Patent US4586122A successfully refreshed from Google Patents.
Patent US3142750A successfully refreshed from Google Patents.
US3142750A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seismic analog record computer
Assignee: Pan American Petroleum Corp
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Filing: 1960-06-29
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Granted: 1964-07-28
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Expires: 1980-06-29
Abstract
No abstract record available.
Inventors
- 👤 Silverman Daniel
- 👤 Charles F Hadley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:05
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/28; G01V1/282; G01V1/24; G01V1/245
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
A SEISMIC ANALOG RECORD COMPUTER COMPRISING A WAVELET GENERATOR INCLUDING AT LEAST ONE ELECTRICALLY CONDUCTIVE ELEMENT AND A DIRECT-CURRENT VOLTAGE SOURCE CONNECTED SO THERETO THAT THE VOLTAGE CONTINUOUSLY PRESENT THEREON VARIES ALONG THE LENGTH OF SAID ELEMENT AS THE ASSUMED WAVE-FORM OF A SEISMIC REFLECTION WAVELET, A PLURALITY OF CONTACTORS EACH ADAPTED TO CONTACT SAID ELEMENT AND BY SCANNING ALONG IT TO DRIVE SAID BOLTAGE WAVEFORM DIRECTLY THEREFROM, MEANS TO PRODUCE SCANNING OF SAID ELEMENT BY SAID CONTACTORS IN SEQUENCE WITH SPACINGS PROPORTIONAL TO THE TWO-WAY SEISMIC REFLECTION TRAVEL TIMES TO A CORRESPONDING PLURALITY OF SUBSURFACE SEISMIC-WAVEREFLECTING INTERFACES, MEANS CONNECTED TO EACH OF SAID CONTACTORS FOR MODIFYING THE AMPLITUDE OF THE VOLTAGE DERIVED BY IT FROM SAID ELEMENT IN DEPENDENCE UPON THE REFLECTION COEFFICIENT OF THE CORRESPONDING AND OF SAID INTERFACES, MEANS CONNECTED TO SAID MODIFYING MEANS FOR SUMMING ALL OF SAID CONTACTOR VOLTAGES SO MODIFIED AND WITH PHASES CORRESPONDING TO THE POLARITIES OF THE CORRE-
Claim 2
Dependent Claim
156 words
A SEISMIC ANALOG RECORD COMPUTER COMPRISING A WAVELET GENERATOR INCLUDING AT LEAST ONE ELECTRICALLY CONDUCTIVE ELEMENT AND A DIRECT-CURRENT VOLTAGE SOURCE CONNECTED SO THERETO THAT THE VOLTAGE CONTINUOUSLY PRESENT THEREON VARIES ALONG THE LENGTH OF SAID ELEMENT AS THE ASSUMED WAVE-FORM OF A SEISMIC REFLECTION WAVELET, A PLURALITY OF CONTACTORS EACH ADAPTED TO CONTACT SAID ELEMENT AND BY SCANNING ALONG IT TO DRIVE SAID BOLTAGE WAVEFORM DIRECTLY THEREFROM, MEANS TO PRODUCE SCANNING OF SAID ELEMENT BY SAID CONTACTORS IN SEQUENCE WITH SPACINGS PROPORTIONAL TO THE TWO-WAY SEISMIC REFLECTION TRAVEL TIMES TO A CORRESPONDING PLURALITY OF SUBSURFACE SEISMIC-WAVEREFLECTING INTERFACES, MEANS CONNECTED TO EACH OF SAID CONTACTORS FOR MODIFYING THE AMPLITUDE OF THE VOLTAGE DERIVED BY IT FROM SAID ELEMENT IN DEPENDENCE UPON THE REFLECTION COEFFICIENT OF THE CORRESPONDING AND OF SAID INTERFACES, MEANS CONNECTED TO SAID MODIFYING MEANS FOR SUMMING ALL OF SAID CONTACTOR VOLTAGES SO MODIFIED AND WITH PHASES CORRESPONDING TO THE POLARITIES OF THE CORRE-
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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) | 1967-07-28 | 1968-01-27 | 1968-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-28 | 1972-01-27 | 1972-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-28 | 1976-01-27 | 1976-07-28 | $7700.00 | Window Closed / Lapsed |