Patent ID: 8002236
Filing Date: 2011-08-23
Classification: F16K,Y10T

Abstract:
1. A remotely controlled lockout device for an in-line gas flow control valve comprising: a housing; a control shaft within said housing adapted to be operatively connected to a gas flow control valve and operable between gas flow control valve open and closed positions; a rotatable lock member within said housing operatively connected to said control shaft and rotatable between a lock member unlocked position in which said control shaft is operable between gas flow control valve open and closed positions and a lock member locked position in which said control shaft is locked in said gas flow control valve closed position; biasing means attached to said lock member biasing said lock member toward said lock member locked position; a remotely controlled actuator including a receiver for receiving a signal from a remote location, the remotely controlled actuator being movable between a first state in which it engages said lock member to retain said lock member in said lock member unlocked position and a second state in which it disengages said lock member to enable said biasing means to rotate said lock member to said lock member locked position, wherein subsequent to the operation of the remotely controlled actuator and movement of the lock member to said lock member locked position, the lock member is retained in its lock member locked position either by engagement of the lock member by a lock member retainer or by reengagement of the remotely controlled actuator with the lock member.