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. 27, 1996
Filed:
Apr. 12, 1994
Hans-Ulrich Cohrs, Horneburg, DE;
Wilfried Meyer, Buxtehude, DE;
National Rejectors Inc. GmbH, Buxtehude, DE;
Abstract
A coin validator which discriminates valuable coins includes a coin path along which the coins roll. A leaf spring is fixed at one end and has a spring member which projects into the coin path at the other end when the leaf spring is in a rest position. The leaf spring oscillates when the spring member is struck by a rolling coin. An evaluation circuit produces a timing signal as a function of the elapsed time between the striking of the spring member by the rolling coin and the time when the spring member first approaches the rest position after being struck. A memory stores reference values corresponding to valuable coins and a comparator compares the timing signal to the reference values for discriminating valuable coins.