Patent US4859077A successfully refreshed from Google Patents.
US4859077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Precision calorimeter
Assignee: Individual
•
Filing: 1986-12-26
•
Granted: 1989-08-22
•
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 19:06
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.
References Cited (Backward Citations)
US2733602A
Cited
US3392570A
Cited
US4021307A
Cited
US4379775A
Cited
DE3049105A1
Cited
US4492480A
Cited
US4457252A
Cited
US4511263A
Cited
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 |