Patent US3346056A successfully refreshed from Google Patents.
US3346056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hollow carrier gun
Assignee: Dresser Industries Inc
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Filing: 1965-05-24
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Granted: 1967-10-10
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Expires: 1985-05-24
Abstract
No abstract record available.
Inventors
- 👤 F O Bohn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:17
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/11; E21B43/116; E21B43/117
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
188 words
A HOLLOW CARRIER GUN FOR LINED SHAPED CHARGES FOR USE IN PERFORATING SMALL DIAMETER TUBING, SAID GUN COMPRISING: A GUN BODY FORMED OF A LENGTH OF HOLLOW, OPEN-ENDED TUBING HAVING COUNTERBORE APERTURES SPACED APART ALONG ITS LENGTH, A CLOSURE SEALINGLY ENGAGED WITH EACH END OF THE TUBING; A SHAPED CHARGE CARRIER STRIP INSIDE SAID BODY, SAID CARRIER STRIP HAVING APERTURES ALIGNED WITH SAID APERTURES IN SAID BODY, A PLURALITY OF SHAPED CHARGES IN SAID APERTURES OF SAID CARRIER STRIP, EACH SHAPED CHARGE FORMED OF A GENERALLY CUPSHAPED CASE DESIGNED TO FIT INSIDE OF THE GUN BODY AND HAVING AN AXIAL APERTURE ALIGNED WITH THE OPPOSING APERTURE IN SAID GUN BODY; A BLOCK OF HIGH EXPLOSIVE IN SAID CASE HAVING A LINED CAVITY IN ITS FRONT FACE; A PLURALITY OF BOOSTER CAPS, ONE FOR EACH SHAPED CHARGE, EACH BOOSTER CAP FORMED OF A ROUND, STEPPED END SEALINGLY ENGAGED WITH THE COUNTERBORE APERTURE IN THE BODY AND ENGAGING THE AXIAL APERTURE IN THE CASE OF THE SHAPED CHARGE; A BOOSTER IN THE END OF SAID BOOSTER CAP CONTACTING THE BLOCK OF EXPLOSIVE OF THE SHAPED CHARGE, AN ANNULAR EXTENSION EXTENDING
Claim 2
Dependent Claim
188 words
A HOLLOW CARRIER GUN FOR LINED SHAPED CHARGES FOR USE IN PERFORATING SMALL DIAMETER TUBING, SAID GUN COMPRISING: A GUN BODY FORMED OF A LENGTH OF HOLLOW, OPEN-ENDED TUBING HAVING COUNTERBORE APERTURES SPACED APART ALONG ITS LENGTH, A CLOSURE SEALINGLY ENGAGED WITH EACH END OF THE TUBING; A SHAPED CHARGE CARRIER STRIP INSIDE SAID BODY, SAID CARRIER STRIP HAVING APERTURES ALIGNED WITH SAID APERTURES IN SAID BODY, A PLURALITY OF SHAPED CHARGES IN SAID APERTURES OF SAID CARRIER STRIP, EACH SHAPED CHARGE FORMED OF A GENERALLY CUPSHAPED CASE DESIGNED TO FIT INSIDE OF THE GUN BODY AND HAVING AN AXIAL APERTURE ALIGNED WITH THE OPPOSING APERTURE IN SAID GUN BODY; A BLOCK OF HIGH EXPLOSIVE IN SAID CASE HAVING A LINED CAVITY IN ITS FRONT FACE; A PLURALITY OF BOOSTER CAPS, ONE FOR EACH SHAPED CHARGE, EACH BOOSTER CAP FORMED OF A ROUND, STEPPED END SEALINGLY ENGAGED WITH THE COUNTERBORE APERTURE IN THE BODY AND ENGAGING THE AXIAL APERTURE IN THE CASE OF THE SHAPED CHARGE; A BOOSTER IN THE END OF SAID BOOSTER CAP CONTACTING THE BLOCK OF EXPLOSIVE OF THE SHAPED CHARGE, AN ANNULAR EXTENSION EXTENDING
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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) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |