Water blocked cable portion and methods of making same
US5217808A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 29, 1989 |
| Grant date | Jun 8, 1993 |
| Priority date | — |
| Expiry date | Nov 29, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2964
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical cable portion (10), resident within a cable closure (14), is caused to receive a water blocking arrangement which is effective to prevent water, which enters an internal cable portion (24) through an unintended cut (21) in an outer jacket (18) of a cable portion (20), from entering an interior of the cable closure. A plurality of water blocking materials (30 and 32) are coaxially disposed about the outer jacket and a core tube (26) of the cable portion, respectively, and cooperate with a heat shrinkable plastic tube (34) which substantially covers the water blocking materials to prevent the movement of water from the internal cable portion past the water blocking materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.