US4859077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Precision calorimeter
Assignee: Individual
•
Filing: 1986-12-26
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Granted: 1989-08-22
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Expires: 2006-12-26
Abstract
Abstract A precision calorimeter which comprises a heater, an agitator and a detection bath which are disposed in a temperature controlled bath and in which gaps formed between them are filled with a liquid; and a detection unit placed in the detection bath, a gap formed therebetween being filled with a liquid; the detection unit being comprised of a detection element, a pipe for passing a sample therethrough provided with a mixer and a reference heater which are arranged between metallic pieces.
Inventors
- 👤 Shoziro Ito
- 👤 Akihiro Ito
- 👤 Hiroyasu Ito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:52
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/20; G01N25/48; G01N25/4846
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
97 words
A precision calorimeter comprising: a temperature-controlled bath container having a heater and an agitator; a detection bach container disposed in said temperature-controlled bath container, said detection bath container having a detection unit; said temperature-controlled bath container being filled with a liquid having a specific gravity less than the specific gravity of perfluorocarbon, and said detection bath container being filled with perfluorocarbon; and said detection unit including a detection element and pipe means for carrying a sample, said pipe means having a mixer and a reference heater, said mixer and said reference heater being positioned between metallic pieces.
Claim 2
Dependent Claim
97 words
A precision calorimeter comprising: a temperature-controlled bath container having a heater and an agitator; a detection bach container disposed in said temperature-controlled bath container, said detection bath container having a detection unit; said temperature-controlled bath container being filled with a liquid having a specific gravity less than the specific gravity of perfluorocarbon, and said detection bath container being filled with perfluorocarbon; and said detection unit including a detection element and pipe means for carrying a sample, said pipe means having a mixer and a reference heater, said mixer and said reference heater being positioned between metallic pieces.
Claim 3
Dependent Claim
88 words
A precision calorimeter comprising: a temperature-controlled bath container having a heater and an agitator; a detection bath container disposed in said temperature-controlled bath container, said detection bath container having a detection unit, said detection unit being separated from said detection bath container by a gap, said gap being filled with a liquid; and said detection unit including a detection element and pipe means for carrying a sample, said pipe means having a mixer and a reference heater, said mixer and said reference heater being positioned between metallic pieces.
Claim 4
Dependent Claim
88 words
A precision calorimeter comprising: a temperature-controlled bath container having a heater and an agitator; a detection bath container disposed in said temperature-controlled bath container, said detection bath container having a detection unit, said detection unit being separated from said detection bath container by a gap, said gap being filled with a liquid; and said detection unit including a detection element and pipe means for carrying a sample, said pipe means having a mixer and a reference heater, said mixer and said reference heater being positioned between metallic pieces.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-08-21 | 1993-02-20 | 1993-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-08-21 | 1997-02-20 | 1997-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-08-21 | 2001-02-20 | 2001-08-22 | $7700.00 | Window Closed / Lapsed |