Transport and positioning mechanism

Details Transport and positioning mechanism Transport and positioning mechanism

1979-05-31

1980-10-07

Griffin, Donald A.

Photocopying

Projection printing and copying cameras

Step and repeat

355 76, G03B 2742, G03B 2762

Patent

active

042265266

ABSTRACT:
Substrates such as printed circuit boards are transported between and precisely indexed at work stations by means of a gas cushion formed on a plate. The substrate is transported and shifted from position to position by means of ducted gas jets or sweeps while indexing of the substrate is achieved by means of movable stops controlled by electromagnets or pneumatic means. The system finds particular use in the drilling of printed circuit boards and for component insertion, especially of integrated circuit chips, thereon.

REFERENCES:
patent: 2236197 (1941-03-01), Moore
patent: 2599859 (1952-06-01), Ogg
patent: 2799205 (1957-07-01), Bacsik
patent: 3103850 (1963-09-01), Khoury et al.
patent: 3704945 (1972-12-01), Denis et al.
I.B.M. Technical Disclosure Bulletin vol. 4, No. 10, Mar. 1962, p. 8, R. Wilmer Document Transport.

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