Patent US2824664A successfully refreshed from Google Patents.
US2824664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame-resistant seal for fuel tanks
Assignee: Boeing Co
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Filing: 1956-03-05
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Granted: 1958-02-25
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Expires: 1976-03-05
Abstract
No abstract record available.
Inventors
- 👤 French Charles Kenneth
- 👤 Robert J Dunsmoor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:54
CPC Classifications
B; B64; B64D; B64D37/00; B64D37/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A FLAME-RESISTANT SEAL FOR THE JOINT OF AN INTEGRAL AIRPLANE FUEL TANK, WHEREIN ONE WALL JOINS A SECOND WALL TO SEPARATE A DRY BAY FROM A WET BAY COMPRISING TWO BEADS OF THIOKOL OR THE LIKE APPLIED IN PLASTIC FORM ALONG THE INTERIOR AND ALONG THE EXTERIOR OF SUCH JOINT, RESPECTIVELY, A SMALL-MESH GLASS CLOTH WEB IN THE FORM OF A TAPE APPLIED TO AND PARTIALLY EMBEDDED WITHIN THE EXPOSED SURFACE OF EACH THIOKOL BEAD, AND AT ITS EDGES EXTENDING BEYOND THE BEAD''S EDGES INTO CONTACTWITH THE WALLS, AND A COATING OF NEOPRENE OR THE LIKE LIKEWISE APPLIED IN PLASTIC FORM TO AN PARTIALLY EMBEDDING THE EXPOSED SURFACE OF EACH GLASS MESH TAPE, AND AT ITS EDGES EXTENDING BEYONG THE TAPE''S EDGES INTO CONTACT THE WALLS.
Claim 2
Dependent Claim
126 words
A FLAME-RESISTANT SEAL FOR THE JOINT OF AN INTEGRAL AIRPLANE FUEL TANK, WHEREIN ONE WALL JOINS A SECOND WALL TO SEPARATE A DRY BAY FROM A WET BAY COMPRISING TWO BEADS OF THIOKOL OR THE LIKE APPLIED IN PLASTIC FORM ALONG THE INTERIOR AND ALONG THE EXTERIOR OF SUCH JOINT, RESPECTIVELY, A SMALL-MESH GLASS CLOTH WEB IN THE FORM OF A TAPE APPLIED TO AND PARTIALLY EMBEDDED WITHIN THE EXPOSED SURFACE OF EACH THIOKOL BEAD, AND AT ITS EDGES EXTENDING BEYOND THE BEAD''S EDGES INTO CONTACTWITH THE WALLS, AND A COATING OF NEOPRENE OR THE LIKE LIKEWISE APPLIED IN PLASTIC FORM TO AN PARTIALLY EMBEDDING THE EXPOSED SURFACE OF EACH GLASS MESH TAPE, AND AT ITS EDGES EXTENDING BEYONG THE TAPE''S EDGES INTO CONTACT THE WALLS.
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) | 1961-02-24 | 1961-08-26 | 1962-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-24 | 1965-08-26 | 1966-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-24 | 1969-08-26 | 1970-02-25 | $7700.00 | Window Closed / Lapsed |