Advanced gas torch
US8303298B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2009 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | Sep 17, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23D2900/00006
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A gas torch is provided that includes an auto-ignition system disposed within the gas torch, a preheat oxygen conduit array extending through the gas torch, a fuel gas conduit array extending through the gas torch, and a cutting oxygen conduit array extending through the gas torch. At least one safety device is disposed within the gas torch, such as check valves and flashback arrestors, by way of example. The gas torch also includes a cutting oxygen trigger and an ignition trigger operable to start preheat gas flow and to ignite the gas torch. The ignition trigger is configured for automatic disengagement of the auto-ignition system when the ignition trigger is released.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.