Safety lighter
US5197870A · kind A · utility
37Cited by
4References
8Claims
0Family size
Inventor
Key dates
| Filing date | Jan 29, 1992 |
| Grant date | Mar 30, 1993 |
| Priority date | — |
| Expiry date | Jan 29, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23Q2/164
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A gas lighter which operates by depressing an operating lever to lift a gas pipe thereby opening a gas release valve while a spark is generated by simultaneous rotation of a striker wheel in engagement with a flint has a safety mechanism for ensuring that the valve is closed when the operating lever is released. The safety mechanism includes a spring element which urges the operating lever out of engagement with the gas pipe in the released position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.