EP 0725374 B1 20021127 - Coin acceptor with device to test the hardness
Title (en)
Coin acceptor with device to test the hardness
Title (de)
Münzgerät mit einer Vorrichtung zur Härtebestimmung von Münzen
Title (fr)
Contrôleur de pièces de monnaie avec dispositif pour vérifier la dureté
Publication
Application
Priority
DE 19503765 A 19950204
Abstract (en)
[origin: DE19503765C1] A coin checking system tests on the basis of material hardness to detect if the coil is authentic. A piezo electric sensor 5 is mounted on a steel block at the end of a leaf spring supported as a cantilever 10. A contact element 4 is formed on the tip of the sensor and this is positioned to project through an aperture in a coin guide track. Coins are rolled along the inclined track and in doing so strike the contact element. The signal from the sensor is amplified and is in the form of a transient with the amplitude being indicative of the material.
IPC 1-7
IPC 8 full level
CPC (source: EP)
G07D 5/06 (2013.01)
Designated contracting state (EPC)
CH DE ES FR GB LI
DOCDB simple family (publication)
DE 19503765 C1 19960502; DE 59510476 D1 20030109; EP 0725374 A2 19960807; EP 0725374 A3 19980520; EP 0725374 B1 20021127; ES 2184781 T3 20030416
DOCDB simple family (application)
DE 19503765 A 19950204; DE 59510476 T 19951114; EP 95117912 A 19951114; ES 95117912 T 19951114