Patent ID: 7789211

Claim:
A device for validating valuable papers comprising: a casing formed with an inlet and an outlet, said casing having an arcuate member, a drum secured within said casing, a conveying device that comprises: a rotor arrangement rotatably mounted in said casing in the vicinity of the drum to form an annular pathway in an angular range of 360 degrees between said rotor arrangement and said arcuate member, a roller arrangement in contact to an outer surface of said rotor arrangement to grasp a valuable paper inserted from the inlet between said rotor arrangement and said roller arrangement, and rotate said paper together with said rotor arrangement at least one revolution along said annular pathway so that a whole length of said paper is wound around the outer surface of said rotor arrangement, and a drive device for rotating said rotor arrangement, a sensor arranged along said annular pathway for detecting a physical property of a valuable paper moved along said annular pathway to produce detection signals, and a control device for validating authenticity of the paper in view of detection signals from said sensor to control operation of said conveying device so that said paper is separated from said annular pathway and discharged through said outlet, when said control device considers the paper to be genuine based on the detection signals from said sensor, wherein the paper is validated more than once based on detection signals from said sensor during the continuous rotation in the same direction of said rotor arrangement around which the paper is wound.