Furnace sealing door
    1.
    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.

    Free floating flight in a retort and method
    7.
    发明授权
    Free floating flight in a retort and method 失效
    免费浮动飞行在蒸馏和方法

    公开(公告)号:US3927959A

    公开(公告)日:1975-12-23

    申请号:US50373174

    申请日:1974-09-06

    CPC classification number: F27B7/18

    Abstract: A pair of helical strips for holding a flight adjacent the interior surface of a cylindrical heating retort. The flight is movable between the helical strips relative to the interior surface of the retort to prevent the occurrence of thermal stress cracking in the retort and/or the flight adjacent their interface.

    Abstract translation: 一对螺旋条,用于保持与圆柱形加热蒸馏器内表面相邻的飞行。 飞行物可以在螺旋状条之间相对于蒸馏器的内表面移动,以防止蒸馏器和/或其界面附近的飞行中发生热应力开裂。

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