Patent US2851918A successfully refreshed from Google Patents.
US2851918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming shaped explosive charge
Assignee: Individual
•
Filing: 1954-01-18
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Granted: 1958-09-16
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Expires: 1974-01-18
Abstract
No abstract record available.
Inventors
- 👤 Norman A Macleod
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:18
CPC Classifications
F; F42; F42B; F42B1/00; F42B1/02; F42B1/036
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
THE METHOD OF FORMING A SHAPED CHARGE, COMPRISING DELIVERING A MASS OF CRYSTALLIZABLE MOLTEN EXPLOSIVE MATERIAL TO A CLOSED CYLINDRICAL ZONE HAVING A RENTRANT SURFACE AT ONE END THEREOF DISPOSED SYMMETRICALLY ABOUT THE LONGITUDINAL AXIS OF THE CHARGE, SUCH AS A CONICAL SURFACE HAVING ITS APEX ON SAID AXIS, EXTRACTING HEAT FROM AND SURFACE WHILE INHIBITING EXTRACTION OF HEAT ACROSS THE REMAINING SURFACES THEREBY EFFECTING INITIAL SOLIDIFICATION AND CRYSTALLIZATION OF THE EXPLOSIVE IN A ZONE SUBSTANTIALLY CONCENTRATE WITH SAID SURFACE, AND CONTINUING EXTRACTING HEAT FROM SAID SURFACE WHILE INHIBITING EXTRACTION OF HEAT ACROSS THE REMAINING SURFACES THEREBY EFFECTING CONTINUING SOLIDIFICATION AND CRYSTALLIZATION UNIFORMLY IN DIRECTIONS OUTWARDLY AND AWAY FROM SAID SURFACE AND UNTIL ALL OF THE EXPLOSIVE MATERIAL HAS SOLDIFIED AND CRYSTALLIZED.
Claim 2
Independent Claim
122 words
THE METHOD OF FORMING A SHAPED CHARGE, COMPRISING DELIVERING A MASS OF CRYSTALLIZABLE MOLTEN EXPLOSIVE MATERIAL TO A CLOSED CYLINDRICAL ZONE HAVING A RENTRANT SURFACE AT ONE END THEREOF DISPOSED SYMMETRICALLY ABOUT THE LONGITUDINAL AXIS OF THE CHARGE, SUCH AS A CONICAL SURFACE HAVING ITS APEX ON SAID AXIS, EXTRACTING HEAT FROM AND SURFACE WHILE INHIBITING EXTRACTION OF HEAT ACROSS THE REMAINING SURFACES THEREBY EFFECTING INITIAL SOLIDIFICATION AND CRYSTALLIZATION OF THE EXPLOSIVE IN A ZONE SUBSTANTIALLY CONCENTRATE WITH SAID SURFACE, AND CONTINUING EXTRACTING HEAT FROM SAID SURFACE WHILE INHIBITING EXTRACTION OF HEAT ACROSS THE REMAINING SURFACES THEREBY EFFECTING CONTINUING SOLIDIFICATION AND CRYSTALLIZATION UNIFORMLY IN DIRECTIONS OUTWARDLY AND AWAY FROM SAID SURFACE AND UNTIL ALL OF THE EXPLOSIVE MATERIAL HAS SOLDIFIED AND CRYSTALLIZED.
References Cited (Backward Citations)
US1054049A
Cited
US1231388A
Cited
GB115359A
Cited
US2195429A
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US2314378A
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US2494256A
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US2784638A
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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) | 1961-09-15 | 1962-03-17 | 1962-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-15 | 1966-03-17 | 1966-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-15 | 1970-03-17 | 1970-09-16 | $7700.00 | Window Closed / Lapsed |