Egg candling system
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United States of America Patent
Stats
-
Apr 1, 1997
Grant Date -
N/A
app pub date -
Jan 17, 1995
filing date -
Jan 17, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A light beam such a laser beam is used to scan the surface of an egg for flaws such as pin holes, cracks, thinned shell regions, etc. The light beam is vibrated with a rocking/rotating movement to describe a closed curve such as a circle, ellipse or an ellipse so narrow that it is effectively a straight line. The utilization of such a light beam allows identification of types of flaws due to the character of the progression of light emanating from the egg. The invention includes apparatus for rotating the egg about its longitudinal axis in the path of the beam or beams. The apparatus also includes apparatus for forming the vibrating beam such as mirrors vibrated by out of phase electro-magnetic vibration or piezo electric actuators.
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