Heat recoverable article
US4990380A · kind A · utility
7Cited by
4References
38Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 8, 1988 |
| Grant date | Feb 5, 1991 |
| Priority date | — |
| Expiry date | Sep 8, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1331
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A tubular heat recoverable article comprises conductive polymeric material and is heated to effect recovery by the passage of electrical current therethrough. Elongate electrodes are attached on the surface or embedded in longitudinal flanges extending along the article. The flanges also comprise conductive polymeric material but are not heat recoverable, and therefore remain substantially undeformed on recovery other than bending to accommodate transitions. This means that the contact resistance between the electrode and the conductive material of the flange does not increase significantly on recovery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.