Production apparatus for vapor-grown fine fibers
US5227142A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1991 |
| Grant date | Jul 13, 1993 |
| Priority date | — |
| Expiry date | Jul 29, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF27B9/26
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Production apparatus for vapor-grown fine fibers, comprising a vertical furnace and a horizontal furnace intersecting each other in an L-shaped configuration. Raw material and catalyst and carrier gas are injected into the top of the vertical furnace to form fine fibers that fall freely through the vertical furnace and land and rest on a conveyor in the horizontal furnace for conveying the fibers through the second furnace while the fibers grow in size. Gas and fibers are discharged from an end of the horizontal furnace remote from the vertical furnace. The horizontal furnace has second injecting structure injecting material for fiber growth but no catalyst into said horizontal furnace.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.