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US4730558A
Expired / Lapsed
US
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Electronic delayed-action explosive detonator
Assignee: Dynamit Nobel AG
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Filing: 1985-11-01
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Granted: 1988-03-15
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Expires: 2005-11-01
Abstract
Abstract An electronic delayed-action explosive detonator comprising a tubular case, a capacitor chargeable by pulses from a blasting machine, an integrated circuit for processing pulses from the blasting machine to set a delay time, the integrated circuit controlling the elapse of the delay time after the delay time has been set, a primer to which current is supplied upon elapse of the delay time for enabling detonation, and detonator wires extending from the tubular case for enabling connection of the blasting machine to at least one of the capacitor and integrated circuit. A supporting plate arrangement for carrying the integrated circuit is disposed in series with the capacitor within the tubular case. The supporting plate has a first contact area with connecting pads for enabling attachment of leads of the capacitor, and a second contact area with connecting pads for enabling attachment of the detonator wires which are within the tubular case and extend outwardly therefrom.
Inventors
- 👤 Johann Florin
- 👤 Friedrich Heinemeyer
- 👤 Peter Roh
- 👤 Ulrich Steiner
- 👤 Edward Uden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:26
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/10; F42B3/12; F42B3/121; F42B3/122; H; H05; H05K; H05K1/00; H05K1/18; H05K1/182
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
176 words
An electronic delayed-action explosive detonator comprising a tubular case, a capacitor chargeable by pulses from a blasting machine to store a charge sufficient to enable detonation, integrated circuit means separate from the capacitor for processing pulses from the blasting machine to control elapse of a delay time after the delay time has been set so as to enable detonation, primer means to which current is supplied upon elapse of the delay time for enabling detonation, detonator wires extending from the tubular case for enabling connection of the blasting machine to at least one of the capacitor and integrated circuit means, and supporting plate means separate from the capacitor for carrying the integrated circuit means, the supporting plate means being disposed in a series arrangement with the capacitor within the tubular case, the supporting plate means having a first contact area with connecting pad means for enabling attachment of leads of the capacitor, and a second contact area with connecting pad means for enabling attachment of the detonator wires within the tubular case and extending outwardly therefrom.
Claim 2
Dependent Claim
176 words
An electronic delayed-action explosive detonator comprising a tubular case, a capacitor chargeable by pulses from a blasting machine to store a charge sufficient to enable detonation, integrated circuit means separate from the capacitor for processing pulses from the blasting machine to control elapse of a delay time after the delay time has been set so as to enable detonation, primer means to which current is supplied upon elapse of the delay time for enabling detonation, detonator wires extending from the tubular case for enabling connection of the blasting machine to at least one of the capacitor and integrated circuit means, and supporting plate means separate from the capacitor for carrying the integrated circuit means, the supporting plate means being disposed in a series arrangement with the capacitor within the tubular case, the supporting plate means having a first contact area with connecting pad means for enabling attachment of leads of the capacitor, and a second contact area with connecting pad means for enabling attachment of the detonator wires within the tubular case and extending outwardly therefrom.
Claim 3
Dependent Claim
19 words
An electronic delayed-action explosive detonator according to claim 1, wherein the supporting plate means is a single plate member.
Claim 4
Dependent Claim
46 words
An electronic delayed-action explosive detonator according to claim 1, wherein the supporting plate means comprises at least two plate sections, one plate section carrying the integrated circuit means and having the first contact area thereon and the second plate section having the second contact area thereon.
Claim 5
Dependent Claim
64 words
An electronic delayed-action explosive detonator according to claim 1, wherein the capacitor is disposed substantially coaxially with the tubular case and occupies a large portion of the cross-section of the tubular case, and the supporting plate means disposed in the series arrangement behind the capacitor extends, when viewed in cross-section of the tubular case, substantially over the entire internal width of the tubular case.
Claim 6
Dependent Claim
62 words
An electronic delayed-action explosive detonator according to claim 1, wherein the supporting plate means includes first and second plate sections, the first plate section carrying the integrated circuit mean and the second plate section having the second contact area thereon, the second plate section being connected to the first plate section by at least one path member extending laterally along the capacitor.
Claim 7
Dependent Claim
60 words
An electronic delayed-action explosive detonator according to claim 5 wherein the at least one path portion is provided with at least one conductor, one end of the at least one conductor being contacted to a connecting pad means of the second contact area, and the other end of the at least one conductor being connected to the integrated circuit means.
Claim 8
Dependent Claim
65 words
An electronic delayed-action explosive detonator according to claim 1, wherein the supporting plate means includes a first plate section carrying the integrated circuit means, and a second plate section separated from the first plate section and having the second contact area thereon, the connecting pad means of the second contact area being contacted to the integrated circuit means by wires extending laterally along the capacitor.
Claim 9
Dependent Claim
42 words
An electronic delayed-action explosive detonator according to claim 1, wherein the supporting plate means carries a programming area formed of a plurality of conductive strips, the programming area being alterable by external means for setting different selectable delay times for the detonator.
Claim 10
Dependent Claim
45 words
An electronic delayed-action explosive detonator according to claim 8, wherein the plurality of conductive strips of the programming area are connected to the integrated circuit means so that the delay time is alterable by interruption of at least one of the plurality of conductive strips.
