Gas lighter with safety device
US6431854B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Dec 18, 2001 |
| Grant date | Aug 13, 2002 |
| Priority date | — |
| Expiry date | Dec 18, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23Q2/161
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A safety fuel lighter with an improved ignitor assembly, including a striker wheel which rotates about an axis in response to force applied to the striker wheel by a user's thumb or finger. The striker wheel has an annular center portion, two outer annular portions sandwiching the center portion, and a bore extending through the center portion and the two outer portions. An axle is positioned within the bore of the striker wheel, where the axle has a diameter which is smaller than the diameter of the bore. A mounting frame has a spring receptacle and a pair of mounting holes for receiving the axle so that the striker wheel can move from a first position to a second position. A spring is received within the spring receptacle and positioned below a flint. The spring exerts a compressive force against the flint and forces the flint into contact with the striker wheel. The compressive force exerted by the spring being insufficient to cause the flint to generate sparks when the striker wheel is in the first position and rotated, and the compressive force exerted by the spring being sufficient to cause the flint to generate sparks when the striker wheel is in the second position and rota…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.