Method and apparatus for protecting a miner
US11388571B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2017 |
| Grant date | Jul 12, 2022 |
| Priority date | — |
| Expiry date | Jul 14, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/18
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An apparatus for protecting a miner from injury by a machine in a mine includes an explosion-proof housing. The apparatus includes a proximity sensing portion disposed in the explosion-proof housing having a magnetic field source which produces a magnetic field that is used to sense a location of the miner relative to the machine. The apparatus includes a wireless communication portion disposed in the explosion-proof housing through which the magnetic field produced by the magnetic field source is changed remotely and wirelessly from outside the explosion-proof housing. A method for protecting a miner from injury by a machine. A system for protecting a miner from injury by a machine in a mine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.