Patent US3113289A successfully refreshed from Google Patents.
US3113289A
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Trigger generator for acoustic well logging systems
Assignee: Dresser Industries Inc
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Filing: 1959-01-16
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Granted: 1963-12-03
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Expires: 1979-01-16
Abstract
No abstract record available.
Inventors
- 👤 Adrian P Brokaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:58
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/40; G01V1/52; H; H03; H03K; H03K3/00; H03K3/02; H03K3/04; H03K3/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
IN AN ACOUSTIC WELL LOGGING SYSTEM HAVING A SOURCE OF ALTERNATING CURRENT, AND HAVING A TRANSDUCER ARRANGED AND ADAPTED TO TRANSDUCE SAID CURRENT INTO ACOUSTIC ENERGY, THE IMPROVEMENT IN COMBINATION THEREWITH COMPRISING A FREQUENCY DIVIDER CIRCUIT ADAPTED TO GENERATE ELECTRIC PULSES AT A REPETITION RATE FUNCTIONALLY RELATED TO THE FREQUENCY OF SAID CURRENT, TRANSFORMER MEANS INTERCONNECTED WITH SAID CIRCUIT TO SUPERPOSE SAID PULSES ON SAID CURRENT AT A POINT BETWEEN SAID SOURCE AND SAID TRANSDUCER, AND A TRIGGER CIRCUIT INTERCONNECTED TO SAID TRANSFORMER MEANS TO RECEIVE SAID SUPERPOSED PULSES AND IN RESPONSE THERETO TO REPETITIVELY ACTUATE SAID TRANSDUCER.
Claim 2
Dependent Claim
98 words
IN AN ACOUSTIC WELL LOGGING SYSTEM HAVING A SOURCE OF ALTERNATING CURRENT, AND HAVING A TRANSDUCER ARRANGED AND ADAPTED TO TRANSDUCE SAID CURRENT INTO ACOUSTIC ENERGY, THE IMPROVEMENT IN COMBINATION THEREWITH COMPRISING A FREQUENCY DIVIDER CIRCUIT ADAPTED TO GENERATE ELECTRIC PULSES AT A REPETITION RATE FUNCTIONALLY RELATED TO THE FREQUENCY OF SAID CURRENT, TRANSFORMER MEANS INTERCONNECTED WITH SAID CIRCUIT TO SUPERPOSE SAID PULSES ON SAID CURRENT AT A POINT BETWEEN SAID SOURCE AND SAID TRANSDUCER, AND A TRIGGER CIRCUIT INTERCONNECTED TO SAID TRANSFORMER MEANS TO RECEIVE SAID SUPERPOSED PULSES AND IN RESPONSE THERETO TO REPETITIVELY ACTUATE SAID TRANSDUCER.
References Cited (Backward Citations)
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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) | 1966-12-02 | 1967-06-03 | 1967-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-02 | 1971-06-03 | 1971-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-02 | 1975-06-03 | 1975-12-03 | $7700.00 | Window Closed / Lapsed |