Method for producing pulling rods for use in manufacturing sheet glass
US7284328B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 19, 2005 |
| Grant date | Oct 23, 2007 |
| Priority date | — |
| Expiry date | Apr 22, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49556
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Pulling rolls (13) for glass ribbons (11) and methods for manufacturing such rolls are provided. The rolls include a shaft (17), a plurality of heat-resistant discs (15) mounted on the shaft in face-to-face contact, and a pair of fittings (25 or 25,31) affixed to the shaft which apply an axial compressive force to the discs. The magnitude of the axial compressive force is adjusted so that the portions (27) of the roll surface (33) which contact the glass ribbon during use have a Shore D hardness at room temperature of between 30 and 55. The rolls achieve a long service life without applying excessive force to the glass ribbon or generating high levels of particulate contamination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.