US3143181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seismic transducer and cushioning device therefor
Assignee: ConocoPhillips Co
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Filing: 1961-12-06
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Granted: 1964-08-04
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Expires: 1981-12-06
Abstract
No abstract record available.
Inventors
- 👤 Marvin G Bays
- 👤 Graydon L Brown
- 👤 Henry A Wakefield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:19
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/02; G01V1/143; G01V1/155
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A SEISMOGRAPHIC TRANSDUCER FOR IMPARTING SEISMIC VIBRATION SIGNALS TO THE EARTH COMPRISING, IN COMBINATION: A MASS MEMBER; A GROUND-ENGAGING MEMBER; A LINEAR ACTUATOR INTERCONNECTING THE TWO MEMBERS FOR RECIPROCATING THE MASS MEMBER VERTICALLY RELATIVE TO THE GROUND-ENGAGING MEMBER WITH THE MASS MEMBER HAVING UPPER AND LOWER LIMITS OF TRAVEL; UPPER AND LOWER CUSHIONING MEANS DISPOSED AT THE UPPER AND LOWER LIMITS OF TRAVEL, RESPECTIVELY, OF THE MASS MEMBER, EACH CUSHIONING MEANS COMPRISING MEANS FORMING A VARIABLE VOLUME CUSHIONING CHAMBER, THE VOLUME OF THE RESPECTIVE CUSHIONING CHAMBER BEING DECREASED AS A CONSEQUENCE OF THE MASS MEMBER APPROACHING THE RESPECTIVE LIMIT OF TRAVEL, A BODY OF RUBBER IN EACH CUSHIONING CHAMBER, THE BODY OF RUBBER HAVING AN UNCOMPRESSED VOLUME LESS THAN THE CORRESPONDING VOLUME OF THE CUSHIONING CHAMBER WHEN THE BODY OF RUBBER IS UNCOMPRESSED, WHEREBY AS THE MASS MEMBER APPROACHES THE LIMITS OF TRAVEL, THE RESPECTIVE CUSHIONING CHAMBER WILL BE DE-
Claim 2
Dependent Claim
150 words
A SEISMOGRAPHIC TRANSDUCER FOR IMPARTING SEISMIC VIBRATION SIGNALS TO THE EARTH COMPRISING, IN COMBINATION: A MASS MEMBER; A GROUND-ENGAGING MEMBER; A LINEAR ACTUATOR INTERCONNECTING THE TWO MEMBERS FOR RECIPROCATING THE MASS MEMBER VERTICALLY RELATIVE TO THE GROUND-ENGAGING MEMBER WITH THE MASS MEMBER HAVING UPPER AND LOWER LIMITS OF TRAVEL; UPPER AND LOWER CUSHIONING MEANS DISPOSED AT THE UPPER AND LOWER LIMITS OF TRAVEL, RESPECTIVELY, OF THE MASS MEMBER, EACH CUSHIONING MEANS COMPRISING MEANS FORMING A VARIABLE VOLUME CUSHIONING CHAMBER, THE VOLUME OF THE RESPECTIVE CUSHIONING CHAMBER BEING DECREASED AS A CONSEQUENCE OF THE MASS MEMBER APPROACHING THE RESPECTIVE LIMIT OF TRAVEL, A BODY OF RUBBER IN EACH CUSHIONING CHAMBER, THE BODY OF RUBBER HAVING AN UNCOMPRESSED VOLUME LESS THAN THE CORRESPONDING VOLUME OF THE CUSHIONING CHAMBER WHEN THE BODY OF RUBBER IS UNCOMPRESSED, WHEREBY AS THE MASS MEMBER APPROACHES THE LIMITS OF TRAVEL, THE RESPECTIVE CUSHIONING CHAMBER WILL BE DE-
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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) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |