Flame spray torch for use with spray materials in powder or wire form
US4784321A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 23, 1986 |
| Grant date | Nov 15, 1988 |
| Priority date | — |
| Expiry date | Dec 23, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B7/201
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A flame spray torch which comprises a torch body and a torch head exchangeably connected with each other. Injectors are inserted in recesses of the torch body partly projecting therefrom and extending into recesses of the torch head. Each injector communicates with a respective supply duct for combustion gas and oxidation gas, mixing chambers being provided respectively in each injector and in the torch head, the latter being provided with means to improve the gas mixing. The torque reduces the risk of back-firing and allows the attainment of optimum spraying conditions for a great variety of applications by permitting an easy exchange, particularly with respect to the injectors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.