Claim 11
Dependent Claim
64 words
An electronic delayed-action explosive detonator according to claim 1, wherein the supporting plate means is provided with conductors on opposite sides of the supporting plate means, the supporting plate means being provided with an opening therethrough in at least one location so as to enable contact from a conductor at one side to a conductor at the opposite side of the supporting plate means.
Claim 12
Dependent Claim
41 words
An electronic delayed-action explosive detonator according to claim 1, wherein the primer means includes one of a bridgewire, metallic film bridge and carbon bridge, the ends of the primer mean being directly connected to connecting points of the first plate section.
Claim 13
Dependent Claim
62 words
An electronic delayed-action explosive detonator according to claim 4, wherein the supporting plate means includes first and second plate sections, the first plate section carrying the integrated circuit mean and the second plate section having the second contact area thereon, the second plate section being connected to the first plate section by at least one path member extending laterally along the capacitor.
Claim 14
Dependent Claim
60 words
An electronic delayed-action explosive detonator according to claim 12, wherein the at least one path portion is provided with at least one conductor, one end of the at least one conductor being contacted to a connecting pad means of the second contact area, and the other end of the at least one conductor being connected to the integrated circuit means.
Claim 15
Dependent Claim
65 words
An electronic delayed-action explosive detonator according to claim 4, wherein the supporting plate means includes a first plate section carrying the integrated circuit means, and a second plate section separate from the first plate section and having the second contact area thereon, the connecting pad means of the second contact area being connected to the integrated circuit means by wires extending laterally along the capacitor.
Claim 16
Dependent Claim
42 words
An electronic delayed-action explosive detonator according to claim 4, wherein the supporting plate means carries a programming area formed of a plurality of conductive strips, the programming area being alterable by external means for setting different selectable delay times for the detonator.
Claim 17
Dependent Claim
45 words
An electronic delayed-action explosive detonator according to claim 15, wherein the plurality of conductive strips of the programming area are connected to the integrated circuit means so that the delay time is alterable by interruption of at least one of the plurality of conductive strips.
Claim 18
Dependent Claim
42 words
An electronic delayed-action explosive detonator according to claim 5 wherein the supporting plate means carries a programming area formed of a plurality of conductive strips, the programming area being alterable by external means for setting different selectable delay times for the detonator.
Claim 19
Dependent Claim
42 words
An electronic delayed-action explosive detonator according to claim 7, wherein the supporting plate means carries a programming area formed of a plurality of conductive strips, the programming area being alterable by external means for setting different selectable delay times for the detonator.
Claim 20
Dependent Claim
45 words
An electronic delayed-action explosive detonator according to claim 18, wherein the plurality of conductive strips of the programming area are connected to the integrated circuit means so that the delay time is alterable by interruption of at least one of the plurality of conductive strips.
Claim 21
Dependent Claim
64 words
An electronic delayed-action explosive detonator according to claim 4, wherein the supporting plate means is provided with conductors on opposite sides of the supporting plate means, the supporting plate means being provided with an opening therethrough in at least one location so as to enable contact from a conductor at one side to a conductor at the opposite side of the supporting plate means.
Claim 22
Dependent Claim
64 words
An electronic delayed-action explosive detonator according to claim 5, wherein the supporting plate means is provided with conductors on opposite sides of the supporting plate means, the supporting plate means being provided with an opening therethrough in at least one location so as to enable contact from a conductor at one side to a conductor at the opposite side of the supporting plate means.
Claim 23
Dependent Claim
64 words
An electronic delayed-action explosive detonator according to claim 7, wherein the supporting plate means is provided with conductors on opposite sides of the supporting plate means, the supporting plate means being provided with an opening therethrough in at least one location so as to enable contact from a conductor at one side to a conductor at the opposite side of the supporting plate means.
Claim 24
Dependent Claim
64 words
An electronic delayed-action explosive detonator according to claim 19, wherein the supporting plate means is provided with conductors on opposite sides of the supporting plate means, the supporting plate means being provided with an opening therethrough in at least one location so as to enable contact from a conductor at one side to a conductor at the opposite side of the supporting plate means.
Claim 25
Dependent Claim
43 words
An electronic delayed-action explosive detonator according to claim 4, wherein the primer means includes one of a bridgewire, a metallic film bridge and a carbon bridge, the ends of the primer means being directly connected to connecting points of the first plate section.
Claim 26
Dependent Claim
43 words
An electronic delayed-action explosive detonator according to claim 5, wherein the primer means includes one of a bridgewire, a metallic film bridge, and a carbon bridge, the ends of the primer means being directly connected to connecting points of the first plate section.
Claim 27
Dependent Claim
42 words
An electronic delayed-action explosive detonator according to claim 7, wherein the primer means includes one of a bridgewire, a metallic film bridge, and a carbon bridge, the ends of the primer means being directly connected to connecting points of the plate section.
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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) | 1991-03-15 | 1991-09-14 | 1992-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-15 | 1995-09-14 | 1996-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-15 | 1999-09-14 | 2000-03-15 | $7700.00 | Window Closed / Lapsed |