Rotary fiberizer
US8250884B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2008 |
| Grant date | Aug 28, 2012 |
| Priority date | — |
| Expiry date | Jun 26, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B37/048
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of forming fibers from molten mineral material is provided. The method comprising the steps of: rotating a spinner having an orificed peripheral wall, the orificed peripheral wall having a top row of orifices, introducing molten mineral material to the spinner to create a fan of primary glass fibers, creating an annular combustion flow of heated gas and directing the annular combustion flow of heated gas substantially through the primary fibers, creating an annular flow of attenuating air with an annular blower, the annular flow of attenuating air being sufficient to attenuate the primary fibers into secondary fibers, directing the annular combustion flow of heated gas and the annular flow of attenuating air so that they are radially spaced apart at the level of the top row of orifices, and directing the annular combustion flow of heated gas and the annular flow of attenuating air so that they are brought together at a position below the top row of orifices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.