Electronic belt with deactivating device
US5528450A · kind A · utility
9Cited by
4References
3Claims
0Family size
Inventors
Key dates
| Filing date | May 20, 1994 |
| Grant date | Jun 18, 1996 |
| Priority date | — |
| Expiry date | May 20, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05C1/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A radio receiver and its power supply are included in a circuit with a switch which is responsive to introduction of a force field, such as a magnetic field. When the field is activated, as by the introduction of a sufficiently powerful magnet, the switch is opened and the radio receiver is deactivated. Removal of the force field automatically restores the radio receiver to operable condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.