Aperture mask conveyor and inspection system

Details Aperture mask conveyor and inspection system Aperture mask conveyor and inspection system

1977-02-04

1978-07-11

Blunk, Evon C.

Conveyors: power-driven

With means to facilitate working, treating, or inspecting...

Condition responsive control of conveyor or station apparatus

193 2C, 198470, 198524, 198560, 198586, 198627, 198862, 271184, 271185, B65G 4308, B65G 2110, B65G 1514

Patent

active

040996077

ABSTRACT:
The aperture mask conveyor and inspection system comprises a pair of belt conveyor assemblies which between them grip and transport an aperture mask from the end of the processing unit to a chute assembly which chute assembly feeds the mask onto a belt conveyor, a densitometer is centrally positioned on the belt conveyor to provide a measure of the amount of light transmitted through the center portion of the mask which is passed beneath the densitometer. After passing under the densitometer the mask is deposited on an adjacent tray.

REFERENCES:
patent: 1288125 (1918-12-01), Muller
patent: 1826379 (1931-10-01), Birkmeyer et al.
patent: 2758728 (1956-08-01), Henry
patent: 3242342 (1966-03-01), Gabar
patent: 3360099 (1967-12-01), Barr
patent: 3554351 (1971-01-01), Rothenbach et al.
patent: 3618740 (1971-11-01), Taverna
patent: 3928114 (1975-12-01), Aylon
patent: 3952874 (1976-04-01), Owen
patent: 4029194 (1977-06-01), Feurstein et al.

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