US5024159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plane-wave forming sheet explosive
Assignee: Individual
•
Filing: 1987-05-14
•
Granted: 1991-06-18
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Expires: 2007-05-14
Abstract
Abstract An explosive sheet which is formed by a layer of explosive material, a layer of foil, and an inert space forming material. These three layers are repeated to number, n, times to form a composite plane-wave forming explosive sheet.
Inventors
- 👤 David H. Walley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:51
CPC Classifications
F; F42; F42B; F42B1/00; C; C06; C06B; C06B45/00; C06B45/12
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
25 words
A point initiated geometric waveforming flexible explosive sheet comprising: a recurring sequence of alternating layers of explosive, foil, and a spacer forming material in order.
Claim 2
Dependent Claim
25 words
A point initiated geometric waveforming flexible explosive sheet comprising: a recurring sequence of alternating layers of explosive, foil, and a spacer forming material in order.
Claim 3
Dependent Claim
26 words
A flexible explosive sheet as set forth in claim 1 in which said sheet initiates a base charge whose detonation wave focuses about a geometric center.
Claim 4
Dependent Claim
24 words
A flexible explosive sheet as set forth in claim 1 in which said foil layer is selected from a metal, plastic, or inorganic material.
Claim 5
Dependent Claim
36 words
A flexible explosive sheet as set forth in claim 1 in which said space forming material has a thickness of from 0 to about 0.25 inches with a density of from 0 to about 2.5 9/cc.
Claim 6
Dependent Claim
30 words
A flexible explosive sheet as set forth in claim 1 in which said foil layer is replaced with an explosive whose detonation velocity is much less than the explosive layer
Claim 7
Dependent Claim
27 words
A flexible explosive sheet as set forth in claim 1 in which said space forming material is selected from a metal, a plastic, or an inorganic foam.
Claim 8
Dependent Claim
22 words
A flexible explosive sheet as set forth in claim 1, in which said explosive layer has a detonation velocity between 3-13 Km/s.
Claim 9
Dependent Claim
31 words
A flexible explosive sheet as set forth in claim 1, in which said flexible explosive sheet surrounds a base charge to drive a collapsing liner or projectile into a penetrating device.
Claim 10
Dependent Claim
29 words
A flexible explosive sheet as set forth in claim 1, in which said flexible explosive sheet initiates a base charge whose detonation wave diverges away from a geometric center.
Claim 11
Dependent Claim
43 words
A flexible explosive sheet as set forth in claim 1 in which said layer of explosive material has a thickness of from about 0 to about 0.25 inches with a shock initiation sensitivity within a range of from 0 to about 0.25 inches.
Claim 12
Dependent Claim
32 words
A flexible explosive sheet as set forth in claim 1 in which said foil layer has a thickness of from 0-0.10 inches with a density of from 0 to about 20 g/cc.
Claim 13
Dependent Claim
30 words
A flexible explosive sheet as set forth in claim 4 in which said space forming material has a shock parameter within a range of from 0 to about 5 km/s.
Claim 14
Dependent Claim
32 words
A flexible explosive sheet as set forth in claim 10 in which said foil layer has a thickness of from 0-0.10 inches with a density of from 0 to about 20 g/cc.
Claim 15
Dependent Claim
36 words
A flexible explosive sheet as set forth in claim 10 in which said space forming material has a thickness of from 0 to about 0.25 inches with a density of from 0 to about 2.5 9/cc.
Claim 16
Dependent Claim
30 words
A flexible explosive sheet as set forth in claim 11 in which said space forming material has a shock parameter within a range of from 0 to about 5 km/s.
Claim 17
Dependent Claim
30 words
A flexible explosive sheet as set forth in claim 15 in which said space forming material has a shock parameter within a range of from 0 to about 5 km/s.
References Cited (Backward Citations)
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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) | 1994-06-17 | 1994-12-17 | 1995-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-06-17 | 1998-12-17 | 1999-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-06-17 | 2002-12-17 | 2003-06-18 | $7700.00 | Window Closed / Lapsed |