Pneumatic actuator, in particular for valves

Expansible chamber devices – Displacement control of plural cylinders arranged in... – Adjustment means includes external axially extending...

Reexamination Certificate

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Details

C092S136000, C092S138000, C251S058000, C251S285000, C251S288000

Reexamination Certificate

active

08056466

ABSTRACT:
The invention concerns pneumatic actuators for valves comprising a body closed by head flanges, two pistons moving in said body in opposite directions, an output shaft that turns actuated by the pistons, and a stop device on each head flange to limit the stroke of the pistons when they move away from each other towards the head flanges. On at least one side of the actuator body an adjusting device (22) is provided which includes stop means (26, 27) at varying distances from each other in a direction parallel to the movement of the pistons and arranged in a position to intercept and limit the stroke of the pistons when the latter move towards each other.

REFERENCES:
patent: 3148595 (1964-09-01), Looney
patent: 3537358 (1970-11-01), Bunyard
patent: 3672260 (1972-06-01), Gachot et al.
patent: 4260128 (1981-04-01), Tito
patent: 4564169 (1986-01-01), Nordlund
patent: 4566670 (1986-01-01), Nordlund
patent: 4651626 (1987-03-01), Messina
patent: 4949936 (1990-08-01), Messina
patent: 4970944 (1990-11-01), Killian
patent: 5014598 (1991-05-01), Champagne
patent: 5325888 (1994-07-01), Stary
patent: 5842404 (1998-12-01), Triado Isern et al.
patent: 6371439 (2002-04-01), Trevisan
patent: 0 344 126 (1989-11-01), None
patent: 0 976 931 (2000-02-01), None
patent: WO 84/03129 (1984-08-01), None
patent: WO 2007/057927 (2007-05-01), None

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