Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1988-01-11
1989-10-17
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
356240, G01N 904, G06M 700, H01J 4014
Patent
active
048749400
ABSTRACT:
A method and apparatus for inspecting the bottom of a transparent container for defective conditions, such as internal stuck glass, internal loose glass or foreign material. The container is provided in an inspection zone and a linearly extending line of light from a light source is focused to pass through the container bottom with the line of light extending the length of the inspection zone and hence the length of the container bottom. The linearly extending line of light enters the container through the exterior surface of the container bottom. The intensity of the light reflected from defects in or within the container and through the container side wall at a predetermined angle is detected. The detected intensity of the reflected light is compared with a predetermined threshold value that provides a measure of the acceptability of the container.
REFERENCES:
patent: 3101848 (1961-03-01), Uhling
patent: 3249224 (1966-05-01), Uhlig
patent: 3262561 (1966-07-01), Sorbie
patent: 3356853 (1967-12-01), Rottman
patent: 3557950 (1971-01-01), Powers
patent: 3746165 (1973-07-01), Ford et al.
patent: 3848742 (1974-11-01), Krenmayr
patent: 4083637 (1978-04-01), Ellinger et al.
patent: 4335960 (1982-06-01), Ashcroft et al.
patent: 4435641 (1984-03-01), Hajime
patent: 4448526 (1984-05-01), Miyazawa
patent: 4655349 (1987-04-01), Joseph et al.
patent: 4691231 (1987-09-01), Fitzmorris et al.
Chollock Ronald S.
Lerch Alan E.
McMeekin James H.
Wesdock James F.
Brockway, Inc. (N.Y.)
Chatmon Eric F.
Nelms David C.
LandOfFree
Method and apparatus for inspection of a transparent container does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for inspection of a transparent container, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for inspection of a transparent container will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1744996