Electric induction gas-sealed tunnel furnace
US9400136B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | May 24, 2011 |
| Grant date | Jul 26, 2016 |
| Priority date | — |
| Expiry date | Feb 23, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/25
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An electric induction gas-sealed tunnel furnace and process are provided. The exterior of the furnace's enclosure that forms a closed tunnel region is surrounded at least along its longitudinal length by a gas-tight barrier chamber that can be filled with a barrier gas to a different pressure than the pressure of the process gas in the closed tunnel region of the furnace. The inductors used to induction heat strips or plates in the closed tunnel region can be positioned within or outside of the gas-tight barrier chamber around the longitudinal length of the closed tunnel region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.