Ball lifter mechanism
US4848748A · kind A · utility
12Cited by
6References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 15, 1988 |
| Grant date | Jul 18, 1989 |
| Priority date | — |
| Expiry date | Aug 15, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63F2007/3666
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
In a coin operated amusement game such as a pinball machine with horizontal and vertical playfields, an apparatus for lifting a pinball from a horizontal playfield to a vertical playfield is disclosed. A reversing screw, a motor to rotate the screw in one direction, an electromagnet for lifting and holding the pinball as it is moved from the horizontal to the vertical playfield, and a carrier means that travels on the reversing screw cooperate with an electromagnet that lifts the pinball.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.