Patent US3415247A successfully refreshed from Google Patents.
US3415247A
Expired / Lapsed
US
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Sequential programmers for automatic decompression
Assignee: Societe Nationale des Petroles dAquitaine SA
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Filing: 1966-04-13
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Granted: 1968-12-10
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Expires: 1986-04-13
Abstract
No abstract record available.
Inventors
- 👤 Louvel Bernard
- 👤 Lacoste Michel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:51
CPC Classifications
B; B63; B63C; B63C11/00; B63C11/34; B63C11/44; B63C11/02; B63C11/32; G; G05; G05B; G05B19/00; G05B19/02; G05B19/04; G05B19/08; G05B19/10; G05B19/106; G05D; G05D16/00; G05D16/20; G05B2219/00; G05B2219/20; G05B2219/23; G05B2219/23199; G05B2219/23201; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7758; Y10T137/7761
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
AUTOMATIC DECOMPRESSION APPARATUS HAVING A DECOMPRESSION CHAMBER, AND A SEQUENTIAL PROGRAMMER THAT COMPRISES (A) A MEMBER FOR CONTROLLING THE INTERNAL PRESSURE OF SAID CHAMBER, MEANS FOR CYCLICALLY OPENING AND CLOSING SAID MEMBER TO PERMIT THE EXECUTION OF A PROGRAMME OF DEGREES OF DECOMPRESSION AND LINEAR DECOMPRESSIONS, AND A DIODE MATRIX FOR SETTING UP AND INDICATING SAID PROGRAMME; (B) MEANS FOR COMPARING THE VOLTAGE PROPORTIONAL TO THE PRESSURE PREVAILING IN SAID CHAMBER WITH A VOLTAGE DELIVERED BY AN ANALOGUE-DIGITAL-CONVERTER CONNECTED TO A DIGITAL COUNTER WHOSE CONTENTS VARY BY ONE UNIT AT PERIODS OF TIME DEFINED BY A MULTIVIBRATOR, WHEN THE VALUE OF THE CONTENTS OF SAID COUNTER AND THE PROGRAMMED VALUE FOR THE FOLLOWING DECOMPRESSION STEP ARE NOT EQUAL; AND (C) AN ALARM SYSTEM ASSOCIATED WITH SAID COMPARISON SYSTEM FOR CONTROLLING THE COMPLETE STOPPING OF DECOMPRESSION IN THE CASE OF ASCERTAINED ANOMALY, AND FOR EFFECTING AN OPTIONAL RECOMPRESSION.
Claim 2
Dependent Claim
147 words
AUTOMATIC DECOMPRESSION APPARATUS HAVING A DECOMPRESSION CHAMBER, AND A SEQUENTIAL PROGRAMMER THAT COMPRISES (A) A MEMBER FOR CONTROLLING THE INTERNAL PRESSURE OF SAID CHAMBER, MEANS FOR CYCLICALLY OPENING AND CLOSING SAID MEMBER TO PERMIT THE EXECUTION OF A PROGRAMME OF DEGREES OF DECOMPRESSION AND LINEAR DECOMPRESSIONS, AND A DIODE MATRIX FOR SETTING UP AND INDICATING SAID PROGRAMME; (B) MEANS FOR COMPARING THE VOLTAGE PROPORTIONAL TO THE PRESSURE PREVAILING IN SAID CHAMBER WITH A VOLTAGE DELIVERED BY AN ANALOGUE-DIGITAL-CONVERTER CONNECTED TO A DIGITAL COUNTER WHOSE CONTENTS VARY BY ONE UNIT AT PERIODS OF TIME DEFINED BY A MULTIVIBRATOR, WHEN THE VALUE OF THE CONTENTS OF SAID COUNTER AND THE PROGRAMMED VALUE FOR THE FOLLOWING DECOMPRESSION STEP ARE NOT EQUAL; AND (C) AN ALARM SYSTEM ASSOCIATED WITH SAID COMPARISON SYSTEM FOR CONTROLLING THE COMPLETE STOPPING OF DECOMPRESSION IN THE CASE OF ASCERTAINED ANOMALY, AND FOR EFFECTING AN OPTIONAL RECOMPRESSION.
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) | 1971-12-10 | 1972-06-10 | 1972-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-10 | 1976-06-10 | 1976-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-10 | 1980-06-10 | 1980-12-10 | $7700.00 | Window Closed / Lapsed |