Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1989-04-04
1990-06-26
Swann, III, Glen R.
Communications: electrical
Condition responsive indicating system
Specific condition
73587, 340573, 367180, G08B 2100
Patent
active
049375555
ABSTRACT:
Detection of insect infestation in an agricultural commodity is provided by piezoelectric means for generating electricity in response to vibration only of a frequency above about 500 Hertz, in vibrational communication with the agricultural commodity. The present invention may be utilized to detect infestation by a variety of different insects such as rice weevil, lesser grain borer, angoumais moth, in numerous types of agricultural commodities including corn, wheat, rice nuts, cotton, etc.. Various embodiments are disclosed including use of the piezoelectric means, on a probe, with a sample cup, in a device for telemetry, and with various container means for containing an agricultural commodity including e.g. a truck, ship, railroad car and storage bin such as a silo or grain elevator.
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Litzkow Carl A.
Vick Kenneth W.
Webb J. C.
Sadowski David R.
Silverstein M. Howard
Swann III Glen R.
The United States of America as represented by the Secretary of
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