Patent ID: 8689829

Claim:
A fluid flow monitor including: a diverted fluid conduit elevated at an angle from the horizontal, including a magnet adapted to be displaced within the diverted fluid conduit when there is fluid flow therethrough, and to return to a resting position when there is no fluid flow through the diverted fluid conduit, to detect a leak downstream of the fluid flow monitor; a first valve located within the diverted fluid conduit and arranged downstream of a second valve; the second valve including a hole through its body adapted to divert a small amount of fluid flow from a fluid supply to the diverted fluid conduit when the first valve is open and the second valve is closed; an electric circuit including a power supply; a magnetic sensor switch, located adjacent the diverted fluid conduit at a predetermined position; and a timer; wherein when the magnet is displaced to the predetermined position, the magnetic sensor switch closes the electric circuit activating the timer such that if the magnetic sensor switch remains closed for a period of time, the timer closes the first valve which, in turn, closes the second valve to stop a leak downstream of the fluid flow monitor.