Circuitry for electronic scoring dartboard
US4804193A · kind A · utility
9Cited by
3References
1Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Sep 21, 1987 |
| Grant date | Feb 14, 1989 |
| Priority date | — |
| Expiry date | Sep 21, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41J5/052
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An electronic dartboard which includes a circuit board having a plurality of contacts and a dart-engaging target assembly mounted in front of the circuit board. The target assembly has a plurality of individual scoring blocks. Each block has at least one stem rearwardly protruding towards the circuit board. A conductor point and a buffer ring are provided at the back end of the stem. The buffer ring spaces the conductor point from the contact point. When a dart is thrown on the dartboard the buffer ring deforms engaging the conductor point with the contact point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.