Cable sheath repair method
US4497760A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 2, 1983 |
| Grant date | Feb 5, 1985 |
| Priority date | — |
| Expiry date | Mar 2, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C61/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of repairing damage to the sheath of a communications cable in which a heat shrinkable material is wrapped around the communications cable to bridge across the damaged area of the sheath. A flexible strip heater having a base with a heating element in a portion of its width and a parallel insulating layer overlying only a portion of the base is wrapped in a spiral around the heat shrinkable material with the portion having the insulating layer wrapped on the portion of the previous turn not having the insulating layer. The insulating layer substantially abuts itself in adjacent turns of the heater to position the portions of the base containing the heating element adjacent each other along the heat shrinkable material. The heating element is activated to cause the heat shrinkable tape to shrink tightly onto the communications cable to cover the damaged portion of the sheath and, the flexible strip heater is then removed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.