US3125346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of sealing the space between the wall
Assignee: —
•
Filing: —
•
Granted: 1964-03-17
•
Expires: 1981-03-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:20
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/34; B65D88/42; B65D88/50; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/4984; Y10T29/49861
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A METHOD OF MAKING A SEAL FOR SEALING THE SPACE BETWEEN THE WALL OF A STORAGE TANK AND A FLOATING ROOF WHICH COMPRISES: SECURING A FLEXIBLE AND FLUID IMPERVIOUS SHEATHING TO SAID ROOF; INTRODUCING A POLYISOCYANATE COMPOUND TOGETHER WITH A SUITABLE CATALYST INTO THE INTERIOR OF SAID SHEATHING, WHEN SAID ROF WITH THE SHEATHING SECURED THERETO IS POSITIONED IN SAID TANK; AN EXPANDING SAID SHEATHING AND COMPRESSING THE EXTERIOR SURFACE OF SAID SHEATHING INTO YIELDABLE SEALING ENGAGEMENT WITH SAID WALL BY THE REACTION OF THE POLYISOCYANATE COMPOUND WITH SAID CATALYST TO PRODUCE AN ENLARGED FOAM CORE.
Claim 2
Independent Claim
96 words
A METHOD OF MAKING A SEAL FOR SEALING THE SPACE BETWEEN THE WALL OF A STORAGE TANK AND A FLOATING ROOF WHICH COMPRISES: SECURING A FLEXIBLE AND FLUID IMPERVIOUS SHEATHING TO SAID ROOF; INTRODUCING A POLYISOCYANATE COMPOUND TOGETHER WITH A SUITABLE CATALYST INTO THE INTERIOR OF SAID SHEATHING, WHEN SAID ROF WITH THE SHEATHING SECURED THERETO IS POSITIONED IN SAID TANK; AN EXPANDING SAID SHEATHING AND COMPRESSING THE EXTERIOR SURFACE OF SAID SHEATHING INTO YIELDABLE SEALING ENGAGEMENT WITH SAID WALL BY THE REACTION OF THE POLYISOCYANATE COMPOUND WITH SAID CATALYST TO PRODUCE AN ENLARGED FOAM CORE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-17 | 1967-09-16 | 1968-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-17 | 1971-09-16 | 1972-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-17 | 1975-09-16 | 1976-03-17 | $7700.00 | Window Closed / Lapsed |