Key operated mechanism for producing coded signal combinations f

Details Key operated mechanism for producing coded signal combinations f Key operated mechanism for producing coded signal combinations f

1987-12-24

1988-11-29

Scott, J. R.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

For relays or solenoids

70413, 335206, 335207, E05B 2700, H01H 4700

Patent

active

047886234

ABSTRACT:
This invention pertains to a key operated mechanism for producing coded signal combinations for selecting a function of a multifunctional device. The mechanism includes a plurality of magnetically operated switches arranged along a key guide. The key includes magnets specifically positioned for interaction with the magnetically operated switches in accordance with a code diagram. Closing of the switches sends signals to a code signal user, which if the signals are enabling activates an associated machine such as a franking machine.

REFERENCES:
patent: 2767278 (1956-10-01), Collins
patent: 3705369 (1972-12-01), Schwendeman, Jr.
patent: 4317156 (1982-02-01), Stangl
patent: 4331013 (1982-05-01), Jaulmes
patent: 4380162 (1983-04-01), Woolfson
patent: 4392134 (1983-07-01), Lutz
patent: 4554422 (1985-11-01), Embrey et al.
patent: 4562711 (1986-01-01), Fliege

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