Method and apparatus for authenticating and identifying coins

Details Method and apparatus for authenticating and identifying coins Method and apparatus for authenticating and identifying coins

1975-07-09

1976-09-14

Reeves, Robert B.

Check-actuated control mechanisms

Including noncontacting, relatively movable parts connected...

2091118, G07F 302

Patent

active

039801683

ABSTRACT:
In a coin selector, a coin moving in a nearly vertical path under the influence of gravity is first tested to determine whether it is made of a ferromagnetic or non-ferromagnetic, conductive material. If the coin is identified as one of ferromagnetic material, it is further identified by examining a function of one of the coin's dimensions and by timing the period necessary for it to travel through a solenoid. If the coin is identified as of a non-ferromagnetic, conductive material, it is further identified by examining a function of one of the coin's dimensions and timing the period necessary for it to travel through a linear motor which is arranged to decelerate such moving coins.

REFERENCES:
patent: 1972097 (1934-09-01), Hoban
patent: 3193075 (1965-07-01), Okolischan et al.
patent: 3349323 (1967-10-01), Mullen
patent: 3556276 (1971-01-01), Pennell
patent: 3701405 (1972-10-01), Fougere
patent: 3797307 (1974-03-01), Johnston

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