US4582094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulation for hot gas piping
Assignee: Interatom Internationale Atomreaktorbau GmbH
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Filing: 1983-06-10
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Granted: 1986-04-15
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Expires: 2003-06-10
Abstract
Abstract A pipeline carrying high-temperature fluids and having an inner conduction pipe, an outer pressure pipe and ceramic insulation disposed between the inner and outer pipes and formed of individual sections being spaced apart defining gaps therebetween, includes ceramic insulating rings formed of woven insulating fiber filling the gaps between the sections of the ceramic insulation, the rings being concentrically disposed one against the other on the inner pipe and having doubled-over edges.
Inventors
- 👤 Dieter Stausebach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:22
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/14; F16L59/147; F16L59/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
76 words
In a pipeline carrying high-temperature fluids and having an inner conduction pipe, an outer pressure pipe and ceramic insulation disposed between the inner and outer pipes and formed of individual sections being spaced apart defining gaps therebetween, the improvement comprising ceramic insulating rings formed of woven insulating fiber filling the gaps between the sections of the ceramic insulation, said rings being concentrically disposed one against the other on the inner pipe and having doubled-over peripheral edges.
Claim 2
Dependent Claim
76 words
In a pipeline carrying high-temperature fluids and having an inner conduction pipe, an outer pressure pipe and ceramic insulation disposed between the inner and outer pipes and formed of individual sections being spaced apart defining gaps therebetween, the improvement comprising ceramic insulating rings formed of woven insulating fiber filling the gaps between the sections of the ceramic insulation, said rings being concentrically disposed one against the other on the inner pipe and having doubled-over peripheral edges.
Claim 3
Dependent Claim
30 words
Pipeline according to claim 1, wherein said rings each have a moven structure with a grain, said grain in each of said rings being angularly offset relative to each other.
Claim 4
Dependent Claim
18 words
Pipeline according to claim 1, wherein said rings are oriented perpendicular to the axial direction of the pipes.
References Cited (Backward Citations)
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Cited
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US3213889A
Cited
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Cited
US4237668A
Cited
US4363504A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-04-14 | 1989-10-14 | 1990-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-14 | 1993-10-14 | 1994-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-14 | 1997-10-14 | 1998-04-15 | $7700.00 | Window Closed / Lapsed |