Device for contactless detection of glass sheets in movement wit

Details Device for contactless detection of glass sheets in movement wit Device for contactless detection of glass sheets in movement wit

1991-12-23

1993-10-19

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Housings

250216, H01V 502

Patent

active

052548554

ABSTRACT:
A device for contactless detection of glass sheets in movement in glass installations, using a reflective photoelectric barrier, includes an emitter and a receiver (3) of light beams (4). The light beams follow a path in a channel (6) of heat-resistant material whose walls delimit a homogeneous isothermal environment, the channel emerging in the vicinity of sheet (11) to be detected.

REFERENCES:
patent: 3216477 (1965-11-01), Devine
patent: 4163903 (1979-08-01), Robertson
patent: 4694158 (1987-09-01), Leser

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