Dart board assembly for an electronic dart game
US4768789A · kind A · utility
Inventor
Key dates
| Filing date | May 7, 1987 |
| Grant date | Sep 6, 1988 |
| Priority date | — |
| Expiry date | May 7, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41J5/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A dart board assembly for use in an electronic dart game. The assembly includes an electrically insulative dart board for catching and releasably holding darts. The dart board includes a spider defining a bull's -eye and a plurality of scoring radials extending from the bull's -eye. The assembly further includes an electrically insulative sensor board positioned adjacent to and aligned with the dart board. The sensor board includes a number of electrically conductive detectors with one detector being positioned in alignment with each of the scoring radials in the bull's-eye. The sensor board also includes an electrically conductive shield surrounding each of the detectors and electrically insulated from each of them. The shield is grounded to prevent cross talk between the detectors. A method of using the dart board assembly of the present invention is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.