MILKING PROCESS CONTROL SYSTEM Russian patent published in 1995 - IPC

FIELD: agricultural engineering. SUBSTANCE: as the system is turned on, pneumatic pulsation from pulsator 3 enters the control chamber of air-operated valves 17 and further through outlet chambers of air-operated valves 17 the pulses enter air-operated chambers 22 of teat cups 9. The pneumatic pulses first enter upper chambers 22 and then the lower ones. As a result, putting teat cups 9 on the udder teats is made more difficult. In order to put any teat cup 9 on the udder teat the milking unit operator has to use a finger to cut off the flow of air from the hole of appropriate air button 13. Air pressure in control chambers of air-operated valves 17 becomes higher making them operate to open the outlet chambers of air-operated valves 17 to vacuum source 1. Pneumatic chambers 22 discontinue operation, and the teat is free to enter flexible tube 20. Teat cup 9 is put on the teat. EFFECT: independent control of operation of the teat cups; higher efficiency. 2 dwg