US3276369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaped charge device
Assignee: Schlumberger Well Surveying Corp
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Filing: 1964-07-17
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Granted: 1966-10-04
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Expires: 1984-07-17
Abstract
No abstract record available.
Inventors
- 👤 William T Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:12
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/11; E21B43/116; E21B43/117; F; F42; F42B; F42B3/00; F42B3/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
A SHAPED CHARGE DEVICE INCLUDING: A CASE COMPRISED OF CERAMIC MATERIAL CONTAINING AT LEAST 86 PERCENT ALUMINUM OXIDE AND ADAPTED TO RECEIVE EXPLOSIVE CHARGE MEANS, SAID CASE HAVING AN END WALL WITH AN OUTER SURFACE PORTION THEREOF ADAPTED FOR SECURING DETONATING MEANS THEREON AND AN INNER SURFACE PORTION ADJACENT THERETO, WHEREIN THE THICKNESS OF SAID END WALL BETWEEN SAID SURFACE PORTIONS IS NO GREATER THAN ABOUT 0.050-INCH; SHAPED EXPLOSIVE CHARGE MEANS HAVING A FRUSTO-CONICAL METAL LINER SECURED IN ITS FORWARD END AND HAVING A BORE FORMED THEREIN AND EXTENDING TO THE REARWARD END OF SAID SHAPED EXPLOSIVE CHARGE MEANS, SAID SHAPED EXPLOSIVE CHARGE MEANS BEING SUFFICIENTLY COMPACTED TO MAINTAIN THE INTEGRITY OF SAID BORE, SAID SHAPED EXPLOSIVE CHARGE MEANS BEING DISPOSED IN SAID CASE WITH THE REARWARD END OF SAID BORE BEING COINCIDENTAL WITH SAID INNER SURFACE PORTION; BOOSTER EXPLOSIVE POWDER LOOSELY RECEIVED IN SAID BORE AND HAVING AN END THEREOF DISPOSED AGAINST SAID INNER SURFACE PORTION; AND SEALING MEANS ENCAPSULATING SAID CHARGE MEANS WITHIN SAID CASE.
Claim 2
Dependent Claim
167 words
A SHAPED CHARGE DEVICE INCLUDING: A CASE COMPRISED OF CERAMIC MATERIAL CONTAINING AT LEAST 86 PERCENT ALUMINUM OXIDE AND ADAPTED TO RECEIVE EXPLOSIVE CHARGE MEANS, SAID CASE HAVING AN END WALL WITH AN OUTER SURFACE PORTION THEREOF ADAPTED FOR SECURING DETONATING MEANS THEREON AND AN INNER SURFACE PORTION ADJACENT THERETO, WHEREIN THE THICKNESS OF SAID END WALL BETWEEN SAID SURFACE PORTIONS IS NO GREATER THAN ABOUT 0.050-INCH; SHAPED EXPLOSIVE CHARGE MEANS HAVING A FRUSTO-CONICAL METAL LINER SECURED IN ITS FORWARD END AND HAVING A BORE FORMED THEREIN AND EXTENDING TO THE REARWARD END OF SAID SHAPED EXPLOSIVE CHARGE MEANS, SAID SHAPED EXPLOSIVE CHARGE MEANS BEING SUFFICIENTLY COMPACTED TO MAINTAIN THE INTEGRITY OF SAID BORE, SAID SHAPED EXPLOSIVE CHARGE MEANS BEING DISPOSED IN SAID CASE WITH THE REARWARD END OF SAID BORE BEING COINCIDENTAL WITH SAID INNER SURFACE PORTION; BOOSTER EXPLOSIVE POWDER LOOSELY RECEIVED IN SAID BORE AND HAVING AN END THEREOF DISPOSED AGAINST SAID INNER SURFACE PORTION; AND SEALING MEANS ENCAPSULATING SAID CHARGE MEANS WITHIN SAID CASE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |