Coin size tester
US3981384A · kind A · utility
2Cited by
3References
49Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 5, 1975 |
| Grant date | Sep 21, 1976 |
| Priority date | — |
| Expiry date | Dec 5, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07F1/048
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A coin tester for testing the diameter of coins is disclosed and has a trackway for coins to roll through, a journal positioned lateral to the trackway, and a ball in the journal which ball projects into the trackway and is moveable in the journal by a properly sized coin for passage of the coin; if the coin is of less than proper size, the ball will force the coin out of the trackway; also disclosed are double and triple trackway configurations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.