Animal husbandry – Milkers – Methods of milking
Patent
1975-11-04
1977-07-12
Chamblee, Hugh R.
Animal husbandry
Milkers
Methods of milking
119 1408, 119 1418, A01J 700
Patent
active
040347133
ABSTRACT:
A system and method is disclosed that is particularly useful for milking of animals such as cows. The system includes a control unit to control functioning of a stimulator and a milking apparatus, including automatic termination of stimulation and milking, removal of the milking apparatus after milking, and rinsing (or sanitizing) and draining of the apparatus to ready the same for milking of another animal. A stimulator controlled by the control unit applies a warm liquid to one or more teats of the animal to be milked for a predetermined period of time to induce milk let down. After a valve has been placed in milking position to connect the milk line to the teat cups of the milking apparatus and the teat cups have been placed on the stimulated animal, milking of the animal is commenced and will continue until automatically or manually terminated. For automatic operation, the end of milking is sensed when the temperature of the milk being withdrawn from the animal falls below a predetermined temperature, after which the control unit causes retraction of the milking apparatus (utilizing a pulley and rope arrangement attached to the milking apparatus) and actuation of the milk valve (to relieve the vacuum and allow the milking apparatus to be automatically removed from the milked animal).
The milking apparatus is rinsed and/or sanitized by urging the valve to a rinse and drain position (or alternately to first a rinse and then to a drain position), after which the milking apparatus is ready for milking of another animal. A display unit is provided to indicate stimulation, and circuitry is also provided to indicate a high temperature, such as a sensed indication of fever in the animal. A digital readout display can also be provided to indicate the sensed temperature of the milked animal.
REFERENCES:
patent: 1851107 (1932-03-01), Moore et al.
patent: 3461845 (1969-08-01), Peterson
patent: 3554166 (1971-01-01), Bedden
patent: 3874337 (1975-04-01), Umbaugh et al.
patent: 3893422 (1975-07-01), Schnitzler et al.
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