Patent ID: 7886942
Filing Date: 2011-02-15
Classification: B67D,F16K

Abstract:
1. A valve for a liquid dispensing system, comprising: a casing having an interior sidewall; a hollow dispensing pin positioned within the casing, the dispensing pin having a first end, a second end, an exterior surface, and an interior flow passage, the dispensing pin being movable relative to the casing; at least one radial dispensing passage from the interior flow passage through to the exterior surface at the first end of the dispensing pin; a first plunger disposed between the interior sidewall of the casing and the exterior surface of the dispensing pin and engaging both the interior surface of the casing and the exterior surface of the dispensing pin, the first plunger being movable relative to the casing and the dispensing pin while maintaining the dispensing pin stationary relative to the casing, the first plunger being movable between a closed position blocking any flow through the at least one radial dispensing passage and a first open position toward the second end of the dispensing pin spaced from the at least one radial dispensing passage, and the dispensing pin being movable relative to the casing between the closed position and a second open position in which the first end of the dispensing pin is moved outward from the first plunger; and means for biasing the first plunger toward a normally closed position.