US3083537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage of normally gaseous material in underground caverns
Assignee: Sunoco Inc
•
Filing: 1961-01-23
•
Granted: 1963-04-02
•
Expires: 1981-01-23
Abstract
No abstract record available.
Inventors
- 👤 Patrick F Dougherty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:48
CPC Classifications
B; B65; B65G; B65G5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
IN THE STORAGE OF A NORMALLY GASEOUS WATER-INSOLUBLE MATERIAL IN AN UNDERGROUND CAVERN THE WALLS OF WHICH NORMALLY HAVE A TEMPERATURE ABOVE THE CRITICAL TEMPERATURE OF SAID MATERIAL, THE METHOD OF STORING SAID MATERIAL IN LIQUID PHASE WHICH COMPRISES FILLING THE CAVERN WITH A COLD AQUEOUS SALT SOLUTION HAVING A FREEZING POINT SUBSTANTIALLY BELOW SAID CRITICAL TEMPERATURE, CIRCULATING SUCH SALT SOLUTION AT A TEMPERATURE BETWEEN ITS FREEZING POINT AND SAID CRITICAL TEMPERATURE THROUGH THE CAVERN UNTIL THE TEMPERATURE OF THE CAVERN WALLS HAS APPROACHED THE TEMPERATURE OF THE SALT SOLUTION, DISPLACING SALT SOLUTION FROM
Claim 2
Dependent Claim
94 words
IN THE STORAGE OF A NORMALLY GASEOUS WATER-INSOLUBLE MATERIAL IN AN UNDERGROUND CAVERN THE WALLS OF WHICH NORMALLY HAVE A TEMPERATURE ABOVE THE CRITICAL TEMPERATURE OF SAID MATERIAL, THE METHOD OF STORING SAID MATERIAL IN LIQUID PHASE WHICH COMPRISES FILLING THE CAVERN WITH A COLD AQUEOUS SALT SOLUTION HAVING A FREEZING POINT SUBSTANTIALLY BELOW SAID CRITICAL TEMPERATURE, CIRCULATING SUCH SALT SOLUTION AT A TEMPERATURE BETWEEN ITS FREEZING POINT AND SAID CRITICAL TEMPERATURE THROUGH THE CAVERN UNTIL THE TEMPERATURE OF THE CAVERN WALLS HAS APPROACHED THE TEMPERATURE OF THE SALT SOLUTION, DISPLACING SALT SOLUTION FROM
References Cited (Backward Citations)
US2932170A
Cited
US2961840A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |