Radio controlled vehicle within a sphere
US4541814A · kind A · utility
Inventor
Key dates
| Filing date | Dec 23, 1983 |
| Grant date | Sep 17, 1985 |
| Priority date | — |
| Expiry date | Dec 23, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63H33/005
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A radio controlled vehicle within a sphere has two wheels touching the sphere at diametrically opposite points, with the mass of the body of the vehicle hanging underslung from the wheels; to preserve a constant length always fitting the sphere interior the wheel which steers has a steering axis substantially congruent with the sphere diameter on which the wheels touch the sphere; when confronted with an obstacle stopping roll of the sphere in a given direction, the vehicle climbs the interior wall of the sphere and either tumbles backwards or to the side, or may perform an Immelmann maneuver, depending on course taken within the sphere by the wheels which are free to travel in any part of the sphere interior.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.