US4334423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Warhead fragmentometer
Assignee: United States Department of the Army
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Filing: 1980-11-28
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Granted: 1982-06-15
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Expires: 2000-11-28
Abstract
Abstract A method and apparatus are described for the determination of the mass andocation of fragments from a warhead. The fragments are caught in a stack of soft panels placed in the line of fire. Each panel is then fed thru a reading device including an array of magnetometers and the data fed to a reduction computer.
Inventors
- 👤 Albert E. Rainis
- 👤 J. Terrence Klopcic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:23
CPC Classifications
F; F42; F42B; F42B35/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
58 words
A method of determining the fragment mass and patterns from an exploded warhead, which comprises: (a) placing a stack of non-magnetic, penetratable panels in the path of the projecting fragments; (b) disassembling the stack of panels; and (c) feeding each panel through a reading device that determines the mass and location of each fragment in the respective panel.
Claim 2
Independent Claim
58 words
A method of determining the fragment mass and patterns from an exploded warhead, which comprises: (a) placing a stack of non-magnetic, penetratable panels in the path of the projecting fragments; (b) disassembling the stack of panels; and (c) feeding each panel through a reading device that determines the mass and location of each fragment in the respective panel.
Claim 3
Dependent Claim
29 words
A method as recited in claim 1 further comprising: locating an adhesive layer and film on the rearward face of each of the panels for entrapping very small fragments.
Claim 4
Dependent Claim
41 words
A method as recited in claim 1, further comprising: placing an array of magnetometers on the reading device whereby any size fragment can be located on the entire panel; and feeding the signals of each magnetometer to a data reduction computer.
Claim 5
Dependent Claim
25 words
A method as recited in claim 1, further comprising: operating each magnetometer at a selected frequency so as to minimize mutual interference between adjacent magnetometers.
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) | 1985-06-14 | 1985-12-14 | 1986-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-14 | 1989-12-14 | 1990-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-14 | 1993-12-14 | 1994-06-15 | $7700.00 | Window Closed / Lapsed |