US3093352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power absorbing systems and components for arresting aircraft
Assignee: Douglas Aircraft Co Inc
•
Filing: 1961-06-06
•
Granted: 1963-06-11
•
Expires: 1981-06-06
Abstract
No abstract record available.
Inventors
- 👤 Bo N Hoffstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:22
CPC Classifications
B; B64; B64F; B64F1/00; B64F1/02; B64F1/029
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
AN AIRCRAFT RETARDING SYSTEM HAVING A FLEXIBLE STRAND ENGAGEABLE BY THE AIRCRAFT, COMPRISING REEL STRUCTURES UPON WHICH THE OPPOSITE ENDS OF SAID STRAND ARE NORMALLY COILED, A ROTARY VARIABLE CAPACITY HYDRAULIC DRAG DEVICE ROTATABLE WITH SAID REEL STRUCTURE TO CONTROL THE RATE AT WHICH THE STRAND IS FED FROM THE REEL STRUCTURE WHEN THE STRAND IS ENGAGED BY AN AIRCRAFT, A THROTTLE ASSEMBLY IN SAID DRAG DEVICE FOR REGULATING THE CAPACITY OF SAID DRAG DEVICE; AND CONTROL MEANS DRIVEN BY SAID STRAND AND RESPONSIVE TO THE DECELERATION OF SAID AIRCRAFT TO POSITION SAID THROTTLE ASSEMBLY TO THEREBY CONTROL THE CAPACITY OF SAID DRAG DEVICE TO DECELERATE SAID AIRCRAFT AT A PREDETERMINED RATE TO THEREBY BRING THE AIRCRAFT TO A STOP AT A PREDETERMINED ROLL-OUT DISTANCE.
Claim 2
Dependent Claim
125 words
AN AIRCRAFT RETARDING SYSTEM HAVING A FLEXIBLE STRAND ENGAGEABLE BY THE AIRCRAFT, COMPRISING REEL STRUCTURES UPON WHICH THE OPPOSITE ENDS OF SAID STRAND ARE NORMALLY COILED, A ROTARY VARIABLE CAPACITY HYDRAULIC DRAG DEVICE ROTATABLE WITH SAID REEL STRUCTURE TO CONTROL THE RATE AT WHICH THE STRAND IS FED FROM THE REEL STRUCTURE WHEN THE STRAND IS ENGAGED BY AN AIRCRAFT, A THROTTLE ASSEMBLY IN SAID DRAG DEVICE FOR REGULATING THE CAPACITY OF SAID DRAG DEVICE; AND CONTROL MEANS DRIVEN BY SAID STRAND AND RESPONSIVE TO THE DECELERATION OF SAID AIRCRAFT TO POSITION SAID THROTTLE ASSEMBLY TO THEREBY CONTROL THE CAPACITY OF SAID DRAG DEVICE TO DECELERATE SAID AIRCRAFT AT A PREDETERMINED RATE TO THEREBY BRING THE AIRCRAFT TO A STOP AT A PREDETERMINED ROLL-OUT DISTANCE.
References Cited (Backward Citations)
US1854952A
Cited
US2401291A
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US2543929A
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US2448782A
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US2731219A
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US2987278A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |