Method for making glass tubing with multiple bores
US6810691B2 · kind B2 · utility
3Cited by
17References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2002 |
| Grant date | Nov 2, 2004 |
| Priority date | — |
| Expiry date | May 15, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S65/09
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of making glass tubing includes assembling together a first glass rod having at least one bore and a second glass rod having at least one bore to form a single glass unit, shaping an outer surface of the glass unit to a desired cross-section, and drawing the glass unit to form a glass tubing having a predetermined outer and inner dimension.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.