Aerosol valve having means to shut off flow if valve is...

Details Aerosol valve having means to shut off flow if valve is... Aerosol valve having means to shut off flow if valve is...

B - Operations, Transporting

65

D

B65D 83/56 (2006.01) B65D 83/14 (2006.01)

Patent

CA 2124653

In an aerosol valve the flow path includes a compartment having an inlet into the compartment and a valve seat at the upper end of the compartment, a pocket is disposed downward from the seat opening, the pocket containing a gravity-responsive ball. When the valve is being used in dispensing and is tipped in a direction which brings the ball closer to the flow through the compartment, the ball becomes entrained in the fluid flow and flies up to seat on the valve seat to block it off, precluding further discharge. When the aerosol valve is released, a bypass raises the pressure inside the valve body so that the ball will fall away from the seat. The purpose is to avoid the escape of propellant which might occur in tipping if the lower end of the dip tube is exposed to the head space.

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