Quick release slide lock for vacuum valve

Details Quick release slide lock for vacuum valve Quick release slide lock for vacuum valve

1997-07-14

1998-08-11

Fox, John

Valves and valve actuation

Reciprocating valve

Gate

251367, F16K 300

Patent

active

057916322

ABSTRACT:
A quick release clamp mechanism (10) including a pair of slide lock plates (12, 14) for engaging a series of guide screws (32) extending down from a bonnet or end plate (16) and through openings in a valve body flange (18). Toggle clamps (40) releasably engage one of the guide screws (32') and thereby can slide the slide lock plates (12, 14) by pivoting of a toggle lever (76). Sliding of slide lock plates (12, 14) causes a neck down region of openings (34) in plates (12, 14) to capture the heads of guide screws (32) and clamp bonnet plate (16) to valve body flange (18).

REFERENCES:
patent: 4223868 (1980-09-01), Humes et al.
patent: 4251054 (1981-02-01), Baas
patent: 4917143 (1990-04-01), Grooms
patent: 5597184 (1997-01-01), Brenes et al.

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