US3524319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rocket engine with cooling walls of combustion chamber with oxygensupplying liquid
Assignee: Bolkow GmbH
•
Filing: 1955-05-03
•
Granted: 1970-08-18
•
Expires: 1975-05-03
Abstract
No abstract record available.
Inventors
- 👤 Karl Stockel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:25
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/42; F02K9/60; F02K9/62; F02K9/64
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A JET ENGINE COMPRISING A HOLLOW, ELONGATED CASING DEFINING AT LEAST ONE COMBUSTION CHAMBER THEREIN, AN OUTFLOW NOZZLE HAVING A DISCHARGE OPENING FOR EXHAUST GASES, SAID NOZZLE BEING CONNECTED TO SAID CASING AT ONE END THEREOF AND COMMUNICATING WITH SAID CHAMBER, FIRST COOLING DUCTS EXTERIORLY OF SAID CHAMBER AND EXTENDING LONGITUDINALLY OF SAID CASING, SECOND COOLING DUCTS ADJACENT SAID NOZZLE AND EXTENDING SUBSTANTIALLY LONGITUDINALLY AND EXTERIORLY OF SAID NOZZLE, SAID FIRST DUCTS COMMUNICATING WITH SAID SECOND DUCTS, RESPECTIVELY, AT THE JUNCTION OF SAID CASING AND SAID NOZZLE, SOME OF SAID FIRST DUCTS COMMUNICATING WITH SAID COMBUSTION CHAMBER AT THE END OF SAID CASING REMOTE FROM SAID JUNCTION, MEANS POSITIONED ADJACENT SAID DISCHARGE OPENING OF SAID NOZZLE FOR ESTABLISHING COMMUNICATION BETWEEN PREDETERMINED SECOND DUCTS, AND A CENTRIFUGAL PUMP DISPOSED ADJACENT SAID CASING AND COMMUNICATING WITH THE REMAINING FIRST DUCTS
Claim 2
Dependent Claim
138 words
A JET ENGINE COMPRISING A HOLLOW, ELONGATED CASING DEFINING AT LEAST ONE COMBUSTION CHAMBER THEREIN, AN OUTFLOW NOZZLE HAVING A DISCHARGE OPENING FOR EXHAUST GASES, SAID NOZZLE BEING CONNECTED TO SAID CASING AT ONE END THEREOF AND COMMUNICATING WITH SAID CHAMBER, FIRST COOLING DUCTS EXTERIORLY OF SAID CHAMBER AND EXTENDING LONGITUDINALLY OF SAID CASING, SECOND COOLING DUCTS ADJACENT SAID NOZZLE AND EXTENDING SUBSTANTIALLY LONGITUDINALLY AND EXTERIORLY OF SAID NOZZLE, SAID FIRST DUCTS COMMUNICATING WITH SAID SECOND DUCTS, RESPECTIVELY, AT THE JUNCTION OF SAID CASING AND SAID NOZZLE, SOME OF SAID FIRST DUCTS COMMUNICATING WITH SAID COMBUSTION CHAMBER AT THE END OF SAID CASING REMOTE FROM SAID JUNCTION, MEANS POSITIONED ADJACENT SAID DISCHARGE OPENING OF SAID NOZZLE FOR ESTABLISHING COMMUNICATION BETWEEN PREDETERMINED SECOND DUCTS, AND A CENTRIFUGAL PUMP DISPOSED ADJACENT SAID CASING AND COMMUNICATING WITH THE REMAINING FIRST DUCTS
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) | 1973-08-17 | 1974-02-16 | 1974-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-17 | 1978-02-16 | 1978-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-17 | 1982-02-16 | 1982-08-18 | $7700.00 | Window Closed / Lapsed |