US3688702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detonator device for explosive charge exhibiting detonating effect capable of bridging gap between spaced charges
Assignee: Dynamit Nobel AG
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Filing: 1969-08-12
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Granted: 1972-09-05
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Expires: 1989-08-12
Abstract
Abstract A detonator for explosive charges, exhibiting a detonating effect which bridges a spacing between a primer charge and a relay or propagation charge, for example, for hollow charge primer chains, including a primer charge disposed within a case closed off at one end by a bottom member and a metallic insert disposed within the case, which insert has a configuration of a hollow cylinder with a bottom recessed in a conical manner, the base of the cone thus formed facing the bottom member of the case.
Inventors
- 👤 Josef Prior
- 👤 Aloys Florin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:06
CPC Classifications
F; F42; F42C; F42C19/00; F42C19/08; F42C19/0815; F42C19/09
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
133 words
A detonator device exhibiting a detonating effect bridging a gap between a primer charge and a subsequent charge, comprising: primer charge means, secondary charge means, substantially cylindrical case means sealed off at one end with a bottom member aNd accommodating said primer charge means and said secondary charge means therein, and metallic insert means constructed to produce a shaped-charge effect and having a substantially hollow, cylindrical configuration with a lower end closed by a bottom portion having a funnel-shaped recess formed therein, said metallic insert means being disposed with said case means in the region of said secondary charge means with the relatively wider end of said funnel-shaped recess disposed in the direction of said bottom member of said case means and constructed to be destroyed upon detonation of said secondary charge means.
Claim 2
Dependent Claim
133 words
A detonator device exhibiting a detonating effect bridging a gap between a primer charge and a subsequent charge, comprising: primer charge means, secondary charge means, substantially cylindrical case means sealed off at one end with a bottom member aNd accommodating said primer charge means and said secondary charge means therein, and metallic insert means constructed to produce a shaped-charge effect and having a substantially hollow, cylindrical configuration with a lower end closed by a bottom portion having a funnel-shaped recess formed therein, said metallic insert means being disposed with said case means in the region of said secondary charge means with the relatively wider end of said funnel-shaped recess disposed in the direction of said bottom member of said case means and constructed to be destroyed upon detonation of said secondary charge means.
Claim 3
Dependent Claim
50 words
A detonator device according to claim 1, wherein a portion of said secondary charge means is disposed below said bottom portion of said metallic insert means within said recess formed therein and the remainder of said secondary charge means is disposed above said bottom portion of said metallic insert means.
Claim 4
Dependent Claim
18 words
A detonator device according to claim 2, wherein said bottom member of said case means is curved inwardly.
Claim 5
Dependent Claim
21 words
A detonator device according to claim 2, wherein the cylindrical surface of said case means is provided with an externally-threaded portion.
Claim 6
Dependent Claim
46 words
A detonator device according to claim 2, wherein said metallic insert means is provided in the form of a cup open at one end and has a length sufficient to accommodate therein at least said primer charge means and said remainder of said secondary charge means.
Claim 7
Dependent Claim
28 words
A detonator device according to claim 5, further including additional charge means disposed within said metallic insert means, between said primer charge means and said secondary charge means.
Claim 8
Dependent Claim
22 words
A detonator device according to claim 5, wherein said metallic insert means further includes outwardly-turned flange means at said open end thereof.
Claim 9
Dependent Claim
18 words
A detonator device according to claim 5, wherein said bottom member of said case means is curved inwardly.
Claim 10
Dependent Claim
21 words
A detonator device according to claim 5, wherein the cylindrical surface of said case means is provided with an externally-threaded portion.
Claim 11
Dependent Claim
18 words
A detonator device according to claim 7, wherein said bottom member of said case means is curved inwardly.
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) | 1975-09-05 | 1976-03-06 | 1976-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-05 | 1980-03-06 | 1980-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-05 | 1984-03-06 | 1984-09-05 | $7700.00 | Window Closed / Lapsed |