Method and apparatus for inspecting glass containers

Details Method and apparatus for inspecting glass containers Method and apparatus for inspecting glass containers

1981-06-12

1984-01-03

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

356240, G01V 904

Patent

active

044244410

ABSTRACT:
This invention relates to method and apparatus for inspecting glass containers and other types of containers having transparent or translucent sidewalls for defects, and especially to inspecting the finish portion of glass containers for defects such as horizontal checks. The entire finish portion is illuminated by diffused light and the check-type defects reflect light upwardly into an Erfle eyepiece which is then imaged onto a matrix-type light sensor.

REFERENCES:
patent: 4026414 (1977-05-01), Ellinger
patent: 4256957 (1981-03-01), Ford et al.
patent: 4284353 (1981-08-01), Yoshida et al.
patent: 4367405 (1983-01-01), Ford

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