Magnetic card substitute for coins for starting appliances and t

Details Magnetic card substitute for coins for starting appliances and t Magnetic card substitute for coins for starting appliances and t

1975-04-02

1977-04-26

Reeves, Robert B.

Registers

Calculators

Input-output calculator to indicator, printer, etc.

194 4R, G06K 500

Patent

active

040203255

ABSTRACT:
A card having one or more magnetic strips is used by patrons to actuate laundry and vending machines and the like. An encoder at a central point is manually adjusted to "print" a selected number of "credit" pulses on the card strip and the card is sold to a patron. The patron inserts the card into a reader mounted on or near a laundry machine, vending machine, etc. The reader determines the number of pulses remaining on the strip, returns the card with one pulse erased and energizes a relay which starts the machine. Preferably, the reader displays the number of pulses on the card at time of insertion and those remaining after erasure.

REFERENCES:
patent: 3570643 (1971-03-01), Maierhofer
patent: 3575271 (1971-04-01), Constable et al.
patent: 3578124 (1971-05-01), Flum
patent: 3653480 (1972-04-01), Yamamoto et al.
patent: 3831193 (1974-08-01), McSweeney et al.
patent: 3836753 (1974-09-01), Pass
patent: 3935933 (1976-02-01), Tanaka et al.
patent: 3943563 (1976-03-01), Lemelson

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