Safety disposable lighter
US5971749A · kind A · utility
Inventor
Key dates
| Filing date | Nov 25, 1998 |
| Grant date | Oct 26, 1999 |
| Priority date | — |
| Expiry date | Nov 25, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23Q2/46
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A safety disposable lighter includes an ignition means which includes a striker wheel has an axial polygonal driven hole provided therethrough, a wheel axle rotatably mounting between two supporting walls of a supporting frame and having an enlarged central engaging disc fittedly mounted at a center position of the driven hole of the striker wheel, and two driving wheels each having a polygonal driving disc integrally and coaxially protruded at an inner side thereof. Each of the driving wheels has an axial hole having a diameter larger than that of the wheel axle. Between the two supporting walls, the two driving wheels are rotatably mounted around two ends of the wheel axle respectively and the two driving discs are respectively inserted into two end portions of the driven hole, wherein each of the driving wheels has a diameter larger than a diameter of the striker wheel, and the polygonal driving disc of each driving wheel has a size smaller than the polygonal driven hole, so that the two driving wheels can normally free to rotate about the wheel axle unless a relatively strong depressing force is applied by an adult's finger to the two driving wheels to retain the two polygonal …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.