Chest motion electricity generating device
US4245640A · kind A · utility
Inventor
Key dates
| Filing date | Oct 7, 1977 |
| Grant date | Jan 20, 1981 |
| Priority date | — |
| Expiry date | Oct 7, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K35/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A self-contained chest motion electricity generating device which converts normal respiratory breathing motion into electrical energy. The device employs a magnetic circuit which includes a permanent magnet and an induction coil wrapped around a ferromagnetic core. The magnetic circuit is mounted on a chest harness which includes shoulder straps and a chest strap. The chest strap includes an elastic materal which expands and contracts with normal respiratory motion. The permanent magnet and the induction coil of the magnetic circuit is separated by the elastic material such that in the totally exhaled state, a minimal gap exists between the permanent magnet and the ferromagnetic core. Normal breathing action expands and contracts the elastic material, thus varying the separation distance between the induction coil and the permanent magnet in such a fashion as to vary the magnetic flux linkage with the induction coil, thereby inducing a current through the coil. This induced current is then made available from leads attached to the induction coil as usable electrical power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.