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:
Mar. 03, 1987
Filed:
Sep. 05, 1985
Ronald A Hoormann, St. Peters, MO (US);
Coin Acceptors, Inc., St. Louis, MO (US);
Abstract
A coin sizing circuit and method of operation therefor for use with a coin-operated vending system for distinguishing between various deposited coins as they travel along a predefined path, comprising first and second spaced sensors positioned to detect the movement of a deposited coin thereby, the sensors being responsive to movement of the deposited coin to produce an initial sensing status signal and two further sensing status signals as the coin moves along the predefined path by the sensors and reaches particular positions relative thereto, a memory having predetermined coin sizing data stored therein, and processing circuitry, preferably a programmed microprocessor, operatively connected to the sensors to receive the sensing status signals produced thereby and also operatively connected to the memory to permit the retrieval therefrom of the data stored therein. The processing circuitry is responsive to production of the initial sensing status signal and the first occurring of the two further sensing status signals to establish a time window interval, and is subsequently responsive to production within the time window interval of the second occurring of the two further sensing status signals so as to distinguish a coin whose movement past the sensors effects production within the time window interval of the second occurring of the two further sensing status signals from other coins whose movements past the sensors effect productions of the second occurring of the two further sensing status signals at times outside of the time window interval.