Optical milk flow detector and vacuum shutoff for milker

Details Optical milk flow detector and vacuum shutoff for milker Optical milk flow detector and vacuum shutoff for milker

1987-08-21

1988-07-12

Swiatek, Robert P.

Animal husbandry

Milkers

With automatic control

119 1416, A01J 700

Patent

active

047562749

ABSTRACT:
An infrared light sensor outside the milk flow path is connected with an end of milking indicator. The light sensor is connected with a milk flow detector which actuates the indicator giving a visual or audible signal when milk flow ceases. Vacuum is shut off and the milker is retracted. Electrical power for the light source, light sensor and indicator circuit is derived from the milker pulsator signals.

REFERENCES:
patent: 3115116 (1963-12-01), Schilling et al.
patent: 3690300 (1972-09-01), Tonelli
patent: 3773016 (1973-11-01), Needham et al.
patent: 4190020 (1980-02-01), Tamas et al.
patent: 4331102 (1982-05-01), Olander
patent: 4344385 (1982-08-01), Swanson et al.
patent: 4347868 (1982-09-01), Scott
patent: 4385590 (1983-05-01), Mortensen

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