Vacuum gate valve

Valves and valve actuation – With means to increase head and seat contact pressure – Gate valve

Reexamination Certificate

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Details

C251S084000, C251S087000, C251S158000, C251S326000, C251S329000, C251S364000, C251S293000

Reexamination Certificate

active

07134642

ABSTRACT:
The invention provides a vacuum gate valve for closing off an opening. The vacuum gate valve can have a valve plate that can be turned so that the alignment of the valve plate will adapt to a valve seat when the valve plate is pressed against the valve seat.

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patent: 2005/0139799 (2005-06-01), Tomasch

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