Fast valve actuator and tool provided with same

Details Fast valve actuator and tool provided with same Fast valve actuator and tool provided with same

2006-10-03

2006-10-03

Look, Edward K. (Department: 3751)

Valves and valve actuation

With snap action

C251S079000, C166S332100

Reexamination Certificate

active

07114697

ABSTRACT:
The invention relates to a quick-acting valve actuator comprising:a driven member (31) driven by a drive device (35) suitable for causing the driven member (31) to travel along a stroke (C1) to a trigger position; andlocking-and-trigger means (41) co-operating with the driven member (31) and the actuator member (21) so that:during the stroke (C1), the actuator member (21) is stationary, and the driven member (31) is moving; andwhen the driven member (31) reaches the trigger position, the driven member (31) is held stationary, and the actuator member (21) is urged by prestress means (51) to open or close the valve.

REFERENCES:
patent: 3889751 (1975-06-01), Peters
patent: 4129184 (1978-12-01), Parker
patent: 5234057 (1993-08-01), Schultz et al.
patent: 5279363 (1994-01-01), Schultz et al.
patent: 5332035 (1994-07-01), Schultz et al.
patent: 5375658 (1994-12-01), Schultz et al.

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