Thermally treating articles with particulate material and apparatus therefor
US4332605A · kind A · utility
7Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 20, 1980 |
| Grant date | Jun 1, 1982 |
| Priority date | — |
| Expiry date | Oct 20, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B27/052
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention provides a method and apparatus for treating articles with particulate material, for example for thermally toughening glass sheets. The particulate material consists of or contains permanently magnetized particles and is subjected to an electromagnetic field which travels linearly through the treatment space and is effective to sustain a dispersion of the particulate material in the treatment space. The article is contacted with that dispersion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.