US3375490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible cablelike transducer
Assignee: Texaco Inc
•
Filing: 1965-11-17
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Granted: 1968-03-26
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Expires: 1985-11-17
Abstract
No abstract record available.
Inventors
- 👤 Steven A Stubblefield
- 👤 Robert L Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:01
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/16; G01V1/20; G01V1/201
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A FLEXIBLE ELONGATED CABLELIKE TRANSDUCER OF SUBSTANTIALLY UNIFORM OUTER CIRCUMFERENCE ALONG ITS LENGTH FOR RESPONDING TO SEISMIC SIGNALS COMPRISING, A FLEXIBLE CENTRAL STRESS MEMBER, PERMANENT BI-POLAR MAGNETIC ELEMENTS AND RESILIENT SPACERS STRUNG ALTERNATELY ON SAID CENTRAL STRESS MEMBER, A CONTINUOUS ELECTRICAL CONDUCTING MEANS PASSING THROUGH THE MAGNETIC FIELD OF EACH OF SAID PERMANENT MAGNETS AT SUBSTANTIALLY RIGHT ANGLES THERETO AND FORMING A COIL ABOUT SAID MAGNETIC ELEMENTS AND SPACERS, SEISMIC SIGNAL RESPONSIVE MEANS FOR PROVIDING RELATIVE MOTION BE TWEEN SAID MAGNETIC FIELD AND SAID ELECTRICAL CONDUCTING
Claim 2
Dependent Claim
86 words
A FLEXIBLE ELONGATED CABLELIKE TRANSDUCER OF SUBSTANTIALLY UNIFORM OUTER CIRCUMFERENCE ALONG ITS LENGTH FOR RESPONDING TO SEISMIC SIGNALS COMPRISING, A FLEXIBLE CENTRAL STRESS MEMBER, PERMANENT BI-POLAR MAGNETIC ELEMENTS AND RESILIENT SPACERS STRUNG ALTERNATELY ON SAID CENTRAL STRESS MEMBER, A CONTINUOUS ELECTRICAL CONDUCTING MEANS PASSING THROUGH THE MAGNETIC FIELD OF EACH OF SAID PERMANENT MAGNETS AT SUBSTANTIALLY RIGHT ANGLES THERETO AND FORMING A COIL ABOUT SAID MAGNETIC ELEMENTS AND SPACERS, SEISMIC SIGNAL RESPONSIVE MEANS FOR PROVIDING RELATIVE MOTION BE TWEEN SAID MAGNETIC FIELD AND SAID ELECTRICAL CONDUCTING
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) | 1971-03-26 | 1971-09-25 | 1972-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-26 | 1975-09-25 | 1976-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-26 | 1979-09-25 | 1980-03-26 | $7700.00 | Window Closed / Lapsed |