Patent US3194071A successfully refreshed from Google Patents.
US3194071A
Expired / Lapsed
US
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Heat flow meter
Assignee: Armstrong World Industries Inc
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Filing: 1962-03-14
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Granted: 1965-07-13
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Expires: 1982-03-14
Abstract
No abstract record available.
Inventors
- 👤 Jr Nathaniel E Hager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:04
CPC Classifications
G; G01; G01K; G01K17/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A HEAT FLOW METER COMPRISED OF (1) A UNIFORMLY THIN CORE OF INSULATING MATERIAL BETWEEN WHOSE MAJOR SURFACES HEAT IS TRANSMITTED EVERYWHERE AT THE SAME RATE PER UNIT AREA, (2) A PLURALITY OF SUBSTANTIALLY IDENTICAL METAL PLATELETS OF A METAL HAVING A THERMAL CONDUCTIVITY GREATER THAN 500 B.T.U-INCHES/HR.-FT.2-*F. ARRANGED ON THE OPPOSITE MAJOR SURFACES OF SAID CORE AND WIRE LEADS OF A METAL, WHICH DEVELOPS A THERMOELECTRIC E.M.F. IN JUNCTION WITH A PLATELET, CONNECTITNG IN PAIRS PLATELETS ON OPPOSITE SURFACES IN THE CENTRAL REGION THEREOF AND EXTENDING THEREBETWEEN IN NON-ELECTRICAL CONTACT TO FORM A PLURALITY OF DIFFERENTIAL THEREMOCOUPLES, THE DISTANCE FROM THE CENTER OF SAID PLATELETS TO THE NEAREST EDGES THEREOF BEING EQUAL TO OR GREATER THAN THREE TIMES THE THICKNESS OF THE CORE,
Claim 2
Dependent Claim
124 words
A HEAT FLOW METER COMPRISED OF (1) A UNIFORMLY THIN CORE OF INSULATING MATERIAL BETWEEN WHOSE MAJOR SURFACES HEAT IS TRANSMITTED EVERYWHERE AT THE SAME RATE PER UNIT AREA, (2) A PLURALITY OF SUBSTANTIALLY IDENTICAL METAL PLATELETS OF A METAL HAVING A THERMAL CONDUCTIVITY GREATER THAN 500 B.T.U-INCHES/HR.-FT.2-*F. ARRANGED ON THE OPPOSITE MAJOR SURFACES OF SAID CORE AND WIRE LEADS OF A METAL, WHICH DEVELOPS A THERMOELECTRIC E.M.F. IN JUNCTION WITH A PLATELET, CONNECTITNG IN PAIRS PLATELETS ON OPPOSITE SURFACES IN THE CENTRAL REGION THEREOF AND EXTENDING THEREBETWEEN IN NON-ELECTRICAL CONTACT TO FORM A PLURALITY OF DIFFERENTIAL THEREMOCOUPLES, THE DISTANCE FROM THE CENTER OF SAID PLATELETS TO THE NEAREST EDGES THEREOF BEING EQUAL TO OR GREATER THAN THREE TIMES THE THICKNESS OF THE CORE,
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) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |