Time limited power boost passing for toy vehicles
US4247108A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 1979 |
| Grant date | Jan 27, 1981 |
| Priority date | — |
| Expiry date | Sep 10, 1999 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63H18/12
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A toy vehicle game includes an endless track defining two generally parallel lanes along which toy vehicles including reversible rotary drive motors responsive to current polarity reversal are driven while being biased against one or the other of the side walls of the track depending upon the polarity of current supplied to the vehicle motor. Current is supplied to the track through contact strips and a control system which permits the operators to separately and independently control current to the contact strips. When the polarity of the current to one of the toy vehicles is reversed a boost in available average electrical power is made available to that toy vehicle for a first limited duration maximum period. After using the boosted average power the selected toy vehicle must return to its original lane to be operated there at a normal power level for a mimimum of a second limited fixed duration period before power boost is again available. A balancing control equalizes the maximum performance of the two vehicles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.