Self-healing cable for extreme environments

Details Self-healing cable for extreme environments Self-healing cable for extreme environments

2007-05-15

2009-08-04

Nguyen, Chau N (Department: 2831)

Electricity: conductors and insulators

Conduits, cables or conductors

Insulated

Reexamination Certificate

active

07569774

ABSTRACT:
Self-healing cable apparatus and methods disclosed. The self-healing cable has a central core surrounded by an adaptive cover that can extend over the entire length of the self-healing cable or just one or more portions of the self-healing cable. The adaptive cover includes an axially and/or radially compressible-expandable (C/E) foam layer that maintains its properties over a wide range of environmental conditions. A tape layer surrounds the C/E layer and is applied so that it surrounds and axially and/or radially compresses the C/E layer. When the self-healing cable is subjected to a damaging force that causes a breach in the outer jacket and the tape layer, the corresponding localized axially and/or radially compressed portion of the C/E foam layer expands into the breach to form a corresponding localized self-healed region. The self-healing cable is manufacturable with present-day commercial self-healing cable manufacturing tools.

REFERENCES:
patent: 4145567 (1979-03-01), Bahder et al.
patent: 4270961 (1981-06-01), Faranetta et al.
patent: 4468435 (1984-08-01), Shimba et al.

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