Patent US3491694A successfully refreshed from Google Patents.
US3491694A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic liners for controlled fragmentation
Assignee: United States Department of the Navy
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Filing: 1954-06-08
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Granted: 1970-01-27
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Expires: 1974-06-08
Abstract
No abstract record available.
Inventors
- 👤 Gilbert Fountain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:06
CPC Classifications
F; F42; F42B; F42B12/00; F42B12/02; F42B12/20; F42B12/22; F42B12/04; F42B12/10; F42B12/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A CONTROLLED FRAGMENTATION EXPLOSIVE DEVICE COMPRISING A CYLINDRICAL METALLIC FRAGMENTATION CASING, A CYLINDRICAL MOLD MEMBER OF RELATIVELY THIN RESILIENT MATERIAL AND OF AN UNCOMPRESSED NORMAL OUTER DIAMETER SLIGHTLY GREATER THAN THE INNER DIAMETER OF SAID CASING, SAID MOLD MEMBER BEING DISPOSED WITHIN SAID CASING WITH THE OUTER WALL OF THE MOLD MEMBER RESILIENTLY PRESSED AGAINST AND ENGAGING THE INNER WALL OF SAID CASING, SAID MOLD MEMBER HAVING A PLURALITY OF INDENTATIONS FORMED IN ITS OUTER SURFACE IN A PREDETERMINED PATTERN AND CORRESPONDING RAISED PORTIONS ON THE INNER SURFACE OFSAID MOLD MEMBER, AND A SOLIFIED EXPLOSIVE FILLING SAID MOLD MEMBER.
Claim 2
Dependent Claim
99 words
A CONTROLLED FRAGMENTATION EXPLOSIVE DEVICE COMPRISING A CYLINDRICAL METALLIC FRAGMENTATION CASING, A CYLINDRICAL MOLD MEMBER OF RELATIVELY THIN RESILIENT MATERIAL AND OF AN UNCOMPRESSED NORMAL OUTER DIAMETER SLIGHTLY GREATER THAN THE INNER DIAMETER OF SAID CASING, SAID MOLD MEMBER BEING DISPOSED WITHIN SAID CASING WITH THE OUTER WALL OF THE MOLD MEMBER RESILIENTLY PRESSED AGAINST AND ENGAGING THE INNER WALL OF SAID CASING, SAID MOLD MEMBER HAVING A PLURALITY OF INDENTATIONS FORMED IN ITS OUTER SURFACE IN A PREDETERMINED PATTERN AND CORRESPONDING RAISED PORTIONS ON THE INNER SURFACE OFSAID MOLD MEMBER, AND A SOLIFIED EXPLOSIVE FILLING SAID MOLD MEMBER.
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) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |