Gate valve with replaceable liner
    1.
    发明授权
    Gate valve with replaceable liner 失效
    闸阀具有更换内衬

    公开(公告)号:US3993092A

    公开(公告)日:1976-11-23

    申请号:US614350

    申请日:1975-09-17

    申请人: Robert C. Still

    发明人: Robert C. Still

    IPC分类号: F16K3/02 F16K27/04

    摘要: A gate valve having a replaceable one piece bore and chest liner enclosed within a pair of mirror image castings is disclosed. The gate is cast and enveloped within molded material to cooperate with the liner in a sealing relationship.

    摘要翻译: 公开了一种具有可替换的一个孔和一个封装在一对镜像铸件内的胸罩的闸阀。 门被浇铸并包封在模制材料内以与密封关系中的衬里配合。

    Removable operator for gate valves
    2.
    发明授权
    Removable operator for gate valves 失效
    闸阀可移动操作器

    公开(公告)号:US4231389A

    公开(公告)日:1980-11-04

    申请号:US942768

    申请日:1978-09-15

    IPC分类号: F16K31/54 F16K43/00

    摘要: A pedestal extends upwardly from the body of a gate valve housing in a straddling relationship to the gate. An operator, detachably attachable to the pedestal, includes a hand wheel operating through a pinion gear to impart translatory movement to a vertically oriented rack. A clevis is disposed at the lower extremity of the rack for attachment through a pin to the upper end of the gate. A removable pin is employed to secure the gate, in either a raised or a lowered position, to the pedestal and to maintain the gate in position after removal of the operator.

    摘要翻译: 基座从门阀壳体的主体向上延伸,与闸门成跨度关系。 可拆卸地附接到基座的操作者包括通过小齿轮操作的手轮,以向垂直定向的机架赋予平移运动。 U形夹设置在齿条的下端,用于通过销附接到门的上端。 使用可拆卸的销来将门在升高或降低的位置固定到基座,并且在移除操作者之后将门保持在适当的位置。

    Biasable seal for gate valves
    3.
    发明授权
    Biasable seal for gate valves 失效
    闸阀可靠密封

    公开(公告)号:US4026517A

    公开(公告)日:1977-05-31

    申请号:US667599

    申请日:1976-03-17

    申请人: Robert C. Still

    发明人: Robert C. Still

    IPC分类号: F16K3/02 F16K27/04

    摘要: A selectively biased seal for a gate, which gate is translatable within a one piece liner of a gate valve, is disclosed. Lever means for operating the gate and oriented with or normal to the direction of flow through the gate valve are also described.

    摘要翻译: 公开了一种用于闸门的选择性偏压的密封件,该闸门可在闸阀的单件衬管内平移。 还描述了用于操作门并且定向为或垂直于通过闸阀的流动方向的杠杆装置。