Anti-collision toy vehicle playset
US4993985A · kind A · utility
22Cited by
9References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 1990 |
| Grant date | Feb 19, 1991 |
| Priority date | — |
| Expiry date | Jan 29, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63H33/26
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A children's toy car playset contains at least two toy cars, suitably containing low friction wheel and axle structures. Each of the cars contains an anti-collision device that in normal play prevents collisions between the cars, irrespective of the angle of approach at which one of the cars moves toward an other. Suitably the anti-collision device is formed by a permanent magnet with the magnetic fields oriented so that the field lines extend downwardly at least about the periphery of the car.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.