EP 0209842 A3 19880406 - APPARATUS PROVIDED WITH A SENSOR FOR COIN IDENTIFICATION
Title (en)
APPARATUS PROVIDED WITH A SENSOR FOR COIN IDENTIFICATION
Publication
Application
Priority
DE 3526378 A 19850724
Abstract (en)
[origin: US4726458A] A sensor is used for the recognition of coins, which analyses the mintage. The main component of the sensor is a polymeric, elastic material (20) which has piezoelectrical properties. By pressing the minted face of a coin onto the sensory surface (23) a signal is produced corresponding to the high and low points of the mintage, which permits an assessment of the coin by means of the connection of an electronic evaluation unit.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
G07D 5/005 (2013.01 - EP US); Y10S 73/04 (2013.01 - EP US); Y10S 310/80 (2013.01 - EP US)
Citation (search report)
- [X] CH 479128 A 19690930 - SODECO COMPTEURS DE GENEVE [CH]
- [A] CH 470038 A 19690315 - SIEMENS AG [DE]
- [AD] IEEE TRANSACTIONS ON SONICS AND ULTRASONICS, Band SU-25, Nr. 6, November 1978, IEEE; G.R. CRANE: "Poly(vinylidene) fluoride used for piezoelectric coin sensors"
Designated contracting state (EPC)
CH DE FR GB LI NL SE
DOCDB simple family (publication)
EP 0209842 A2 19870128; EP 0209842 A3 19880406; DE 3526378 A1 19870205; JP S6258101 A 19870313; US 4726458 A 19880223
DOCDB simple family (application)
EP 86109729 A 19860716; DE 3526378 A 19850724; JP 17295186 A 19860724; US 88737086 A 19860717