HOSE COUPLING SAFETY DEVICE

摘要

A coupling hose locking device designed to lock shut camlock ears. It prevents the ears from being opened by an operator before the operator has shut the supply tank valve. Accordingly, the present device prevents spilling of fluid and eliminates the risk of the operator being injured by hot fluid spraying from the hose before the valve is shut. The device provides a rigid lock arm rotationally attached to the hose and extending beyond the opening of the hose adjacent at least one of the camlock ears and having at least one notch engageable with at least one post on the tank valve. Pressurization of the hose under fluid load displaces the rigid lock arm away from the tank valve to engage each notch with a corresponding post to prevent rotation of the rigid lock arm and opening of the camlock ears.