Patent ID: 6935364

Claim:
A valve comprising a housing having an inlet and spaced therefrom an outlet, a passageway extending between the inlet and outlet, and means located in the passageway for controlling the flow of a fluid between the inlet and the outlet, the means including a valve assembly movable in a direction along a longitudinal axis of a co-operating valve seat between a first open position spaced from the co-operating valve seat and a second closed position at which the valve assembly sealingly engages the valve seat, in which magnetic means is provided for biasing the valve assembly towards the second closed position; wherein at least a portion of the valve assembly is in the form of or incorporates a permanent magnet and a further magnet is located adjacent the valve seat, and said valve assembly is configured to transition between said second closed position and said first open position based on pressure differential arising from said fluid between said inlet and said outlet, and wherein the valve assembly depends from a valve cap made from magnetic material.