US3340807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exploding wire techniques
Assignee: TDK Micronas GmbH
•
Filing: 1965-10-04
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Granted: 1967-09-12
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Expires: 1985-10-04
Abstract
No abstract record available.
Inventors
- 👤 Burr Gerald
- 👤 Mark B Leeds
- 👤 Stanford B Silverschotz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:28
CPC Classifications
F; F42; F42D; F42D3/00; B; B64; B64D; B64D1/00; B64D1/02; F16; F16B; F16B31/00; F16B31/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A METHOD OF FRACTURING A SOLID OF MATERIAL COMPRISING THE STEPS OF: FORMING A PLURALITY OF HOLES IN THE MATERIAL; THREADING A WIRE THROUGH SAID HOLES; APPLYING A SMALL ELECTRICAL CURRENT TO SAID WIRE TO CAUSE THE WALLS DEFINING SAID HOLES TO SOFTEN AND FUSE TO SAID WIRE TO FORM AN INTIMATE CONTACT THEREWITH; AND PULSING SAID WIRE WITH A HIGH ENERGY ELECTRICAL CURRENT PULSE SO THAT SAID WIRE VAPORIZES, GENERATING A SHOCK WAVE WHICH FRACTURES THE MATERIAL.
Claim 2
Independent Claim
78 words
A METHOD OF FRACTURING A SOLID OF MATERIAL COMPRISING THE STEPS OF: FORMING A PLURALITY OF HOLES IN THE MATERIAL; THREADING A WIRE THROUGH SAID HOLES; APPLYING A SMALL ELECTRICAL CURRENT TO SAID WIRE TO CAUSE THE WALLS DEFINING SAID HOLES TO SOFTEN AND FUSE TO SAID WIRE TO FORM AN INTIMATE CONTACT THEREWITH; AND PULSING SAID WIRE WITH A HIGH ENERGY ELECTRICAL CURRENT PULSE SO THAT SAID WIRE VAPORIZES, GENERATING A SHOCK WAVE WHICH FRACTURES THE MATERIAL.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |