US3167016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rocket propelled missile
Assignee: De Havilland Aircraft of Canada Ltd
•
Filing: 1956-07-30
•
Granted: 1965-01-26
•
Expires: 1976-07-30
Abstract
No abstract record available.
Inventors
- 👤 Czerwinski Waclaw
- 👤 Chamberlin James Arthur
- 👤 Woodward Frank Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:57
CPC Classifications
F; F41; F41F; F41F3/00; F41F3/04; F02; F02K; F02K9/00; F02K9/74; F02K9/76; F02K9/763; F42; F42B; F42B10/00; F42B10/02; F42B10/26; F42B10/28; F42B10/30; F42B15/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A ROCKET PROPELLED MISSILE COMPRSING A FIRST STAGE ROCKET MOTOR INCLUDING A CYLINDRICAL SHELL, A SECOND STAGE ROCKET MOTOR INCLUDING A CYLINDRICAL SHELL COAXIALLY DISPOSED WITHIN AND SUBSTANTIALLY ENCASED BY THE FIRST STAGE MOTOR, THE CYLINDRICAL SHELL OF THE SECOND STAGE MOTOR BEING SPACED FROM THE CYLINDRICAL SHELL OF THE FIRST STAGE MOTOR DEFINE THERWITH AN ANNULAR CHAMBER, A SOLID PROPELLANT IN THE ANNULAR CHAMBER AND BONDED TO THE INNER FACE OF THE CYLINDRICAL SHELL OF THE FIRST STAGE MOTOR, IGNITING MEANS FOR THE PROPELLANT, THE SOLID PROPELLANT BEING OF ANNULAR CROSS-SECTION AND ITS INTERNAL DIAMETER BEING GREATER THAN THE EXTERNAL DIAMTERR OF THE SHELL OF THE SECONE STAGE MOTOR SO THAT AN ANNULAR PASSAGE FOR PRODUCTS OF COMBUSTION IS PROVIDED BETWEEN THE PROPELLANT AND THE SECOND STAGE MOTOR, AND AN ANNULAR NOZZLE AT THE AFT END OF THE SHELLS TO DISCHARGE TO ATMOSPHERE THE PRODUCTS OF COMBUSTION EMANATING FROM THE PASSAGE.
Claim 2
Dependent Claim
152 words
A ROCKET PROPELLED MISSILE COMPRSING A FIRST STAGE ROCKET MOTOR INCLUDING A CYLINDRICAL SHELL, A SECOND STAGE ROCKET MOTOR INCLUDING A CYLINDRICAL SHELL COAXIALLY DISPOSED WITHIN AND SUBSTANTIALLY ENCASED BY THE FIRST STAGE MOTOR, THE CYLINDRICAL SHELL OF THE SECOND STAGE MOTOR BEING SPACED FROM THE CYLINDRICAL SHELL OF THE FIRST STAGE MOTOR DEFINE THERWITH AN ANNULAR CHAMBER, A SOLID PROPELLANT IN THE ANNULAR CHAMBER AND BONDED TO THE INNER FACE OF THE CYLINDRICAL SHELL OF THE FIRST STAGE MOTOR, IGNITING MEANS FOR THE PROPELLANT, THE SOLID PROPELLANT BEING OF ANNULAR CROSS-SECTION AND ITS INTERNAL DIAMETER BEING GREATER THAN THE EXTERNAL DIAMTERR OF THE SHELL OF THE SECONE STAGE MOTOR SO THAT AN ANNULAR PASSAGE FOR PRODUCTS OF COMBUSTION IS PROVIDED BETWEEN THE PROPELLANT AND THE SECOND STAGE MOTOR, AND AN ANNULAR NOZZLE AT THE AFT END OF THE SHELLS TO DISCHARGE TO ATMOSPHERE THE PRODUCTS OF COMBUSTION EMANATING FROM THE PASSAGE.
References Cited (Backward Citations)
US562535A
Cited
US1102653A
Cited
US2091635A
Cited
US2246429A
Cited
US2611317A
Cited
US2478774A
Cited
US2701984A
Cited
US2686473A
Cited
US2818779A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-01-26 | 1968-07-27 | 1969-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-26 | 1972-07-27 | 1973-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-26 | 1976-07-27 | 1977-01-26 | $7700.00 | Window Closed / Lapsed |