Optics: measuring and testing – Egg candling – Photoelectric
Patent
1995-11-28
1997-07-08
Rosenberger, Richard A.
Optics: measuring and testing
Egg candling
Photoelectric
356 58, 356 66, G01N 3308
Patent
active
056467222
ABSTRACT:
An apparatus for candling eggs travelling along a path for the presence of blood, comprising a lightproof drum which is drivable for rotation around a fixed shaft and wherein detection means are accommodated, the drum having a number of light transmission openings which each have a bellows, the drum in operation having a rotational speed so that the ends of the bellows remote from the drum have a speed corresponding to the speed of travel of the eggs, the drum with the bellows being positioned relative to the path of travel so that in operation, each time during a part of the path of travel of the eggs, the bellows connect to an egg to be inspected, while the detection means are positioned in the drum so that they only receive light that falls into the drum via the egg which is to be inspected and to which the bellows connects, and via the light transmission opening associated with that bellows.
REFERENCES:
patent: 2536057 (1951-01-01), Hodson et al.
patent: 2843264 (1958-07-01), Pfister
patent: 3434594 (1969-03-01), Husome
patent: 5017003 (1991-05-01), Keromnes et al.
FPS Food Processing Systems B.V.
Rosenberger Richard A.
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