Automatic milking device and method of operation thereof
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 4, 1991
Grant Date -
N/A
app pub date -
Jan 9, 1989
filing date -
Jan 8, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A milking cup is moved into position surrounding a cow's teat by power operated members controlled by an electrical circuit including a pair of spaced ultrasonic detectors for locating the teat. Each detector includes a transmitter and a receiver. The ultrasonic fields produced by the transmitters intersect one another at a position spaced from the transmitters. Conical reflecting surfaces are disposed adjacent the transmitters and receivers to reflect ultrasonic waves to obtain a detection field of predetermined dimensions and to determine the area within which the ultrasonic waves are reflected back to the receivers. The generatrix of the conical reflecting surfaces may be slightly concave or convex.
First Claim
Family
International Classification(s)
Cited Art Landscape
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