US3147459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High dynamic range seismic recording system
Assignee: Jersey Production Research Co
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Filing: 1961-12-26
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Granted: 1964-09-01
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Expires: 1981-12-26
Abstract
No abstract record available.
Inventors
- 👤 Ed R Mccarter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:49
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/24; G01V1/245
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A SYSTEM FOR RECORDING A SEIMIC SIGNAL DETECTED BY A GEOPHONE WHICH COMPRISES IN COMBINATION: A HIGH FREQUENCY FADER VOLTAGE SOURCE, WHOSE OUTPUT HAS A FREQUENCY AT LEAST TWICE THE FREQUENCY OF THE SEISMIC SIGNAL; A HIGH FREQUENCY AGC LOOP HAVING A LOSSER ELEMENT WHICH IS RESPONSIVE TO A FREQUENCY CORRESPONDING TO THE OUTPUT OF SAID HIGH FREQUENCY FADER VOLTAGE SOURCE; MEANS TO CONNECT THE OUTPUT OF SAID HIGH FREQUENCY FADER VOLTAGE SOURCE AND THE OUTPUT FROM THE GEOPHONE TO SAID HIGH FREQUENCY AGC LOOP; A FILTER CONNECTED TO THE OUTPUT OF SAID HIGH FREQUENCY AGC LOOP AND OF A CHARACTER TO PASS THERETHROUGH THOSE FREQUENCIES CONTAINED BY THE SEISMIC
Claim 2
Independent Claim
110 words
A SYSTEM FOR RECORDING A SEIMIC SIGNAL DETECTED BY A GEOPHONE WHICH COMPRISES IN COMBINATION: A HIGH FREQUENCY FADER VOLTAGE SOURCE, WHOSE OUTPUT HAS A FREQUENCY AT LEAST TWICE THE FREQUENCY OF THE SEISMIC SIGNAL; A HIGH FREQUENCY AGC LOOP HAVING A LOSSER ELEMENT WHICH IS RESPONSIVE TO A FREQUENCY CORRESPONDING TO THE OUTPUT OF SAID HIGH FREQUENCY FADER VOLTAGE SOURCE; MEANS TO CONNECT THE OUTPUT OF SAID HIGH FREQUENCY FADER VOLTAGE SOURCE AND THE OUTPUT FROM THE GEOPHONE TO SAID HIGH FREQUENCY AGC LOOP; A FILTER CONNECTED TO THE OUTPUT OF SAID HIGH FREQUENCY AGC LOOP AND OF A CHARACTER TO PASS THERETHROUGH THOSE FREQUENCIES CONTAINED BY THE SEISMIC
References Cited (Backward Citations)
US2838742A
Cited
US3048817A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |