Methods and systems for controlling a dispensing apparatus
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United States of America Patent
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Jan 26, 1999
Grant Date -
N/A
app pub date -
May 3, 1996
filing date -
May 3, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system for controlling a dispensing apparatus having a dispensing outlet includes a first illumination source having a first field of illumination, a second illumination source having a second field of illumination, at least one optical sensor, and a control circuit. The control circuit is responsive to the at least one optical sensor to initiate dispensing of a material through the dispensing outlet when the at least one optical sensor senses a portion of a receiving member positioned within the first field of illumination and the second field of illumination. An alternative embodiment utilizes a single illumination source, a plurality of optical sensors, and a control circuit. Here, dispensing can be initiated when a portion of the receiving member is within the fields of view of the plurality of optical sensors.
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