US3231197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansible nozzle
Assignee: Boeing Co
•
Filing: 1964-04-17
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Granted: 1966-01-25
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Expires: 1984-04-17
Abstract
No abstract record available.
Inventors
- 👤 Thomas H Strom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:31
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/06; F02K1/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
91 words
A NOZZLE ASSEMBLY COMPRISING: (A) AN ANNULAR RING, (B) A PLURALITY OF FINGER-LIKE CONTROL ARMS PIVOTALLY ATTACHED TO SAID ANNULAR RING, (C) A PLURALITY OF LONGITUDINALLY EXTENDING CIRCUMFERENTIAL SEGMENTS SECURED BETWEEN ADJACENT CONTROL ARMS, EACH OF SAID SEGMENTS COMPRISING A COLLAPSIBLE CELLULAR STRUCTURE HAVING INDIVIDUAL CELLS EXTENDING THE FULL LENGTH OF SAID LONGITUDINAL SEGMENTS WHEREBY RADIAL MOVEMENT OF SAID CONTROL ARMS IN A DIRECTION TO INCREASE THE NOZZLE AREA CAUSES SAID CELLULAR STRUCTURE TO LATERALLY EXPAND THEREBY MAINTAINING A SUBSTANTIALLY SMOOTH NOZZLE INNER SURFACE AND PREVENTING RADIAL LEAKAGE THROUGH SAID SURFACE.
Claim 2
Dependent Claim
91 words
A NOZZLE ASSEMBLY COMPRISING: (A) AN ANNULAR RING, (B) A PLURALITY OF FINGER-LIKE CONTROL ARMS PIVOTALLY ATTACHED TO SAID ANNULAR RING, (C) A PLURALITY OF LONGITUDINALLY EXTENDING CIRCUMFERENTIAL SEGMENTS SECURED BETWEEN ADJACENT CONTROL ARMS, EACH OF SAID SEGMENTS COMPRISING A COLLAPSIBLE CELLULAR STRUCTURE HAVING INDIVIDUAL CELLS EXTENDING THE FULL LENGTH OF SAID LONGITUDINAL SEGMENTS WHEREBY RADIAL MOVEMENT OF SAID CONTROL ARMS IN A DIRECTION TO INCREASE THE NOZZLE AREA CAUSES SAID CELLULAR STRUCTURE TO LATERALLY EXPAND THEREBY MAINTAINING A SUBSTANTIALLY SMOOTH NOZZLE INNER SURFACE AND PREVENTING RADIAL LEAKAGE THROUGH SAID SURFACE.
Claim 3
Dependent Claim
24 words
A SELF-REGULATED VARIABLE AREA NOZZLE ASSEMBLY COMPRISING: (A) AN ANNULAR RING, (B) A PLURALITY OF FINGER-LIKE CONTROL ARMS PIVOTALLY ATTACHED TO SAID ANNULAR RING,
Claim 4
Dependent Claim
24 words
A SELF-REGULATED VARIABLE AREA NOZZLE ASSEMBLY COMPRISING: (A) AN ANNULAR RING, (B) A PLURALITY OF FINGER-LIKE CONTROL ARMS PIVOTALLY ATTACHED TO SAID ANNULAR RING,
References Cited (Backward Citations)
US2634578A
Cited
US2940251A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |