Process for making loose buffer tubes having controlled excess fiber length and reduced post-extrusion shrinkage
US8489219B1 · kind B1 · utility
5Cited by
67References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2010 |
| Grant date | Jul 16, 2013 |
| Priority date | — |
| Expiry date | Nov 8, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2948/92523
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Disclosed is an improved buffering method for controlling excess fiber length (EFL) and reducing post-extrusion shrinkage in loose buffer tubes. In this way, the method yields first-quality loose buffer tubes not only during steady-state operation but also during ramping, thereby increasing production efficiency and reducing waste.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.