US3208552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for cooling and muffling hot gas jets
Assignee: Individual
•
Filing: 1964-02-07
•
Granted: 1965-09-28
•
Expires: 1984-02-07
Abstract
No abstract record available.
Inventors
- 👤 Seifert Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:53
CPC Classifications
B; B64; B64F; B64F1/00; B64F1/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A DEVICE FOR COOLING AND MUFFLING HOT GAS JETS, PARTICULARLY OF JET ENGINES AND ROCKET DRIVES, COMPRISING A ROTATABLE GAS DUCT, MEANS FOR ROTATING SAID GAS DUCT ABOUT ITS LONGITUDINAL AXIS, MEANS FOR PRODUCING AN ANNULAR COOLING LIQUID COATING ON THE INNER SURFACE OF SAID GAS DUCT DURING ROTATION THEREOF, AND A WATER-RING STUFFING BOX FOR SEALING SAID GAS DUCT OFF AGAINST A JET PIPE.
Claim 2
Independent Claim
65 words
A DEVICE FOR COOLING AND MUFFLING HOT GAS JETS, PARTICULARLY OF JET ENGINES AND ROCKET DRIVES, COMPRISING A ROTATABLE GAS DUCT, MEANS FOR ROTATING SAID GAS DUCT ABOUT ITS LONGITUDINAL AXIS, MEANS FOR PRODUCING AN ANNULAR COOLING LIQUID COATING ON THE INNER SURFACE OF SAID GAS DUCT DURING ROTATION THEREOF, AND A WATER-RING STUFFING BOX FOR SEALING SAID GAS DUCT OFF AGAINST A JET PIPE.
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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |