Patent ID: 8056505
Filing Date: 2011-11-15
Classification: A01J

Abstract:
1. A milking liner for use with a dairy milk extraction system; the milking liner comprising: a barrel adapted to receive the teat of the dairy animal; a short milk tube having an inlet and an outlet; the short milk tube adapted to move milk from the barrel in a downstream direction from the inlet toward the outlet; a vent plug carried by the short milk tube; the vent plug having a vent plug body defining a vent passage; the vent passage being free of valve closures such that the vent passage remains continuously open; the vent plug body having an inner flange positioned inside the short milk tube; the inner flange having an upstream portion and a downstream portion; the upstream and downstream portions being defined with respect to the downstream direction of fluid flow within the milking liner; the vent passage having a vent passage outlet disposed inside the short milk tube when the vent plug is installed in the short milk tube; the inner flange of the vent plug body defining an outlet portion of the vent passage that terminates at the vent passage outlet; the outlet portion of the vent passage being angled downward from horizontal when the vent plug body is disposed horizontally; the vent passage having an inlet disposed outside the short milk tube when the vent plug is installed in the short milk tube; and the entire vent passage outlet being disposed in the downstream portion of the inner flange of the vent plug body; the upstream portion of the inner flange being free of any vent passage outlets.