Valve lock

Details Valve lock Valve lock

E - Fixed Constructions

05

B

70/17

E05B 73/00 (2006.01)

Patent

CA 1287984

VALVE LOCK Abstract of the Disclosure A valve lock for a tank truck comprising an elongated straight length of strap metal having a shorter leg at each end projecting laterally in the same direction therefrom. The shorter leg at one end is secured to an upstream por- tion of the valve body which connects to the conduit lead- ing from the tank of the truck, and the shorter leg at the other end is releasably secured to the rotary valve opera- tor or valve handle to prevent its movement from the valve closed position to the valve open position until released. The lock device is positioned in such a way that the elong- ated portion of strap metal bears firmly against a portion of the valve body, such as its outlet spout, to further re- strain rotation of the valve operator or valve handle in the direction of rotation which would open the valve. Such restraint substantially lessens the forces that would other- wise be transmitted to the short leg of the device and the means by which it is secured to an upstream portion of the valve body in the event someone attempts to apply force to open the valve and break the lock.

537931

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