Title: Product separator

Abstract: A secondary light sensitive photoelectric product separator for use with a primary product separator that concentrates a material so that it is visually distinguishable from adjacent materials. The concentrate separation is accomplished first by feeding the material onto a vibratory inclined surface with a liquid flow, such as a wet concentrating table. Vibrations generally perpendicular to the stream direction of flow cause the concentrate to separate from its mixture according to its color. When the concentrate and its surrounding stream reach the recovery end of the table, a detecting device notes the line of color demarcation and triggers a signal if it differs from a normal condition. If no difference is noted nothing moves on the second separator. However, if a difference is detected in the constant monitoring of the color line's location, a product splitter and recovery unit normally positioned near the color line at the recovery end, moves to a new position. In this manner the selected separated concentrate is recovered at a maximum rate regardless of variations in the flow stream or other conditions present.

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Inventors: Welsh, Robert A. (Bethel Park, PA, US)
Deurbrouck, Albert W. (Pittsburgh, PA, US)

Application Number: 344697
Filing Date: 1973-03-26
Publication_date: 1976-01-20
Assignee: The United States of America as represented by the United States Energy (Washington, DC)
Primary Class(es): 209/557 209/441, 209/580, 209/694, 209/932
Other Classes:
US Patent Ref:

1513693	Oct, 1924	Butchart	209/441.
1678884	Jul, 1928	Sweet	209/111.
2907459	Oct, 1959	Jean	209/441.
3179247	Apr, 1965	Hutter et al.	209/111.
3650396	Mar, 1972	Gillespie et al.	209/111.

Other Refs:
Primary Examiner: Knowles, Allen N.
Assistant Examiner:
Attorney: