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US3274576A
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Telemetering encoder system
Assignee: Services Petroliers Schlumberger SA
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Filing: 1962-06-04
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Granted: 1966-09-20
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Expires: 1982-06-04
Abstract
No abstract record available.
Inventors
- 👤 Guignard Jean Hubert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:26
CPC Classifications
G; G08; G08C; G08C15/00; G08C15/06; G08C15/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A TELEMETERING ENCODER SYSTEM COMPRISING: A PLURALITY OF TRANSDUCER MEANS; A COMMON OUTPUT SIGNAL CHANNEL; DIODE SWITCHING CIRCUIT MEANS INCLUDING COUPLING DIODES FOR INDIVIDUALLY COUPLING THE DIFFERENT TRANSDUCER MEANS TO THE COMMON OUTPUT SIGNAL CHANNEL AND CIRCUIT MEANS FOR ACTIVATING THE COUPLING DIODES ONE AT A TIME IN SEQUENCE; AND CLAMPING CIRCUIT MEANS COUPLED TO THE COMMON OUTPUT SIGNAL CHANNEL FOR PERIODICALLY CLAMPING THE SIGNAL LEVEL IN THE OUTPUT CHANNEL AT A PREDETERMINED CONSTANT VALUE.
Claim 2
Dependent Claim
75 words
A TELEMETERING ENCODER SYSTEM COMPRISING: A PLURALITY OF TRANSDUCER MEANS; A COMMON OUTPUT SIGNAL CHANNEL; DIODE SWITCHING CIRCUIT MEANS INCLUDING COUPLING DIODES FOR INDIVIDUALLY COUPLING THE DIFFERENT TRANSDUCER MEANS TO THE COMMON OUTPUT SIGNAL CHANNEL AND CIRCUIT MEANS FOR ACTIVATING THE COUPLING DIODES ONE AT A TIME IN SEQUENCE; AND CLAMPING CIRCUIT MEANS COUPLED TO THE COMMON OUTPUT SIGNAL CHANNEL FOR PERIODICALLY CLAMPING THE SIGNAL LEVEL IN THE OUTPUT CHANNEL AT A PREDETERMINED CONSTANT VALUE.
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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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |