Non-sliding vacuum gate valve

Details Non-sliding vacuum gate valve Non-sliding vacuum gate valve

1998-11-09

2000-07-04

Shaver, Kevin

Valves and valve actuation

With means to increase head and seat contact pressure

With positive reduction

251203, F16K 2500

Patent

active

060827068

ABSTRACT:
A non-sliding vacuum gate valve according to the present invention has a curved cam lead member provided to end of a valve rod, and a pair of rollers provided to a connection rod. The cam lead member and the rollers are engaged with each other and move relatively, so that vertical movement and slant movement of a valve plate and the valve rod are guided.

REFERENCES:
patent: 4470576 (1984-09-01), Schertler
patent: 4753417 (1988-06-01), Madocks et al.
patent: 5002255 (1991-03-01), Sawa et al.
patent: 5087017 (1992-02-01), Sawa et al.
patent: 5116023 (1992-05-01), Contin
patent: 5120019 (1992-06-01), Davis, Jr.
patent: 5626324 (1997-05-01), Nakamura et al.

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