Device for detecting defects in glass articles

Details Device for detecting defects in glass articles Device for detecting defects in glass articles

1982-03-29

1985-01-01

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

356240, G01N 2132

Patent

active

044917287

ABSTRACT:
A device for detecting unacceptable defects in a neck area of hollow glass articles transported by a feeding element has a light source spaced from a path of feeding of the articles and arranged to illuminate the neck area of the latter, a projecting element arranged to project an image of the neck area of each of the glass articles, an image receiving element arranged to receive the projected image of the neck area and having a plurality of electrooptical elements, wherein the projecting element includes a mirror arranged to project the image of the neck area of each of the articles along a projecting axis which is transverse to the longitudinal axis of the device, and the electrooptical elements are arranged in a circle located in a plane normal to the projecting axis.

REFERENCES:
patent: 2174848 (1939-10-01), Stahmer
patent: 2645971 (1953-07-01), Herbst
patent: 3089594 (1963-05-01), Early
patent: 3245533 (1966-04-01), Rottmann
patent: 3529169 (1970-09-01), Heaney et al.
patent: 3549890 (1970-12-01), Keller
patent: 3625618 (1971-12-01), Bickel
patent: 4213042 (1980-07-01), Beach et al.
patent: 4259571 (1981-03-01), Dubberly

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