Patent US3085845A successfully refreshed from Google Patents.
US3085845A
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Apparatus for recording geophysical signals on a depth basis
Assignee: Texas Instruments Inc
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Filing: 1957-10-28
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Granted: 1963-04-16
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Expires: 1977-10-28
Abstract
No abstract record available.
Inventors
- 👤 Perry Edward Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:20
CPC Classifications
G; G01; G01D; G01D15/00; G01D15/24; G01V; G01V1/00; G01V1/28; G01V1/32; G01D2205/00; G01D2205/70; G01D2205/77; G01D2205/777
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
IN AN APPARATUS FOR RECORDING GEOPHYSICAL SIGNALS TRAVELLING AT PREDETERMINED ACTUAL VELOCITIES, THE COMBINATION COMPRISING A PAPER DRIVE ROLLER, A CHART DRIVEN BY SAID ROLLER, A DIFFERENTIAL HAVING FIRST AND SECOND INPUTS, AN OUTPUT CONNECTED TO SAID ROLLER FOR DRIVING SAID ROLLER, A FIRST DRIVE INPUT MEANS TO SAID DIFFERENTIAL TO DRIVE SAID FIRST INPUT AT A CONSTANT SPEED PROPORTIONAL TO THE AVERAGE VELOCITY OF SAID GEOPHYSICAL SIGNALS IN THE GROUND, AND A SECOND DRIVE INPUT MEANS TO SAID SECOND INPUT INCLUDING A FUNCTION GENERATOR TO DRIVE SAID SECOND INPUT AT PREDETERMINED VARIABLE SPEEDS PROPORTIONAL TO THE DIFFERENCE IN SPEED BETWEEN THE ACTUAL VELOCITIES AND THE AVERAGE VELOCITY OF SAID GEOPHYSICAL SIGNALS WHEREBY SAID
Claim 2
Dependent Claim
114 words
IN AN APPARATUS FOR RECORDING GEOPHYSICAL SIGNALS TRAVELLING AT PREDETERMINED ACTUAL VELOCITIES, THE COMBINATION COMPRISING A PAPER DRIVE ROLLER, A CHART DRIVEN BY SAID ROLLER, A DIFFERENTIAL HAVING FIRST AND SECOND INPUTS, AN OUTPUT CONNECTED TO SAID ROLLER FOR DRIVING SAID ROLLER, A FIRST DRIVE INPUT MEANS TO SAID DIFFERENTIAL TO DRIVE SAID FIRST INPUT AT A CONSTANT SPEED PROPORTIONAL TO THE AVERAGE VELOCITY OF SAID GEOPHYSICAL SIGNALS IN THE GROUND, AND A SECOND DRIVE INPUT MEANS TO SAID SECOND INPUT INCLUDING A FUNCTION GENERATOR TO DRIVE SAID SECOND INPUT AT PREDETERMINED VARIABLE SPEEDS PROPORTIONAL TO THE DIFFERENCE IN SPEED BETWEEN THE ACTUAL VELOCITIES AND THE AVERAGE VELOCITY OF SAID GEOPHYSICAL SIGNALS WHEREBY SAID
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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) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |