Patent US4154085A successfully refreshed from Google Patents.
US4154085A
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Method of differential thermal analysis
Assignee: PE Manufacturing GmbH
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Filing: 1978-01-18
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Granted: 1979-05-15
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Expires: 1998-01-18
Abstract
Abstract In a method of differential thermal analysis (DTA), an original sample is divided into at least two part samples and one or more part samples are tempered at temperatures below the lowest temperature occurring during DTA at the beginning of decomposition. The differential thermal analysis is then carried out on tempered and untempered samples and the DTA curves are compared with each other.
Inventors
- 👤 Gunter Hentze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:35
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/20; G01N25/48; G01N25/4846; G01N25/4866; G01K; G01K3/00; G01K3/08; G01K3/14
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
78 words
A method of differential thermal analysis in which a sample is heated at a constant heating rate and the reaction or decomposition heat occurring in the sample is measured continuously, wherein an original sample is divided into at least two part samples, one or more part samples are tempered at temperatures below the lowest temperature at which decomposition begins during differential thermal analysis, and the differential thermal analysis of tempered and untempered samples are compared with each other.
Claim 2
Independent Claim
78 words
A method of differential thermal analysis in which a sample is heated at a constant heating rate and the reaction or decomposition heat occurring in the sample is measured continuously, wherein an original sample is divided into at least two part samples, one or more part samples are tempered at temperatures below the lowest temperature at which decomposition begins during differential thermal analysis, and the differential thermal analysis of tempered and untempered samples are compared with each other.
Claim 3
Dependent Claim
16 words
A method according to claim 1, wherein the various part samples are tempered at different temperatures.
Claim 4
Dependent Claim
20 words
A method according to claim 1, wherein the various part samples are tempered at the same temperature for different periods.
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) | 1982-05-14 | 1982-11-13 | 1983-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-14 | 1986-11-13 | 1987-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-14 | 1990-11-13 | 1991-05-15 | $7700.00 | Window Closed / Lapsed |