Patent US3372548A successfully refreshed from Google Patents.
US3372548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rocket nozzle
Assignee: ATK Launch Systems LLC
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Filing: 1965-06-17
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Granted: 1968-03-12
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Expires: 1985-06-17
Abstract
No abstract record available.
Inventors
- 👤 John R Mathis
- 👤 George E Bush
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:56
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/97
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
ROCKET MOTOR COMPRISING A PROPELLANT CONTAINING CASING, A CONVERGING-DIVERGING NOZZLE ATTACHED TO SAID CASING, SAID NOZZLE COMPRISING A BASE SUBSTANTIALLY INCLUDING THE CONVERGING-DIVERGING PORTIONS THEREOF, A SEAT IN SAID BASE, AN ANNULAR MEMBER ENGAGING SAID SEAT INTERMEDIATE SAID NOZZLE CONVERGING-DIVERGING PORTIONS IN SAID BASE INCLUDING A THROAT, SAID ANNULAR MEMBER AND SAID SEAT DEFINING A SUBSTANTIALLY ANNULAR HOT GAS FILLABLE SPACE THEREBETWEEN, A REMOVABLE, ANNULAR MEMBER RETAINING MEANS COMPRISING A REINFORCING MEMBER HAVING A SUBSTANTIALLY CIRCULAR BASE PORTION POSITIONED IN SAID NOZZLE AGAINST THE DIVERGING SECTION THEREOF AND A VERTICAL ROD PORTION EXTENDING FROM SAID BASE PORTION INTERIORLY OF SAID ANNULAR MEMBER, AND A FOAMED PLASTIC PLUG SUPPORTED ON SAID BASE PORTION AND SAID ROD PORTION CONTACTING SAID NOZZLE BASE IN AT LEAST THE DIVERGING SECTION THEREOF FOR RETAINING SAID ANNULAR MEMBER IN SAID SEAT PRIOR TO IGNITION OF SAID MOTOR.
Claim 2
Dependent Claim
141 words
ROCKET MOTOR COMPRISING A PROPELLANT CONTAINING CASING, A CONVERGING-DIVERGING NOZZLE ATTACHED TO SAID CASING, SAID NOZZLE COMPRISING A BASE SUBSTANTIALLY INCLUDING THE CONVERGING-DIVERGING PORTIONS THEREOF, A SEAT IN SAID BASE, AN ANNULAR MEMBER ENGAGING SAID SEAT INTERMEDIATE SAID NOZZLE CONVERGING-DIVERGING PORTIONS IN SAID BASE INCLUDING A THROAT, SAID ANNULAR MEMBER AND SAID SEAT DEFINING A SUBSTANTIALLY ANNULAR HOT GAS FILLABLE SPACE THEREBETWEEN, A REMOVABLE, ANNULAR MEMBER RETAINING MEANS COMPRISING A REINFORCING MEMBER HAVING A SUBSTANTIALLY CIRCULAR BASE PORTION POSITIONED IN SAID NOZZLE AGAINST THE DIVERGING SECTION THEREOF AND A VERTICAL ROD PORTION EXTENDING FROM SAID BASE PORTION INTERIORLY OF SAID ANNULAR MEMBER, AND A FOAMED PLASTIC PLUG SUPPORTED ON SAID BASE PORTION AND SAID ROD PORTION CONTACTING SAID NOZZLE BASE IN AT LEAST THE DIVERGING SECTION THEREOF FOR RETAINING SAID ANNULAR MEMBER IN SAID SEAT PRIOR TO IGNITION OF SAID MOTOR.
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) | 1971-03-12 | 1971-09-11 | 1972-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-12 | 1975-09-11 | 1976-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-12 | 1979-09-11 | 1980-03-12 | $7700.00 | Window Closed / Lapsed |