Remotely controlled lockout device

Details Remotely controlled lockout device Remotely controlled lockout device

2011-08-23

2011-08-23

Rivell, John (Department: 3753)

Valves and valve actuation

With means for blocking or disabling actuator

Attachments

C251S110000, C251S285000

Reexamination Certificate

active

08002236

ABSTRACT:
A remotely controlled lockout device for an in-line gas flow control valve has a control shaft adapted to be operatively connected to a gas flow control valve and operable between a gas flow control valve open and closed position and a rotatable lock member operatively connected to the control shaft and rotatable between a lock member unlocked position in which the control valve is operable between gas flow control valve open and closed positions and a locked position in which the control valve is locked in a gas flow control valve closed position.

REFERENCES:
patent: 1276482 (1918-08-01), Bowen
patent: 1831021 (1931-11-01), Markel
patent: 3935103 (1976-01-01), Disque et al.
patent: 5813655 (1998-09-01), Pinchott et al.
patent: 6843083 (2005-01-01), Smith et al.
patent: 7117884 (2006-10-01), Shuter

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