US3280923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nuclear powered drilling method and system
Assignee: ExxonMobil Upstream Research Co
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Filing: 1962-09-21
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Granted: 1966-10-25
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Expires: 1982-09-21
Abstract
No abstract record available.
Inventors
- 👤 Nils L Muench
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:01
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/04; E21B4/00; E21B4/04; E21B44/00; E21B44/005; Y; Y10; Y10S; Y10S376/00; Y10S376/909
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
129 words
A DRILLING APPARATUS CAPABLE OF DRILLING A BOREHOLE AND OF BEING SUSPENDED ON A NONCONDUCTOR CABLE IN SAID BOREHOLE COMPRISING: A DRILL MEMBER ADAPTED TO DRILL SAID BOREHOLE WHEN ACTUATED; AN ELECTRIC MOTOR CONNECTED TO SAID DRILL MEMBER ADAPTED TO ACTUATE SAID DRILL MEMBER; MEANS COUPLED TO SAID ELECTRIC MOTOR ADAPTED TO GENERATE ELECTRICAL ENERGY TO OPERATE SAID ELECTRIC MOTOR COMPRISING A NUCLEAR REACTOR FOR GENERATING HEAT, A HOT JUNCTION COMPRISING DISSIMILAR METALS LOCATED IN SAID REACTOR, A COLD JUNCTION COMPRISING DISSIMILAR METAL SEPARATED FROM SAID HOT JUNCTION, ELECTRICCL CONDUCTORS CONNECTING SAID HOT AND COLD JUNCTIONS; AND COOLING MEANS PROVIDED ADJACENT SAID COLD JUNCTION TO FACILITATE HEAT TRANSFER FROM SAID COLD JUNCTION THROUGH THE DRILLING FLUID SURROUNDING SAID APPARATUS INTO THE EARTH FORMATION WHICH SERVES AS A HEAT SINK.
References Cited (Backward Citations)
US694534A
Cited
US1283542A
Cited
US1430473A
Cited
US2531120A
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US2637527A
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US2643087A
Cited
US3028921A
Cited
US2984310A
Cited
US3008890A
Cited
US3049709A
Cited
GB867025A
Cited
US3057340A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |