Patent ID: 6098648
Filing Date: 2000-08-08
Classification: A61H,Y10T

Abstract:
A water intake, comprising:a hollow body having a water inlet, a water outlet and a hollow interior communicating said inlet with said outlet;a vent extending from outside of said hollow body to a position in said hollow interior so as to allow communication of said hollow interior with the outside of said hollow body; anda shutter operable for movement between a rest position in which said hollow interior is in fluid communication with said vent and an operating position in which said shutter closes said vent off from said hollow interior, said shutter being constructed to be responsive to a flow of water from said inlet to said outlet to move to said operating position to close said vent until the flow of water falls below a threshold value, and to be responsive to the flow of water falling below the threshold value to move to said rest position so that said vent comes into fluid communication with said hollow interior.