PRESSURE SIGNALLING APPARATUS FOR TIRES

摘要

Apparatus having a bolt movable from a normally retracted position to a released signal operating position. A latch normally holds the bolt in the retracted position and a trigger arrangement controls the latch. An air gauging device, associated with a valve through which a tire is charged to a selected air pressure, is coupled to the trigger to operate same thereby actuating the latch and releasing the bolt when air pressure in the tire falls a predetermined amount below the selected level.