The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 06, 2001
Filed:
May. 10, 1999
Applicant:
Inventors:
Malcolm Reginald Hallas Bell, Leeds, GB;
Robert Sydney Walker, Surrey, GB;
Dennis Wood, Lancashire, GB;
Les Hutton, Lancashire, GB;
Assignee:
Coin Control Limited, Oldham Lancashire, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G07D 5/08 ; G01R 3/500 ;
U.S. Cl.
CPC ...
G07D 5/08 ; G01R 3/500 ;
Abstract
The coin validator is calibrated by inserting a calibration key different from coins to be validated in a static position in the validator such that eddy currents are induced in the key by operation of its sensor coils so as to produce a calibration value of signals form the sensor coils as a function of the individual characteristics of the validator. The calibrating value of the sensor signals may be compared with ensemble data concerning corresponding calibration values derived from an ensemble of coin validators of the same design.