Heat treatment tunnel kiln for products having a circular cross-section
US3982888A · kind A · utility
5Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 21, 1975 |
| Grant date | Sep 28, 1976 |
| Priority date | — |
| Expiry date | Jul 21, 1995 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF27D2003/0097
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Heat treatment tunnel kiln for products having a circular cross-section, comprising a main heat treatment zone for circulating tubes or bars perpendicular to their axis, ensuring the rolling of the tubes or bars inside the supports, and zones for circulating the supports parallel to their axis, connected to flow circuits for gases different from those in the main zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.