Emergency battery system with an infinite shelf life
US5340662A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 15, 1993 |
| Grant date | Aug 23, 1994 |
| Priority date | — |
| Expiry date | Jan 15, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01M6/32
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An emergency battery system having an infinite shelf life, comprising a first primary reserve, water-activated battery that can be connected directly to an emergency appliance to provide voltage therein once activated, that can be connected to a self-contained, rechargeable battery utilized with the water-activated battery and stored for long periods of time to provide charge to the rechargeable battery, which itself can then be connected to an electrical emergency appliance, or the water-activated battery is connected to a power conversion circuit that can provide a variety of voltages to emergency electrical appliances that already have their own self-contained, rechargeable batteries. The emergency battery system described herein can be used to power emergency appliances, such as lights, lanterns, emergency radios, or DC-powered telephones. As long as the water-activated battery is kept free of moisture or water, the shelf life is virtually infinite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.