US2827438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat storage media
Assignee: Honeywell International Inc
•
Filing: 1954-01-04
•
Granted: 1958-03-18
•
Expires: 1974-01-04
Abstract
No abstract record available.
Inventors
- 👤 Robert D Broadley
- 👤 Robert V Townend
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:08
CPC Classifications
G; G01; G01K; G01K11/00; G01K11/06; C; C09; C09K; C09K5/00; C09K5/02; C09K5/06; C09K5/063
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A HEAT STORAGE MEDIUM WHICH REVERSIBLY ACQUIRES SUBSTANTIAL CONTENT OF SOLID CRYSTALLINE DISODIUM PHOSPHATE DODECAHYDRATE AND ASSUMES SUBSTANTIALLY COMPLETELY LIQUID SOLUTION FORM WITHIN A PREDETERMINED, REPRODUCIBLE RANGE OF TRANSITION TEMPERATURE RESPECTIVELY UPON RELEASE OF HEAT THERFROM AND ABSORPTION OF HEAT THEREIN CONSISTING ESSENTIAL OF ONE HUNDRED PARTS BY WEIGHT OF DISODIUM PHOSPHATE, WATER IN AMOUNT FROM 150 TO 260 PARTS BY WEIGHT, TRISODIUM PHOSPHATE SUFFICIENT TO BRING THE RESULTING MIXTURE TO PH OF 8.3 TO 9.6 AND CARBON IN AMOUNT LESS THAN 50 PARTS BY WEIGHT.
Claim 2
Dependent Claim
86 words
A HEAT STORAGE MEDIUM WHICH REVERSIBLY ACQUIRES SUBSTANTIAL CONTENT OF SOLID CRYSTALLINE DISODIUM PHOSPHATE DODECAHYDRATE AND ASSUMES SUBSTANTIALLY COMPLETELY LIQUID SOLUTION FORM WITHIN A PREDETERMINED, REPRODUCIBLE RANGE OF TRANSITION TEMPERATURE RESPECTIVELY UPON RELEASE OF HEAT THERFROM AND ABSORPTION OF HEAT THEREIN CONSISTING ESSENTIAL OF ONE HUNDRED PARTS BY WEIGHT OF DISODIUM PHOSPHATE, WATER IN AMOUNT FROM 150 TO 260 PARTS BY WEIGHT, TRISODIUM PHOSPHATE SUFFICIENT TO BRING THE RESULTING MIXTURE TO PH OF 8.3 TO 9.6 AND CARBON IN AMOUNT LESS THAN 50 PARTS BY WEIGHT.
References Cited (Backward Citations)
US1787888A
Cited
US2089467A
Cited
US2355146A
Cited
US2515298A
Cited
US2677367A
Cited
US2677243A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-17 | 1961-09-16 | 1962-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-17 | 1965-09-16 | 1966-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-17 | 1969-09-16 | 1970-03-18 | $7700.00 | Window Closed / Lapsed |