US3149490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well logging apparatus
Assignee: Texaco Inc
•
Filing: 1958-10-09
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Granted: 1964-09-22
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Expires: 1978-10-09
Abstract
No abstract record available.
Inventors
- 👤 Roy J Clements
- 👤 Leon M Evans
- 👤 John J Havlik
- 👤 Billy H Towell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:01
CPC Classifications
G; G01; G01V; G01V11/00; G01V11/002; E; E21; E21B; E21B47/00; E21B47/26; E21B47/01; E21B47/017
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
APPARATUS COMPRISING A TUBULAR MEMBER ADAPTED TO BE COUPLED IN A DRILL STRING IN THE VICINITY OF THE ROTATABLE DRILL BIT, A PRESSURE-TIGHT CAPSULE DISPOSED WITHIN AND RIGIDITY SECURED TO SAID TUBULAR MEMBER, AN INNER CASE INCLUDING APPARATUS FOR CONDUCTING A LOG IN THE BOREHOLE DISPOSED WITHIN SAID CAPSULE AND MEANS FOR MOUNTING SAID INNER CASE WITHIN SAID CAPSULE FOR SUBSTANTIALLY FREE ROTATION THEREIN ABOUT THE LONGITUDINAL AXIS THEREOF, SAID LONGITUDINAL AXIS OF SAID INNER CASE BEING DISPOSED SUBSTANTIALLY ALONG THE LONGITUDINAL AXIS OF SAID DRILL STRING, SAID MOUNTING MEANS INCLUDING RESILIENT MEANS COMPRISING A SPRING MOUNTED IN COMPRESSIONAL RELATIONSHIP BETWEEN SAID CAPSULE AND SAID INNER CASE AND BEING ORIENTED TO APPLY PRESSURE BETWEEN SAID CAPSULE AND SAID INNER CASE ALONG SAID LONGITUDINAL AXIS, THEREBY COMPRISING MEANS FOR OPPOSING UPWARD MOVEMENT OF SAID INNER CASE ALONG THE LONGITUDINAL AXIS THEREOF WITH RESPECT TO SAID PRESSURETIGHT CAPSULE, THEREBY SUBSTANTIUALLY TO ELIMINATE LONGITUDINAL CHATTER WHILE MAINTAINING SAID HOUSING FREELY ROTATABLE.
Claim 2
Dependent Claim
158 words
APPARATUS COMPRISING A TUBULAR MEMBER ADAPTED TO BE COUPLED IN A DRILL STRING IN THE VICINITY OF THE ROTATABLE DRILL BIT, A PRESSURE-TIGHT CAPSULE DISPOSED WITHIN AND RIGIDITY SECURED TO SAID TUBULAR MEMBER, AN INNER CASE INCLUDING APPARATUS FOR CONDUCTING A LOG IN THE BOREHOLE DISPOSED WITHIN SAID CAPSULE AND MEANS FOR MOUNTING SAID INNER CASE WITHIN SAID CAPSULE FOR SUBSTANTIALLY FREE ROTATION THEREIN ABOUT THE LONGITUDINAL AXIS THEREOF, SAID LONGITUDINAL AXIS OF SAID INNER CASE BEING DISPOSED SUBSTANTIALLY ALONG THE LONGITUDINAL AXIS OF SAID DRILL STRING, SAID MOUNTING MEANS INCLUDING RESILIENT MEANS COMPRISING A SPRING MOUNTED IN COMPRESSIONAL RELATIONSHIP BETWEEN SAID CAPSULE AND SAID INNER CASE AND BEING ORIENTED TO APPLY PRESSURE BETWEEN SAID CAPSULE AND SAID INNER CASE ALONG SAID LONGITUDINAL AXIS, THEREBY COMPRISING MEANS FOR OPPOSING UPWARD MOVEMENT OF SAID INNER CASE ALONG THE LONGITUDINAL AXIS THEREOF WITH RESPECT TO SAID PRESSURETIGHT CAPSULE, THEREBY SUBSTANTIUALLY TO ELIMINATE LONGITUDINAL CHATTER WHILE MAINTAINING SAID HOUSING FREELY ROTATABLE.
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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) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |