US4756200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Probe for extracting hot sample gas
Assignee: Primetals Technologies Austria GmbH
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Filing: 1987-03-25
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Granted: 1988-07-12
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Expires: 2007-03-25
Abstract
Abstract A probe for extracting a hot gas sample comprises an inner tube for conducting the hot gas sample and a cooling jacket surrounding the inner tube. A heating element surrounds the inner tube and the heated inner tube is shielded from the cooling jacket by an interposed heat insulation.
Inventors
- 👤 Wolfgang Ramsner
- 👤 Karl Ruemer
- 👤 Kurt Holzl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:20
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/22; G01N1/2247; G01N1/2258; G01N1/2202; G01N1/2205; G01N2001/2261
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A probe for extracting a hot sample gas, which comprises an inner tube for conducting the hot sample gas, a jacket surrounding the inner tube and adapted to conduct a liquid coolant, and the improvement comprising heating means for the inner tube and heat insulation means disposed between said inner tube and said jacket, the heating means being disposed between the jacket and the heat insulation means.
Claim 2
Dependent Claim
67 words
A probe for extracting a hot sample gas, which comprises an inner tube for conducting the hot sample gas, a jacket surrounding the inner tube and adapted to conduct a liquid coolant, and the improvement comprising heating means for the inner tube and heat insulation means disposed between said inner tube and said jacket, the heating means being disposed between the jacket and the heat insulation means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-07-12 | 1992-01-11 | 1992-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-12 | 1996-01-11 | 1996-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-12 | 2000-01-11 | 2000-07-12 | $7700.00 | Window Closed / Lapsed |