System for issuing tickets
AssigneeSchlumberger Industries
InventorPierre Didiergeorge
Life of this patent
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Abstract
The present invention relates to a system for issuing tickets and including means for delivering a warning signal when the remaining stock of paper falls below a given number of tickets. To do this, a strip (6) has a special mark on it together reference marks delimiting a length of strip corresponding to one ticket. A sensor (24) detects the passage of the special mark and loads a counter (40). Each time a reference mark goes past the sensor, the contents of the counter (40) is decremented. When a comparator (42) detects that the contents of the counter has reached a predetermined value, it delivers the warning signal.
Claims3
A ticket-issuing system including a strip of paper having first and second main faces mounted on a support in order to dispense a plurality of tickets, said strip of paper including at least one mark on one of said main faces, the system including print means comprising an aperture for printing a ticket on the strip, drive means for driving said strip to cause said strip to pass through said aperture of said print means cutter means for cutting off a part of the strip that has been printed from a remainder of the strip, said printed part of the strip cut corresponding to a ticket, detector means for detecting said mark to deliver a special detection signal in order to deduce information concerning a number of tickets remaining on the strip, means for generating a reference signal representative of a predetermined number of tickets, comparator means for comparing said predetermined number of tickets with the number of tickets remaining, and warning means for delivering a warning signal in response to said comparison.
Dependencies are inferred from the claim text.