Multiple column vending machine malfunction lockout circuit
US4044877A · kind A · utility
19Cited by
4References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 6, 1976 |
| Grant date | Aug 30, 1977 |
| Priority date | — |
| Expiry date | Feb 6, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07F9/02
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An electrically operated control circuit for a multiple selection vending machine with lockout circuits to isolate mal-functioning sections, thereby enabling continued vending machine operations via the remaining functional sections. The lockout circuitry is particularly directed toward sensing and compensating for jammed conditions in the product dispensing mechanisms using a minimal amount of additional circuit elements over non-protected counterpart machines. The malfunction lockout circuitry includes a motor-cam driven embodiment, and a unique thermally sensitive motor thermostat actuated embodiment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.