Title: Sensor for soft drink dispenser

Abstract: A photoelectric sensor circuit may be provided for a soft drink dispenser for indicating when a supply tank within the dispenser has run dry of fluid. Said circuit employs preferably an orthogonal reflection photosensor for sighting through the supply line for triggering an electronic relay which operates audio and visual alarms and for triggering additional control signals to the dispensing machine control box for altering the operation of the dispensing machine when it has been determined that the supply line is empty.

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Inventors: Edwards, Raymond A. (New York, NY, US)

Application Number: 917509
Filing Date: 1978-06-21
Publication_date: 1980-05-13
Assignee: Elser Farms Corporation (West Chester, PA)
Primary Class(es): 340/619 340/618
Other Classes:
US Patent Ref:

3242794	Mar, 1966	Crane	340/619.
3994175	Nov, 1976	Yamaguchi	340/619.

Other Refs:
Primary Examiner: Pitts, Harold I.
Assistant Examiner:
Attorney: Paul & Paul