US3583062A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Explosion bonding of aluminum to steel
Assignee: ETI EXPLOSIVES TECHNOLOGIES INTE
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Filing: 1968-07-30
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Granted: 1971-06-08
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Expires: 1988-07-30
Abstract
Abstract COMPOSITE PRODUCTS OF CERTAIN ALUMINUM AND STEEL LAYERS METALLURGICALLY BONDED TOGETHER OVER AT LEAST 90% OF THEIR INTERFACE BY A SUBSTANTIALLY DIFFUSIONLESS WAVY BOND CONTAINING, BY AREA, AT LEAST ABOUT 70% DIRECT ALUMINUMTO-STEEL BONDING ARE PREPARED BY AN IMPROVED EXPLOSIONBONDING PROCESS WHEREIN AT LEAST ONE LAYER OF ALUMINUM IS CAUSED TO COLLIDE PROGRESSIVELY WITH A LAYER OF STEEL AT A VELOCITY OF ABOUT FROM 2500 TO 3400 METERS/SEC. AND AT AN IMPACT ANGLE OF ABOUT FROM 14 TO 25*, THE OPPOSED SURFACES OF SAID LAYERS BEING DISPOSED AT AN ANGLE OF LESS THAN 5* PRIOR TO DETONATION OF SAID EXPLOSIVE.
Inventors
- 👤 William F Sharp Jr
- 👤 Thomas J Enright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:55
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/06; B23K20/08; H; H01; H01R; H01R4/00; H01R4/58; H01R4/62; H01R4/625
Claims Analysis
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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) | 1974-06-07 | 1974-12-07 | 1975-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-07 | 1978-12-07 | 1979-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-07 | 1982-12-07 | 1983-06-08 | $7700.00 | Window Closed / Lapsed |