Heater cable installation
US4572299A · kind A · utility
327Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1984 |
| Grant date | Feb 25, 1986 |
| Priority date | — |
| Expiry date | Oct 30, 2004 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B36/04
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A well heater is installed in a well by spooling electrical cable assemblies for heating and supplying power, in proper sequence, on at least one spooling means, unspooling them and attaching them to a heat- and tension-stable support means as the resulting assembly is drawn into the well by a weight attached to the support means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.