Circuit-closing device actuated by a plurality of coins
US3951246A · kind A · utility
2Cited by
7References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 27, 1974 |
| Grant date | Apr 20, 1976 |
| Priority date | — |
| Expiry date | Feb 27, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07F5/12
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A coin-actuated circuit-closing device includes a coin chute into which a predetermined number of like coins must be inserted to initiate the closing of a normally-open electrical control circuit. The device is responsive to introduction of a predetermined number of like coins into a coin-receptive chute to close the normally-open electrical control circuit, and is operable upon closing of the control circuit to reopen same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.