Patent US4236686A successfully refreshed from Google Patents.
US4236686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ship compatible launch, retrieval and handling system for (VTOL) aircraft
Assignee: Grumman Corp
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Filing: 1978-09-07
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Granted: 1980-12-02
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Expires: 1998-09-07
Abstract
Abstract Manned or remotely piloted Vertical Takeoff and Landing (VTOL) aircraft is launched or retrieved from a capture drogue carried by an articulated boom. The capture drogue is stabilized in space for retrieval and launch and moves the aircraft to a platform while the drogue-aircraft are stabilized with respect to the platform.
Inventors
- 👤 Richard W. Barthelme
- 👤 John B. Leonard
- 👤 John N. Biercuk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:31
CPC Classifications
B; B64; B64F; B64F1/00; B64F1/02; B64F1/22; B64F1/222
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
167 words
A handling system for VTOL aircraft comprising: platform means for holding said aircraft; articulatible boom means including a pair of arm elements having a capture drogue at the free end thereof for said aircraft; control means for moving said boom means between a catching position wherein said drogue is stabilized with respect to free space and a landing position wherein said drogue is stabilized with respect to said platform and said aircraft is positioned on said platform, said control system including input means comprising rate and/or acceleration sensors mounted on said capture drogue; position sensors for measuring the relative angles between said arm elements and said platform means and between said arm elements and said drogue; output means comprising actuators for moving said arm elements and drogue, and automatic stabilization and control means for operating said output means in response to said input means; said boom means and drogue being operative to guide said aircraft between said positions while said aircraft is supported by its engine thrust.
Claim 2
Dependent Claim
167 words
A handling system for VTOL aircraft comprising: platform means for holding said aircraft; articulatible boom means including a pair of arm elements having a capture drogue at the free end thereof for said aircraft; control means for moving said boom means between a catching position wherein said drogue is stabilized with respect to free space and a landing position wherein said drogue is stabilized with respect to said platform and said aircraft is positioned on said platform, said control system including input means comprising rate and/or acceleration sensors mounted on said capture drogue; position sensors for measuring the relative angles between said arm elements and said platform means and between said arm elements and said drogue; output means comprising actuators for moving said arm elements and drogue, and automatic stabilization and control means for operating said output means in response to said input means; said boom means and drogue being operative to guide said aircraft between said positions while said aircraft is supported by its engine thrust.
Claim 3
Dependent Claim
18 words
The system of claim 1, wherein said platform is arranged to receive a VTOL of the tail-sitter type.
Claim 4
Dependent Claim
55 words
The system of claim 2, wherein said platform includes a first horizontal support portion and second support portion, said second portion being pivotally mounted with respect to said first portion for movement between a coplanar horizontal position and a downwardly angled position relative to said first portion, whereby split fuselage VTOL may be received thereon.
Claim 5
Dependent Claim
37 words
The system of claim 1, wherein said platform means includes means for raising and lowering said platform and means for rotating said platform, whereby said platform may be moved between a storage position to a launch position.
Claim 6
Dependent Claim
15 words
The system of claim 1, wherein said articulatible boom is rotatable about a vertical axis.
Claim 7
Dependent Claim
15 words
The system of claim 1, wherein said capture drogue includes means for refueling said aircraft.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-12-02 | 1984-06-02 | 1984-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-02 | 1988-06-02 | 1988-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-02 | 1992-06-02 | 1992-12-02 | $7700.00 | Window Closed / Lapsed |