US3302398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pulse control
Assignee: Bendix Corp
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Filing: 1963-06-25
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Granted: 1967-02-07
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Expires: 1983-06-25
Abstract
No abstract record available.
Inventors
- 👤 Lael B Taplin
- 👤 Jr Walter F Datwyler
- 👤 Joseph P Madurski
- 👤 Thomas E Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:30
CPC Classifications
G; G05; G05D; G05D13/00; G05D13/08; G05D13/30; F; F02; F02C; F02C9/00; F02C9/16; F02K; F02K3/00; F15; F15C; F15C4/00; F15C5/00; G01; G01K; G01K13/00; G01K13/02; G01P; G01P3/00; G01P3/26; G05D13/34; G05D13/36; G05D13/44; Y; Y10; Y10S; Y10S261/00; Y10S261/69; Y10T; Y10T137/00; Y10T137/206; Y10T137/218; Y10T137/2185
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
AN ENGINE FUEL CONTROL COMPRISING: A FIRST PNEUMATIC PULSE GENERATOR PRODUCING A PULSE TRAIN SIGNAL OF CONTROLLED FREQUENCY, FUEL CONTROL MEANS RESPONSIVE TO FREQUENCY OF A PNEUMATIC PULSE TRAIN SIGNAL FOR CONTROLLING FUEL DELIVERY, PASSAGE MEANS INTERCONNECTING SAID PULSE GENERATOR AND SAID FUEL CONTROL MEANS FOR TRANSMITTING SAID SELECTED FREQUENCY PULSE TRAIN SIGNAL TO SAID FUEL CONTROL MEANS, A GATE VALVE DISPOSED IN SAID PASSAGE MEANS OPERATIVE TO BLOCK SELECTED PULSES TRANSMITTED TO SAID FUEL CONTROL MEANS IN RESPONSE TO A GATE PULSE SIGNAL, A PNEUMATIC PULSE TEMPERATURE SENSOR PRODUCING A PULSE TRAIN HAVING A PULSE FREQUENCY THAT VARIES WITH ACTUAL ENGINE TEMPERATURE, A SECOND PNEUMATIC PULSE GENERATOR PRODUCING AN OUTPUT PULSE TRAIN SIGNAL HAVING A FREQUENCY REPRESENTATIVE OF A PERMISSIBLE REFERENCE TEMPERATURE, COMPARISON MEANS CONNECTED TO SAID TEMPERATURE SENSOR AND SAID SECOND PULSE GENERATOR OPERATIVE TO PRODUCE A PULSE SIGNAL HAVING A FREQUENCY REPRESENTATIVE OF THE DIFFERENCE BETWEEN ACTUAL AND REFERENCE TEMPERATURES, SAID COMPARISON MEANS BEING FURTHER CONNECTED TO SAID GATE VALVE TO PROVIDE SAID SIGNAL REPRESENTATIVE OF TEMPERATURE DIFFERENCE AS A GATE PULSE SIGNAL.
Claim 2
Dependent Claim
176 words
AN ENGINE FUEL CONTROL COMPRISING: A FIRST PNEUMATIC PULSE GENERATOR PRODUCING A PULSE TRAIN SIGNAL OF CONTROLLED FREQUENCY, FUEL CONTROL MEANS RESPONSIVE TO FREQUENCY OF A PNEUMATIC PULSE TRAIN SIGNAL FOR CONTROLLING FUEL DELIVERY, PASSAGE MEANS INTERCONNECTING SAID PULSE GENERATOR AND SAID FUEL CONTROL MEANS FOR TRANSMITTING SAID SELECTED FREQUENCY PULSE TRAIN SIGNAL TO SAID FUEL CONTROL MEANS, A GATE VALVE DISPOSED IN SAID PASSAGE MEANS OPERATIVE TO BLOCK SELECTED PULSES TRANSMITTED TO SAID FUEL CONTROL MEANS IN RESPONSE TO A GATE PULSE SIGNAL, A PNEUMATIC PULSE TEMPERATURE SENSOR PRODUCING A PULSE TRAIN HAVING A PULSE FREQUENCY THAT VARIES WITH ACTUAL ENGINE TEMPERATURE, A SECOND PNEUMATIC PULSE GENERATOR PRODUCING AN OUTPUT PULSE TRAIN SIGNAL HAVING A FREQUENCY REPRESENTATIVE OF A PERMISSIBLE REFERENCE TEMPERATURE, COMPARISON MEANS CONNECTED TO SAID TEMPERATURE SENSOR AND SAID SECOND PULSE GENERATOR OPERATIVE TO PRODUCE A PULSE SIGNAL HAVING A FREQUENCY REPRESENTATIVE OF THE DIFFERENCE BETWEEN ACTUAL AND REFERENCE TEMPERATURES, SAID COMPARISON MEANS BEING FURTHER CONNECTED TO SAID GATE VALVE TO PROVIDE SAID SIGNAL REPRESENTATIVE OF TEMPERATURE DIFFERENCE AS A GATE PULSE SIGNAL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |