Refractory roof construction for the heating chamber of an industrial furnace
US3976424A · kind A · utility
2Cited by
8References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 18, 1975 |
| Grant date | Aug 24, 1976 |
| Priority date | — |
| Expiry date | Feb 18, 1995 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF27D2099/0008
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The roof of an elongated heating chamber of a refractory walled industrial furnace includes a plurality of transverse rafters which are spaced along the chamber, and each rafter is formed of a pair of arch bricks and an arch key brick between the inner ends thereof. A plurality of longitudinally extending roof bricks are supported between successive rafters by the means of notches in the ends of the roof bricks which rest upon horizontal surfaces defined on the central portion of each rafter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.