Fast-winding spring motor
US4318455A · kind A · utility
10Cited by
2References
8Claims
0Family size
Inventor
Key dates
| Filing date | Apr 12, 1979 |
| Grant date | Mar 9, 1982 |
| Priority date | — |
| Expiry date | Apr 12, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S185/01
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
Spring motor for toy vehicles mainly comprising a spring constituted by a twisting rubber skein driving a driving-shaft connected to the propeller by a gear transmission and carrying a maneuvering endpiece receiving a winding crank which crosses the circle swept by the propeller. A free wheel may be included in the gear transmission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.