Method for breaking brittle rods or fibers
US3934773A · kind A · utility
41Cited by
4References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 2, 1973 |
| Grant date | Jan 27, 1976 |
| Priority date | — |
| Expiry date | Nov 2, 1993 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T225/325
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of breaking a rod of brittle material, such as a glass optical fiber, so as to yield a mirrorlike surface across the entire rod end is described. This is achieved by establishing a decreasing tensile stress across the cross section of the rod which, at all points, is greater than zero but less than the threshold stress at which a mist zone forms. This is conveniently achieved by simultaneously applying longitudinal tension to the rod and bending it. A convenient hand tool for breaking optical fibers is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.