EP 0048557 A1 19820331 - Electronic coin validators.
Title (en)
Electronic coin validators.
Title (de)
Elektronischer Münzprüfer.
Title (fr)
ContrÔleur électronique de pièces de monnaie.
Publication
Application
Priority
GB 8030389 A 19800919
Abstract (en)
The validator has a transmit coil TC for creating a magnetic field and a receive RC coil for detecting changes in the field due to the presence of a coin adjacent to the coils. The validator performs a test on each coin to provide a first parameter which is a measure of coin face area, and a second parameter which is a measure of coin resistance. The parameters are utilised to establish the validity of the coin.
IPC 1-7
IPC 8 full level
G07D 5/00 (2006.01)
CPC (source: EP)
G07D 5/08 (2013.01)
Citation (search report)
- DE 1925042 A1 19701126 - STEGMUELLER JOHANN
- DE 1930345 A1 19701223 - NAT REJECTORS GMBH
- US 3962627 A 19760608 - PTACEK JAMES F, et al
- US 4124111 A 19781107 - HAYASHI YUKICHI
- US 4086527 A 19780425 - CADOT ROBERT G
- [A] US 4091908 A 19780530 - HAYASHI YUKICHI, et al
- [A] US 4108296 A 19780822 - HAYASHI YUKICHI, et al
- [A] FR 2212589 A1 19740726 - SATMAM [FR]
- [A] DE 2551321 A1 19770526 - BERLINER MASCHINENBAU AG
Designated contracting state (EPC)
AT CH DE IT NL SE
DOCDB simple family (publication)
EP 0048557 A1 19820331; EP 0048557 B1 19850410; AT E12710 T1 19850415; AU 541536 B2 19850110; AU 7516781 A 19820325; DE 3169841 D1 19850515; IE 52100 B1 19870610; IE 812174 L 19820319; ZA 816172 B 19820929; ZW 22881 A1 19811209
DOCDB simple family (application)
EP 81304000 A 19810902; AT 81304000 T 19810902; AU 7516781 A 19810911; DE 3169841 T 19810902; IE 217481 A 19810918; ZA 816172 A 19810904; ZW 22881 A 19810915