Method of determining foreign material in food products using ul

Details Method of determining foreign material in food products using ul Method of determining foreign material in food products using ul

1979-01-31

1980-06-24

Kreitman, Stephen A.

Measuring and testing

Vibration

By mechanical waves

73639, 209590, G01N 2900, B07C 534

Patent

active

042089158

ABSTRACT:
A method of determining foreign material such as metal and bone particles in food products, the method using ultrasonic sound frequencies from a plurality of transducers disposed in a rotatable cylinder having a liquid copulant. The cylinder having a surrounding flexible wall which is compressed on top of the surface of the food products. The sound frequencies are transmitted through the food products and received back by a receiver in the transducers for monitoring any variance in the frequency indicating foreign material in the food products.

REFERENCES:
patent: 2545101 (1951-03-01), Meunier
patent: 2836059 (1958-05-01), Beaujard et al.
patent: 3423991 (1969-01-01), Collins
patent: 3435950 (1969-04-01), Suverkrop
patent: 3503501 (1970-03-01), Seaborn
patent: 3975261 (1976-08-01), Beck

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