Magnetic card reader

Details Magnetic card reader Magnetic card reader

1975-03-10

1976-12-21

Hohauser, Herman

Electricity: circuit makers and breakers

Pattern-sheet controlled

235 6111D, 235 6112M, H01H 4308

Patent

active

039990230

ABSTRACT:
A magnetic card reader for providing an output to a utilization device. A plurality of reed switches are arranged in coplanar relationship and means is provided for maximizing the flux of magnetized spots of a magnetically coded card so that a predetermined magnetized spot actuates a predetermined reed switch of the reader without requiring any internal magnetic biasing. The flux of the magnetized spots is maximized by providing relatively large contiguous areas of a polarity reversed from that of the magnetized spot which actuates a switch.

REFERENCES:
patent: 3581030 (1971-05-01), Sedley
patent: 3788617 (1974-01-01), Barney

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