US3116850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube seal for floating roof storage tank
Assignee: Pittsburgh Des Moines Steel Co
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Filing: 1962-04-12
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Granted: 1964-01-07
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Expires: 1982-04-12
Abstract
No abstract record available.
Inventors
- 👤 Sr Lloyd E Anderson
- 👤 Buckwalter Milton Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:26
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/34; B65D88/42; B65D88/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
IN A FLOATING ROOF STORAGE TANK, A SEAL FOR SEALING THE ANNULAR SPACE BETWEEN THE ROOF AND TANK SHELL, COMPRISING A FLEXIBLE TUBE DISPOSED IN THE ANNULAR SPACE, TUBE SUPORTING MEANS THAT INCLUDE CIRCUMFENTIALLY SPACED HANGER RODS EACH HAVING ONE END PIVOTALLY CONNECTED TO THE ROOF AND HAVING THE OTHER END PASSING THROUGH TOP AND BOTTOM PORTIONS OF THE TUBE AND CONNECTED TO A HORIZONTAL RING BAR UNDERLYING AND SUPPORTING THE TUBE BETWEEN ADJACENT HANGER RODS, THE RING BAR DIVIDING THE BOTTOM PORTION OF THE TUBE INTO TWO NORMALLY DEPENDING
Claim 2
Dependent Claim
90 words
IN A FLOATING ROOF STORAGE TANK, A SEAL FOR SEALING THE ANNULAR SPACE BETWEEN THE ROOF AND TANK SHELL, COMPRISING A FLEXIBLE TUBE DISPOSED IN THE ANNULAR SPACE, TUBE SUPORTING MEANS THAT INCLUDE CIRCUMFENTIALLY SPACED HANGER RODS EACH HAVING ONE END PIVOTALLY CONNECTED TO THE ROOF AND HAVING THE OTHER END PASSING THROUGH TOP AND BOTTOM PORTIONS OF THE TUBE AND CONNECTED TO A HORIZONTAL RING BAR UNDERLYING AND SUPPORTING THE TUBE BETWEEN ADJACENT HANGER RODS, THE RING BAR DIVIDING THE BOTTOM PORTION OF THE TUBE INTO TWO NORMALLY DEPENDING
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) | 1967-01-06 | 1967-07-08 | 1968-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-06 | 1971-07-08 | 1972-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-06 | 1975-07-08 | 1976-01-07 | $7700.00 | Window Closed / Lapsed |