Patent ID: 7311062
Filing Date: 2007-12-25
Classification: A01J

Abstract:
1. A milking installation comprising: a vacuum pump having a suction side and an exhaust side; a vacuum equalization tank connected to the suction side of the vacuum pump by a first pipe; at least one pulsator connected to the vacuum equalization tank by a second pipe; at least one milking device attachable to an animal to be milked during use of the milking installation and connected to the at least one pulsator by a pulse hose; and a vacuum control valve that is attached to the vacuum equalization tank and that admits ambient air through a diffuser into the interior of the vacuum equalization tank to control the level of vacuum in the vacuum equalization tank, the diffuser projecting into the interior of the vacuum equalization tank and reducing the flow velocity of the admitted ambient air to thereby reduce noise associated with the ambient air flow.