Patent ID: 6439156
Filing Date: 2002-08-27
Classification: A01J

Abstract:
A milking system comprising a source of vacuum applying vacuum through a conduit system to a plurality of milking clusters, each cluster comprising a plurality of teat cups supplying milk to a claw in response to pulsation vacuum controlled by a pulsator in said conduit system, said conduit system having a fire portion upstream of said pulsator and applying vacuum from said source of vacuum to said pulsator, said conduit system having a second portion downstream of said pulsator and applying pulsation vacuum to said teat cups, the vacuum in said first portion of said conduit system being subject to fluctuation due to said pulsation vacuum in said second portion of said conduit system, a vacuum fluctuation suppression filter in said first portion of said conduit system and tuned to attenuate vacuum fluctuation due to said pulsator, wherein said vacuum fluctuation suppression filter comprises an auxiliary vacuum conduit pipe communicating with said first portion of said conduit system and tuned to attenuate said vacuum fluctuation due to said pulsator, and wherein said auxiliary vacuum conduit pipe has a length calibrated according to frequency of said vacuum fluctuation due to said pulsator.