Resistance furnace with tubular heating element
US7006552B2 · kind B2 · utility
0Cited by
8References
42Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2002 |
| Grant date | Feb 28, 2006 |
| Priority date | — |
| Expiry date | Jan 24, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF27D2099/001
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A resistance furnace has a tubular heating element with a vertically-oriented longitudinal axis. The heating element has a shell surface defined by an upper side and a lower side and surrounding a furnace chamber. The heating element is connected to at least two supply terminals by which heating current is introduced at power supply points into the heating element. The supply terminals include a surrounding upper annular collar adjacent the upper side of the shell surface, and also a surrounding lower annular collar adjacent the lower side of the shell surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.