US3357589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suspension system for multi-walled storage tank
Assignee: Essex Cryogenics Inc
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Filing: 1965-12-27
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Granted: 1967-12-12
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Expires: 1985-12-27
Abstract
No abstract record available.
Inventors
- 👤 Roy H Spaulding
- 👤 Fred P Snyder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:42
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/08; F17C13/088; F17C2203/00; F17C2203/01; Y; Y10; Y10S; Y10S220/00; Y10S220/901; Y10S220/918; Y10S220/92
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
IN A MULTI-WALLED CONTAINER HAVING AN OUTER VESSEL, AN INNER VESSEL DISPOSED WITHIN SAID OUTER VESSEL AND BEING OF LESS DIAMETER THAN SAID OUTER VESSEL FOR CREATING AN INTERVENING INSULATING SPACE BETWEEN SAID VESSEL, SUSPENSION MEANS DISPOSED WITHIN SAID INSULATING SPACE FOR MAINTAINING SAID INNER VESSEL IN SPACED RELATIONSHIP TO SAID OUTER VESSEL, SAID SUSPENSION MEANS COMPRISING A PLURALITY OF SPACED-APART SPRING MOUNTS, EACH SPRING MOUNT COMPRISING A PAIR OF HOLLOW PARTI-SPHERICAL MEMBERS WITH THEIR CONVEX FACES TOWARD EACH OTHER AND THEIR CONCAVE FACES OPENING AWAY FROM EACH OTHER AND MEANS BETWEEN SAID CONVEX FACES INTERENGAGING SAID MEMBERS FOR INTEGRATING SAME INTO A UNIT.
Claim 2
Dependent Claim
104 words
IN A MULTI-WALLED CONTAINER HAVING AN OUTER VESSEL, AN INNER VESSEL DISPOSED WITHIN SAID OUTER VESSEL AND BEING OF LESS DIAMETER THAN SAID OUTER VESSEL FOR CREATING AN INTERVENING INSULATING SPACE BETWEEN SAID VESSEL, SUSPENSION MEANS DISPOSED WITHIN SAID INSULATING SPACE FOR MAINTAINING SAID INNER VESSEL IN SPACED RELATIONSHIP TO SAID OUTER VESSEL, SAID SUSPENSION MEANS COMPRISING A PLURALITY OF SPACED-APART SPRING MOUNTS, EACH SPRING MOUNT COMPRISING A PAIR OF HOLLOW PARTI-SPHERICAL MEMBERS WITH THEIR CONVEX FACES TOWARD EACH OTHER AND THEIR CONCAVE FACES OPENING AWAY FROM EACH OTHER AND MEANS BETWEEN SAID CONVEX FACES INTERENGAGING SAID MEMBERS FOR INTEGRATING SAME INTO A UNIT.
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) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |