Stencilling a unique machine-readable marking on each of a plura

Details Stencilling a unique machine-readable marking on each of a plura Stencilling a unique machine-readable marking on each of a plura

1983-10-28

1985-02-05

Lusignan, Michael R.

Coating processes

Electrical product produced

Hollow article

1011284, 219121LM, 427282, 430 22, 430 23, 430308, 430945, B05D 512, B23K 900, B41C 114

Patent

active

044978480

ABSTRACT:
Method and apparatus are described for producing a unique machine-readable marking, such as a bar-code marking, on each of a succession of workpieces, such as glass envelope parts of cathode-ray tubes. The method comprises producing and applying a different unique stencil for each workpiece and then applying a suitable paint through the stencil.

REFERENCES:
patent: 2625734 (1953-01-01), Law
patent: 3212949 (1965-10-01), Thompson
patent: 3696742 (1972-10-01), Parts et al.
patent: 4216019 (1980-08-01), Reed et al.
patent: 4288529 (1981-09-01), Sano et al.
patent: 4323755 (1982-04-01), Nierenberg
patent: 4327283 (1982-04-01), Heyman et al.
patent: 4363289 (1982-12-01), Gasser
patent: 4374451 (1983-02-01), Miller

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