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US 5,487,359 AGranted
Low amperage electronic milk level detector
OwnerMichel Montreuilinventor
Life of this patent
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OwnerMichel Montreuilinventor
Estimating the term…
An electric device is adapted to detect the level of liquid in a receptacle in view of controlling this level of liquid. The receptacle is installed on a milking system for accumulating either milk drawn through piping of the milking system from at least an animal being milked or water during a washing operation of that piping. At least two electrodes are mounted in the receptacle. When the level of liquid reaches a predetermined level, the two electrodes are electrically interconnected and a detecting current flows through the liquid between the two electrodes. The detecting current has a frequency situated within a frequency range substantially higher than 60 Hz, in which the animal being milked has a lower sensitivity to electric current. The higher frequency of the detecting current also reduce a capacitive impedance formed by the two electrodes and the water during the washing operation of the milking system to thereby enable a low-intensity detecting current to be established both in milk and water with low-amplitude voltages applied to the electrodes.
An electric device for detecting the level of milk in a receptacle in view of controlling said level of the milk, said receptacle being installed in a milking system for accumulating milk drawn through piping of the milking system from at least one animal being milked, and said receptacle comprising at least two electrodes mounted therein to contact milk when a predetermined level of milk is reached in the receptacle, said milk level detecting device comprising:
An electric device for detecting the level of liquid in a receptacle in view of controlling said level of the liquid, said receptacle being installed in a milking system for accumulating either milk drawn through piping of the milking system from at least one animal being milked or water during a washing operation of the milking system to remove milk residue from the inner surface of said piping, said receptacle comprising at least two electrodes mounted therein to contact liquid when a predetermined level of liquid is reached in the receptacle, said level detecting device comprising:
An electric device for detecting the level of liquid in a receptacle in view of controlling said level of the liquid, said receptacle being installed in a milking system for accumulating either milk drawn through piping of the milking system from at least one animal being milked or water during a washing operation of the milking system to remove milk residue from the inner surface of said piping, said receptacle comprising at least first and second electrodes mounted therein to contact liquid when a predetermined level of liquid is reached in the receptacle, said level detecting device comprising:
Dependencies are inferred from the claim text.