Model train controller using electromagnetic field between track and ground
US5441223A · kind A · utility
37Cited by
31References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 8, 1993 |
| Grant date | Aug 15, 1995 |
| Priority date | — |
| Expiry date | Oct 8, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63H30/04
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A controller for model trains on a train track is provided. The controller transmits control signals between a rail of the track and earth ground, generating an electromagnetic field which extends for several inches around the track. A receiver in the locomotive can then pick up signals from this electromagnetic field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.