Pressure vessel seal
    261.
    发明授权
    Pressure vessel seal 失效
    压力容器密封

    公开(公告)号:US3695482A

    公开(公告)日:1972-10-03

    申请号:US3695482D

    申请日:1971-06-14

    Applicant: LUMMUS CO

    Inventor: SMITH COLIN

    CPC classification number: B01J3/03 F16J15/0881

    Abstract: A pressure vessel including a sealing structure for the cover which comprises a triangularly-shaped gasket in sealing engagement with a curved shoulder on the cover, a gasket engaging surface of the vessel wall and a backing ring positioned between the gasket and a key-ring located in a groove in the vessel wall.

    Abstract translation: 一种压力容器,包括用于盖的密封结构,其包括与盖上的弯曲肩部密封接合的三角形垫圈,容器壁的垫圈接合表面和位于垫圈和键环之间的背衬环 在血管壁的凹槽中。

    Vacuum seal-off valve tool
    262.
    发明授权
    Vacuum seal-off valve tool 失效
    真空密封阀工具

    公开(公告)号:US3623206A

    公开(公告)日:1971-11-30

    申请号:US3623206D

    申请日:1970-01-07

    Abstract: A VALVE TOOL FOR REMOVING AND INSTALLING THE CAP PORTION OF A FITTING ATTACHED TO A CONTAINER OR VACUUM SYSTEM WHILE THE CONTAINER OR SYSTEM IS BEING EVACUATED. THE BELL-SHAPED BODY OF THE VALVE POSITIONS OVER THE PUMPDOWN FITTING DURING VACUUM PUMPING THEREOF. A SOCKET WRENCH ENCLOSED WITHIN THE VALVE BODY ENGAGES THE CAP PORTION OF THE FITTING FOR INSTALLATION OR REMOVAL THEREOF BY MANUAL OPERATION OF A HANDLE OUTSIDE OF THE VALVE BODY. A SHAFT EXTENDING THROUGH A SEAL IN THE VALVE BODY, CONNECTS THE SOCKET WRENCH TO THE HANDLE. A PORT LOCATED IN THE VALVE BODY PROVIDES PASSAGE MEANS FOR EVACUATING GASES FROM THE SYSTEM OR CONTAINER.

    Furnace sealing door
    263.
    发明授权
    Furnace sealing door 失效
    FURNACE密封门

    公开(公告)号:US3554144A

    公开(公告)日:1971-01-12

    申请号:US3554144D

    申请日:1969-07-09

    Inventor: MESCHER HAROLD E

    CPC classification number: B01J3/03 C21D9/0006 F16J13/22

    Abstract: A sealing door for heat-treating furnaces having a piston and cylinder arrangement that not only raises and lowers the door but also moves the door outwardly slightly upon opening to protect the door seal during the vertical movement of the door and also presses the door against the furnace upon closure to seal the furnace against leakage of internal vacuum or pressure.

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