Patent ID: 7484643
Filing Date: 2009-02-03
Classification: B67D,F25D

Abstract:
1. A liquid dispensing valve, comprising: a body portion hermetically mounted to a free end of a discharge nozzle of a reservoir and defining a seat; a rod mounted through the body portion, carrying a seal and being selectively displaced between a closing position in which the seal is seated on the seat, blocking the discharge of liquid from the reservoir, and a maximum opening position, in which the seal is spaced from the seat, allowing the discharge of the liquid; a spring means mounted to the body portion and forcing the rod to the closing position; a cap portion hermetically affixed to the body portion downstream the seat and around the rod, and internally defining a discharge chamber; and an elongated spout having a discharge end turned downwards, said cap portion and elongated spout being configured and dimensioned so that when the seat is closed by the seal, the mass of residual liquid contained in the discharge chamber forms, gravitationally inside the latter, a vacuum which is sufficient to maintain said mass of liquid retained upstream the discharge end of the elongated spout.