. Further advancing movement of the platform causes the cutter to engage the liner and also holds the support legs in their advanced position as noses on the cams traverse the faces of the cams.

    摘要翻译: PCT No.PCT / GB96 / 01389 371日期1998年3月13日 102(e)1998年3月13日PCT PCT 1996年6月10日PCT公布。 公开号WO96 / 41694 日期1996年12月27日用于通过气体或其它主体中的塑料衬垫切割孔的装置包括适于穿过主体的模块列车体形成模块。 主体具有可移动的平台,承载切割器。 平台具有四个凸轮,四个凸轮枢转地安装在连接杆上。 平台的推进运动将凸轮向外推动,从而使支撑腿向外移动,并使由支撑腿承载的四个从动腿接合塑料衬套。 平台的进一步前进运动导致切割器接合衬套,并且还将支撑腿保持在其前进位置,因为凸轮上的鼻部穿过凸轮的表面。

    Regulator installation for fluid transmission or distribution systems
    8.
    发明授权
    Regulator installation for fluid transmission or distribution systems 失效
    用于流体输送或分配系统的调节器安装

    公开(公告)号:US4311167A

    公开(公告)日:1982-01-19

    申请号:US107919

    申请日:1979-12-28

    IPC分类号: F16K27/00

    摘要: A regulator installation, for controlling the pressure and/or flow of gas in a gas transmission or distribution system, comprising a compact module (10) having an inlet (32) and an outlet (33) adapted to be fitted in a pipeline (1) and containing within its outer shell (21,22,23) a removable assembly secured by locking means (29,30) and which carries the essential elements (2 to 9 and 43 to 45) of the regulator installation such that the gas flow path from the inlet (32) passes through the elements (2 to 5) to the outlet (33). The shell is provided with a removable cover (23) for gaining access to the control elements (6 to 9 and 43 to 45) and to the locking means (30) for enabling the assembly (31) to be removed for servicing and replacement.FIG. 2 is suggested as the drawing to accompany the Abstract.

    摘要翻译: 一种用于控制气体传输或分配系统中的气体的压力和/或流量的调节器装置,包括具有适于装配在管道(1)中的入口(32)和出口(33)的紧凑模块(10) )并且在其外壳(21,22,23)内容纳有由锁定装置(29,30)固定并且承载调节器装置的基本元件(2至9和43至45)的可移除组件,使得气流 从入口(32)的路径通过元件(2至5)到出口(33)。 壳体设置有用于进入控制元件(6至9和43至45)的可拆卸盖(23)和锁定装置(30),用于使组件(31)能够被移除以进行维修和更换。 图。 附图2作为附图提出。