Patent US3907947A successfully refreshed from Google Patents.
US3907947A
Expired / Lapsed
US
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Method for shaped charge bomblet production
Assignee: United States Department of the Navy
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Filing: 1973-11-12
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Granted: 1975-09-23
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Expires: 1993-11-12
Abstract
Abstract A process for producing shaped charge bomblets, apparatus for carrying out the process and the product made thereby. The process includes the steps of preheating an explosive molding powder, inserting the powder into a die, and applying high pressure (40,000 psi) for a timed period (e.g., 3 minutes). The disclosed die is a double action type exerting pressure from both ends of the material.
Inventors
- 👤 Herbert M Neuhaus
- 👤 Jack Sherman
- 👤 Wallace E Silver
- 👤 Lloyd A Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:34
CPC Classifications
F; F42; F42B; F42B1/00; F42B1/02; F42B1/036; C; C06; C06B; C06B21/00; C06B21/0033; C06B21/0041
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
142 words
THE METHOD OF MANUFACTURING MOLDED PERFORMED EXPLOSIVE CHARGES FOR PLACEMENT WITHIN A SPACED CHAMBER IN AN EXPLOSIVE DEVICE COMPRISING THE STEPS THEREOF FORMING AN EXPLOSIVE POWDER MIXTURE, POURING A MEASURED QUANTITY OF SAID EXPLOSIVE POWDER INTO A MOLD THAT HAS A CENTRAL CONTOURED CAVITY WHOSE INTERNAL SURFACE AREA DEFINES THE EXTERNAL SHAPE OF SAID CHARGE, APPLYING PRESSURE AGAINST SAID POWDER BY MEANS OF A FIRST PUNCH HAVING AN EXTERNAL SURFACE SHAPE THAT DEFINES THE SHAPE OF THE INTERNAL CHAMBER OF SAID CHARGE, SUPPLYING AN OPPOSING FORCE AGAINST SAID POWDER BY MEANS OF A SECOND PUNCH MOVABLE WITHIN SAID MOLD THAT HAS AN EXTERNAL END SURFACE THAT DEFINES THE EXTERNAL SURFACE AREA OF THE CLOSED END OF SAID CHARGE, RELEASING THE PRESSURE AGAINST SAID CHARGE, AND DISASSEMBLYING SAID FIRST AND SECOND PUNCHES FROM SAID MOLD TO REMOVE SAID CHARGE FROM SAID MOLD CAVITY.
Claim 2
Independent Claim
142 words
THE METHOD OF MANUFACTURING MOLDED PERFORMED EXPLOSIVE CHARGES FOR PLACEMENT WITHIN A SPACED CHAMBER IN AN EXPLOSIVE DEVICE COMPRISING THE STEPS THEREOF FORMING AN EXPLOSIVE POWDER MIXTURE, POURING A MEASURED QUANTITY OF SAID EXPLOSIVE POWDER INTO A MOLD THAT HAS A CENTRAL CONTOURED CAVITY WHOSE INTERNAL SURFACE AREA DEFINES THE EXTERNAL SHAPE OF SAID CHARGE, APPLYING PRESSURE AGAINST SAID POWDER BY MEANS OF A FIRST PUNCH HAVING AN EXTERNAL SURFACE SHAPE THAT DEFINES THE SHAPE OF THE INTERNAL CHAMBER OF SAID CHARGE, SUPPLYING AN OPPOSING FORCE AGAINST SAID POWDER BY MEANS OF A SECOND PUNCH MOVABLE WITHIN SAID MOLD THAT HAS AN EXTERNAL END SURFACE THAT DEFINES THE EXTERNAL SURFACE AREA OF THE CLOSED END OF SAID CHARGE, RELEASING THE PRESSURE AGAINST SAID CHARGE, AND DISASSEMBLYING SAID FIRST AND SECOND PUNCHES FROM SAID MOLD TO REMOVE SAID CHARGE FROM SAID MOLD CAVITY.
Claim 3
Dependent Claim
26 words
The method according to claim 1 wherein said mold, said first punch and said second punch are heated before said powder is poured into the mold.
Claim 4
Dependent Claim
18 words
The method according to claim 1 wherein the powder is heated before it is poured into the mold.
Claim 5
Dependent Claim
23 words
The method according to claim 3 wherein said powder is heated to and is pressed at 40,000 psi with a 3 minute dwell.
References Cited (Backward Citations)
US3745077A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |