Cooling milk in an automatic milking system

Animal husbandry – Milkers – With automatic control

Reexamination Certificate

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Details

C119S014090

Reexamination Certificate

active

07089880

ABSTRACT:
Example embodiments of the present invention relate to methods and arrangements for cooling milk in a milk storage tank of an automatic milking system comprising (i) measuring an amount of extracted milk by a milk flow meter; (ii) determining a cooling need for milk stored or to be stored in the milk storage tank based on the amount of milk; (iii) measuring a quantity indicative of a temperature of an inner surface area of a bottom portion of the milk storage tank; and cooling the bottom portion of the milk storage tank in consecutive periods, such that each period of cooling (τ1, τ3) is followed by a respective period of non-cooling (τ2, τ4), wherein the duration of each period of cooling and/or non-cooling is based on the measured quantity indicative of the inner surface area temperature, and the cooling need.

REFERENCES:
patent: 2509214 (1950-05-01), Cordis
patent: RE23543 (1952-09-01), Duncan
patent: 4612537 (1986-09-01), Maltais et al.
patent: 5275124 (1994-01-01), van der Lely et al.
patent: 5769025 (1998-06-01), van der Lely et al.
patent: 0471598 (1992-02-01), None
patent: 0797915 (1997-10-01), None
patent: 0156370 (2001-08-01), None

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