Slot machine with stop switch enablement after attainment of minimum reel speed
US4773647A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 2, 1984 |
| Grant date | Sep 27, 1988 |
| Priority date | — |
| Expiry date | Aug 2, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07F17/34
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A slot machine of the type having a plurality of reels and pulse motors for rotating the respective reels wherein the pulse motors can be stopped individually by touching stop switches provided one for each of the respective reels. Every stop switch is provided with a light-emitting indicator for indicating that the stop switch is operable, and the stop switch becomes operable only when its corresponding pulse motor, and hence the associated reel, has reached a predetermined speed of rotation. In this way, the display of selected symbols cannot be controlled by the player stopping the reels during an initial phase of their movement when they are turning only very slowly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.