US3426322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbojet compressor stall warning indicator
Assignee: General Electric Co
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Filing: 1965-10-28
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Granted: 1969-02-04
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Expires: 1985-10-28
Abstract
No abstract record available.
Inventors
- 👤 Harold A Balo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:56
CPC Classifications
F; F04; F04D; F04D27/00; F04D27/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A COMPRESSOR STALL WARNING INDICATOR FOR A TURBOJET ENGINE COMPRISING: (A) ENGINE SPEED SENSING MEANS PRODUCING A FIRST OUTPUT SIGNAL BETWEEN FIRST AND SECOND ENGINE SPEEDS; (B) ENGINE EXHAUST GAS TEMPERATURE SENSING MEANS PRODUCING A SECOND OUTPUT SIGNAL ABOVE A PREDETERMINED EXHAUST GAS TEMPERATURE; AND (C) UTILIZATION MEANS COUPLED TO SAID SPEED SENSING MEANS AND TEMPERATURE SENSING MEANS AND RESPONSIVE TO SUSTAINED, CONCURRENT APPLICATION OF SAID FIRST AND SECOND OUTPUT SIGNALS TO PRODUCE AN INDICATION OF COMPRESSOR STALL.
Claim 2
Dependent Claim
78 words
A COMPRESSOR STALL WARNING INDICATOR FOR A TURBOJET ENGINE COMPRISING: (A) ENGINE SPEED SENSING MEANS PRODUCING A FIRST OUTPUT SIGNAL BETWEEN FIRST AND SECOND ENGINE SPEEDS; (B) ENGINE EXHAUST GAS TEMPERATURE SENSING MEANS PRODUCING A SECOND OUTPUT SIGNAL ABOVE A PREDETERMINED EXHAUST GAS TEMPERATURE; AND (C) UTILIZATION MEANS COUPLED TO SAID SPEED SENSING MEANS AND TEMPERATURE SENSING MEANS AND RESPONSIVE TO SUSTAINED, CONCURRENT APPLICATION OF SAID FIRST AND SECOND OUTPUT SIGNALS TO PRODUCE AN INDICATION OF COMPRESSOR STALL.
References Cited (Backward Citations)
US2995929A
Cited
US3181353A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-04 | 1972-08-05 | 1973-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-04 | 1976-08-05 | 1977-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-04 | 1980-08-05 | 1981-02-04 | $7700.00 | Window Closed / Lapsed |