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:
Feb. 28, 1995
Filed:
Feb. 10, 1994
Applicant:
Inventors:
Christopher Ferguson, Ashland, MA (US);
J Scott Petty, Cedar Rapids, IA (US);
Assignee:
Raytheon Company, Lexington, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G07D / ;
U.S. Cl.
CPC ...
194317 ; 194343 ;
Abstract
A method and apparatus for discriminating coins based on their metal or ferrous content. Coins are transported by a rotary mechanism that stops when a coin is accurately positioned with respect to an adjacent metal sensor. The metal sensor is then activated to provide a measurement signal of the coin in the repeatable stationary position. A plurality of measurements may preferably be taken and averaged to increase the accuracy.