Automatic level sensing system
OwnerM. Zane Farmer, Diane B. Farmerinventors
Life of this patent
Estimating the term…
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.
Claims5
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.
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 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.
Dependencies are inferred from the claim text.