Isolated tracer having controlled conductance rate and method of making same
US6905566B1 · kind B1 · utility
14Cited by
8References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 5, 2000 |
| Grant date | Jun 14, 2005 |
| Priority date | — |
| Expiry date | May 5, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1013
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An isolated tracer includes an elongated tube, a layer of insulation covering the tube, and a layer of tape compressing the insulation to provide a desired conductance rate for the isolated tracer. The isolated tracer is made by passing a pipe concurrently through a funnel-shaped die with a layer of insulation and wrapping tape around the insulation after it leaves the die. The insulation is compressed to a desired amount to provide a desired conductance rate by adjusting tension on the tape as it is wound about the insulation covering the tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.