US3233451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for measuring thrust in jet-type engines
Assignee: Individual
•
Filing: 1961-02-17
•
Granted: 1966-02-08
•
Expires: 1981-02-17
Abstract
No abstract record available.
Inventors
- 👤 Daniel G Russ
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:44
CPC Classifications
G; G01; G01L; G01L5/00; G01L5/13; G01L5/133
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A GROSS THRUST METER FOR A JET-TYPE ENGINE COMPRISING A FUNCTION GENERATOR FOR RECEIVING SIGNALS REPRESENTING TOTAL AND STATIC PRESSURES IN THE EXHAUST REGION OF THE ENGINE AND PRODUCING AN OUTPUT SIGNAL PROPORTIONAL TO A PREDETERMINED FUNCTION OF THE RATIO OF TOTAL TO STATIC PRESSURE IN THE EXHAUST REGION, MEANS FOR PRODUCING AN OUTPUT SIGNAL PROPORTIONAL TO THE RATIO OF TOTAL PRESSURE IN THE EXHAUST REGION AND THE AMBIENT PRESSURE, PRIMARY BRIDGE MEANS FOR RECEIVING AS INPUTS EACH OF THESE OUTPUT SIGNALS TOGETHER WITH A SIGNAL PROPORTIONAL TO THE SIZE FACTOR AT THE EXHAUST REGION AND COMBINING THESE SIGNALS TO PRODUCE AN OUTPUT SIGNAL PROPORTIONAL TO THE PRODUCT OF THESE INPUT EFFECTS TO PRODUCE GROSS THRUST.
Claim 2
Dependent Claim
116 words
A GROSS THRUST METER FOR A JET-TYPE ENGINE COMPRISING A FUNCTION GENERATOR FOR RECEIVING SIGNALS REPRESENTING TOTAL AND STATIC PRESSURES IN THE EXHAUST REGION OF THE ENGINE AND PRODUCING AN OUTPUT SIGNAL PROPORTIONAL TO A PREDETERMINED FUNCTION OF THE RATIO OF TOTAL TO STATIC PRESSURE IN THE EXHAUST REGION, MEANS FOR PRODUCING AN OUTPUT SIGNAL PROPORTIONAL TO THE RATIO OF TOTAL PRESSURE IN THE EXHAUST REGION AND THE AMBIENT PRESSURE, PRIMARY BRIDGE MEANS FOR RECEIVING AS INPUTS EACH OF THESE OUTPUT SIGNALS TOGETHER WITH A SIGNAL PROPORTIONAL TO THE SIZE FACTOR AT THE EXHAUST REGION AND COMBINING THESE SIGNALS TO PRODUCE AN OUTPUT SIGNAL PROPORTIONAL TO THE PRODUCT OF THESE INPUT EFFECTS TO PRODUCE GROSS THRUST.
References Cited (Backward Citations)
GB580149A
Cited
US2524749A
Cited
US2701576A
Cited
US2539616A
Cited
US2740295A
Cited
US2643055A
Cited
US2800913A
Cited
US2866332A
Cited
US2829828A
Cited
US3038301A
Cited
US2957622A
Cited
US2941399A
Cited
US2981098A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |