Patent US5422913A successfully refreshed from Google Patents.
Patent US3983624A successfully refreshed from Google Patents.
US3983624A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical igniter and method of manufacture
Assignee: United States Department of the Army
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Filing: 1952-01-10
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Granted: 1976-10-05
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Expires: 1972-01-10
Abstract
Abstract 1. The method of joining a bridge wire to a pair of electrodes in a detonator in which the electrodes are separated by a dielectric, comprising the steps of aligning a plurality of detonators in a mounting jig, stringing bridge wire across the electrodes of said plurality of detonator assemblies, tensioning said wire until said wire and electrodes are in intimate contact, placing a droplet of conductive silver paint to the point of contact of said wire and said electrode, allowing said paint to harden at ambient temperature, and cutting said wire adjacent the outer periphery of said assembly to separate said detonators.
Inventors
- 👤 Fred E. Gross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:57
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/10; F42B3/195; F42B3/198; H; H05; H05K; H05K13/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49169
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
The method of joining a bridge wire to a pair of electrodes in a detonator in which the electrodes are separated by a dielectric, comprising the steps of aligning a plurality of detonators in a mounting jig, stringing bridge wire across the electrodes of said plurality of detonator assemblies tensioning said wire until said wire and electrodes are in intimate contact, placing a droplet of conductive silver paint to the point of contact of said wire and said electrode, allowing said paint to harden to ambient temperature, and cutting said wire adjacent the outer periphery of said assembly to separate said detonators.
Claim 2
Independent Claim
102 words
The method of joining a bridge wire to a pair of electrodes in a detonator in which the electrodes are separated by a dielectric, comprising the steps of aligning a plurality of detonators in a mounting jig, stringing bridge wire across the electrodes of said plurality of detonator assemblies tensioning said wire until said wire and electrodes are in intimate contact, placing a droplet of conductive silver paint to the point of contact of said wire and said electrode, allowing said paint to harden to ambient temperature, and cutting said wire adjacent the outer periphery of said assembly to separate said detonators.
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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) | 1979-10-05 | 1980-04-05 | 1980-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-05 | 1984-04-05 | 1984-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-05 | 1988-04-05 | 1988-10-05 | $7700.00 | Window Closed / Lapsed |