US3365944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adiabatic calorimeter
Assignee: Dynatech Corp
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Filing: 1965-09-13
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Granted: 1968-01-30
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Expires: 1985-09-13
Abstract
No abstract record available.
Inventors
- 👤 Lawrence C Hoagland
- 👤 Winter Francis De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:36
CPC Classifications
G; G01; G01K; G01K17/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
CALORIMETRIC APPARATUS COMPRISING IN COMBINATION (A) SAMPLE-ENCLOSING SUPPORT MEANS HAVING AN ELECTRIC HEATER FOR APPLYING HEAT TO A SAMPLE THEREIN, (B) MEANS FORMING AN ADIABATIC SHIELD (1) HAVING BOTTOM , TOP AND SIDE WALLS, (2) SAID WALLS BEING OF HEAT CONDUCTIVE MATERIAL WITH SUFFICIENT THICKNESS TO MAINTAIN THE INNER SURFACES THEREOF AT SUBSTANTIALLY UNIFORM TEMPERATURES WHEN THE HEAT INPUT TO, AND HEAT LOSS FROM THE WALL OUTER SURFACES VARIES ALONG SAID WALLS, (C) ELECTRICAL CONDUCTORS EXTENDING THROUGH SAID WALLS TO SAID ELECTRIC HEATER AND SUSPENDING SAID SAMPLE SUPPORT WITHIN SAID ADIABATIC SHIELD SPACED FROM SAID WALLS THEREOF, (D) ELECTRIC HEATER WIRES SECURED TO SAID ADIABATIC SHIELD FOR APPLYING HEAT TO SAID WALLS THEREOF, (E) A RADIATION SHIELD (1) HAVING HEAT-REFLECTIVE WALLS, (2) CONTAINING AND SPACED FROM SAID ADIABATIC SHIELD, AND (F) VACUUM ENCLOSURE MEANS ENCLOSING SAID RADIATION SHIELD FOR MAINTAINING A REDUCED PRESSURE WITHIN SAID APPARATUS.
Claim 2
Dependent Claim
146 words
CALORIMETRIC APPARATUS COMPRISING IN COMBINATION (A) SAMPLE-ENCLOSING SUPPORT MEANS HAVING AN ELECTRIC HEATER FOR APPLYING HEAT TO A SAMPLE THEREIN, (B) MEANS FORMING AN ADIABATIC SHIELD (1) HAVING BOTTOM , TOP AND SIDE WALLS, (2) SAID WALLS BEING OF HEAT CONDUCTIVE MATERIAL WITH SUFFICIENT THICKNESS TO MAINTAIN THE INNER SURFACES THEREOF AT SUBSTANTIALLY UNIFORM TEMPERATURES WHEN THE HEAT INPUT TO, AND HEAT LOSS FROM THE WALL OUTER SURFACES VARIES ALONG SAID WALLS, (C) ELECTRICAL CONDUCTORS EXTENDING THROUGH SAID WALLS TO SAID ELECTRIC HEATER AND SUSPENDING SAID SAMPLE SUPPORT WITHIN SAID ADIABATIC SHIELD SPACED FROM SAID WALLS THEREOF, (D) ELECTRIC HEATER WIRES SECURED TO SAID ADIABATIC SHIELD FOR APPLYING HEAT TO SAID WALLS THEREOF, (E) A RADIATION SHIELD (1) HAVING HEAT-REFLECTIVE WALLS, (2) CONTAINING AND SPACED FROM SAID ADIABATIC SHIELD, AND (F) VACUUM ENCLOSURE MEANS ENCLOSING SAID RADIATION SHIELD FOR MAINTAINING A REDUCED PRESSURE WITHIN SAID APPARATUS.
References Cited (Backward Citations)
US3267728A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-29 | 1971-07-31 | 1972-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-29 | 1975-07-31 | 1976-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-29 | 1979-07-31 | 1980-01-30 | $7700.00 | Window Closed / Lapsed |