Animal husbandry – Milkers – Milking station arrangements; e.g. – parlors
Patent
1981-08-03
1983-08-30
Swiatek, Robert P.
Animal husbandry
Milkers
Milking station arrangements; e.g., parlors
119 1408, A01J 700, A01J 500
Patent
active
044010559
ABSTRACT:
An automated milking system includes galvanized metal stall structures, and in a parlor system a galvanized metal grate for the hind feet of a cow. An extraneous voltage protective unit is provided to prevent initiating electrical current flow in the cow because of small extraneous voltages which may be created in the milking system. The milking machines include a stainless steel claw and a plastic transfer hose to a similar steel collection pipe. A stainless steel pipe is inserted in the hose. A voltage compensator/sensor is coupled to the claw and the pipe insert to monitor the claw and generate a compensating voltage applied to the milking system to neutralize, compensate or otherwise effectively eliminate current flow through the cow at the udder. An A.C. signal monitor and a total signal monitor are coupled to the circuit to monitor and indicate stray alternating current voltages in the system, to monitor and indicate the sum of D.C. voltages and A.C. voltages in the system. A limit control may detect a voltage along a selected limit and disconnect the protective apparatus and indicate such condition.
REFERENCES:
patent: 3991716 (1976-11-01), Reisgies
patent: 4000718 (1977-01-01), Brown
patent: 4188910 (1980-02-01), Hocker
patent: 4355595 (1982-10-01), Ackerman et al.
Street William L.
Summers James W.
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