Patent US3091077A successfully refreshed from Google Patents.
US3091077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine control
Assignee: Nordberg Manufacturing Co
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Filing: 1960-12-29
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Granted: 1963-05-28
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Expires: 1980-12-29
Abstract
No abstract record available.
Inventors
- 👤 Bruce G Erickson
- 👤 Adam J Henriksen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:53
CPC Classifications
F; F02; F02D; F02D9/00; F02D2700/00; F02D2700/02; F02D2700/0269; F02D2700/0271
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A SYSTEM FOR MAINTAINING AN APPROXIMATELY CONSTANT AIR-FUEL RATIO IN AN ENGINE HAVING AN EXHAUST DRIVEN SUPERCHARGER SUPPLYING AIR TO THE ENGINE AND A SOURCE OF FUEL, COMPRISING AUXILIARY MEANS FOR SUPPLYING ADDITIONAL ENERGY TO THE SUPERCHARGER IN ADDITION TO THE EXHAUST ENERGY RECEIVED BY IT FROM THE ENGINE, AND MEANS RESPONSIVE TO AN UNBALANCE BETWEEN THE INLET MANIFOLD PRESSURE AND THE RATE OF FUEL BEING SUPPLIED TO ACTUATE THE AUXILIARY MEANS WHEN THE ENGINE IS SUBJECTED TO A RAPID LOAD INCREASE.
Claim 2
Independent Claim
82 words
A SYSTEM FOR MAINTAINING AN APPROXIMATELY CONSTANT AIR-FUEL RATIO IN AN ENGINE HAVING AN EXHAUST DRIVEN SUPERCHARGER SUPPLYING AIR TO THE ENGINE AND A SOURCE OF FUEL, COMPRISING AUXILIARY MEANS FOR SUPPLYING ADDITIONAL ENERGY TO THE SUPERCHARGER IN ADDITION TO THE EXHAUST ENERGY RECEIVED BY IT FROM THE ENGINE, AND MEANS RESPONSIVE TO AN UNBALANCE BETWEEN THE INLET MANIFOLD PRESSURE AND THE RATE OF FUEL BEING SUPPLIED TO ACTUATE THE AUXILIARY MEANS WHEN THE ENGINE IS SUBJECTED TO A RAPID LOAD INCREASE.
References Cited (Backward Citations)
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US2608051A
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US2533714A
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US2893366A
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US2921431A
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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) | 1966-05-27 | 1966-11-26 | 1967-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-27 | 1970-11-26 | 1971-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-27 | 1974-11-26 | 1975-05-28 | $7700.00 | Window Closed / Lapsed |