Automatic level sensing system
First Claim
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1. A receptacle counting system comprising:
- ultrasonic sound wave transducer means for emitting ultrasonic sound waves and for receiving ultrasonic sound waves reflected from a receptacle whose content level is to be sensed;
a rim detector, responsive to said reflected ultrasonic sound waves, for determining the location of the rim of the receptacle;
a receptacle detector, responsive to said rim detector, for indicating when a receptacle is present; and
means responsive to the receptacle detector, for monitoring the number of receptacles presented to the system.
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Abstract
A receptacle counting system includes an ultrasonic sound wave transducer for emitting ultrasonic sound waves and for receiving ultrasonic sound waves reflected from a receptacle whose contact level is to be sensed. There is a rim detector, responsive to the reflected ultrasonic sound waves, for determining the location of the rim of the receptacle and a receptacle detector, responsive to the rim detector, for indicating when a receptacle is present. One or more counters, responsive to the receptacle detector, are provided for monitoring the number of receptacles presented to the system.
49 Citations
5 Claims
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1. A receptacle counting system comprising:
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ultrasonic sound wave transducer means for emitting ultrasonic sound waves and for receiving ultrasonic sound waves reflected from a receptacle whose content level is to be sensed; a rim detector, responsive to said reflected ultrasonic sound waves, for determining the location of the rim of the receptacle; a receptacle detector, responsive to said rim detector, for indicating when a receptacle is present; and means responsive to the receptacle detector, for monitoring the number of receptacles presented to the system. - View Dependent Claims (2, 3, 4)
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5. A receptacle counting system comprising:
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ultrasonic sound wave transducer means for emitting ultrasonic sound waves and for receiving ultrasonic sound waves reflected from a receptacle whose content level is to be sensed; a rim detector, responsive to said reflected ultrasonic sound waves, for determining the location of the rim of the receptacle by sensing reflected ultrasonic sound waves having a signal level greater than a reference level; a receptacle detector, responsive to said rim detector, for indicating when the receptacle is present; and means, responsive to the receptacle detector, for monitoring the number of receptacles presented to the system.
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Specification