Pinball machine having magnetic ball control
US4373725A · kind A · utility
126Cited by
6References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 24, 1980 |
| Grant date | Feb 15, 1983 |
| Priority date | — |
| Expiry date | Oct 24, 2000 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63F2250/1073
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
Magnetic control of a ball on a pinball playfield is provided by an electromagnet located on the playfield and a mechanism manually operable by a player for energizing the electromagnet. The energizing mechanism includes a first switch external on the playfield operable by player and a second switch on the playfield which is activated by a ball hitting a target thereon. The first and second switch are connected in series with the electromagnet to control the latter. A timing mechanism is provided to limit the energization of the electromagnet to a predetermined time period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.