Apparatus for continuously controlling butterfat content of reco

Details Apparatus for continuously controlling butterfat content of reco Apparatus for continuously controlling butterfat content of reco

1976-10-12

1979-03-20

Scovronek, Joseph

Foods and beverages: apparatus

Mechanical, fluid or heat treatment of dairy food

137 3, 137 93, 137110, 364109, 426231, 426491, 422 74, A23C 900, G01N 3306, G05D 1102

Patent

active

041448049

ABSTRACT:
In a milk processing system wherein heat treated milk is initially separated into high-fat and low-fat milk and subsequently reconstituted by adding a selected proportion of high-fat milk to the low-fat milk, control means are provided for automatically controlling the proportion of high-fat milk mixed with the low-fat milk to provide a milk blend of standardized butterfat content which is then homogenized. The control means includes a photoelectric monitoring system for continuously measuring the butterfat content of a sample of the homogenized milk as the latter flows continuously through the processing system under pressure of the homogenizer in the system. The butterfat content measurement is converted to digital signals which are compared to a pre-set digital signal corresponding to a desired butterfat content level to produce a digital corrective signal which controls a digital valve regulating the proportion of high-fat milk blended with the low-fat milk in the processing system. Means are also provided for calibrating the control means at selected intervals to adjust the pre-set digital signal therein to correspond precisely to the desired butterfat content level.

REFERENCES:
patent: 3442623 (1969-05-01), Aegiduis
patent: 3605775 (1971-09-01), Zoander et al.
patent: 3828172 (1974-08-01), Schickler
patent: 3829584 (1974-08-01), Seiberling
patent: 3961570 (1976-06-01), Sanden
patent: 3983257 (1976-09-01), Malmberg et al.
patent: 4017643 (1977-04-01), Lester

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