Welding furnace and viewport assembly
US9242313B2 · kind B2 · utility
0Cited by
13References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2012 |
| Grant date | Jan 26, 2016 |
| Priority date | — |
| Expiry date | Aug 16, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF27D2007/063
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A viewport assembly may allow viewing of a retort chamber while protecting the viewer from heat of the retort chamber through a high-temperature-resistant window in an end wall of the viewport assembly. An access port in the end wall may allow use of tools, such as a welding device. An insulated door between the viewport assembly and the retort chamber may enhance protection and heat retention. The assembly may enhance retention of inert atmosphere in the retort chamber as well as heat, facilitating work on superalloy articles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.