Torch with weighted safety snuffer
US9951953B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 8, 2015 |
| Grant date | Apr 24, 2018 |
| Priority date | — |
| Expiry date | Jun 13, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21V37/002
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A device includes a flame bowl with a snuffer sleeve situated therein. The snuffer sleeve has a lowered position allowing a wick to burn freely and a raised position wherein the sleeve impedes oxygen flow to the wick, the snuffer sleeve being biased toward the raised position. A shelf extends from the snuffer sleeve to receive a movable weight that rests on the shelf when the flame bowl is upright and the snuffer sleeve is moved to the lowered position. The movable weight retains the snuffer sleeve in the lowered position while the flame bowl remains upright but moves to allow the snuffer sleeve to extend to the raised position when the flame bowl departs from the upright position more than a predetermined amount.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.