US3799479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Loading and unloading equipment for aircraft
Assignee: Vereinigte Flugtechnische Werke Fokker GmbH
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Filing: 1973-05-31
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Granted: 1974-03-26
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Expires: 1993-05-31
Abstract
Abstract On-board loading and unloading equipment for aircraft, the aircraft being equipped for and with pallets movable in the craft along the longitudinal axis, a particular pallet is movably disposed in the cargo space of the craft and provided for being locked in position e.g. in front of the loading hatch in the aircraft; this pallet has a track extending transverse to said aircraft axis, and a carriage moves on the track, and away from the hatch; A CONVEYOR SYSTEM IS HINGED TO THE CARRIAGE AND COMPRISED OF TWO HINGEDLY INTERCONNECTED CONVEYOR BELT UNITS, ONE CAN BE FOLDED UNDER THE OTHER ONE, THE LATTER BEING HINGED TO THE CARRIAGE. The unit which is folded under for storage will be pivoted into alignment in the first phase of protracting and lowering the conveyor system as a whole. The folding and unfolding is carried out as lever linkage follower action.
Inventors
- 👤 J Roeder
- 👤 G Cerne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:48
CPC Classifications
B; B64; B64C; B64C1/00; B64C1/22
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
173 words
On-board loading and unloading equipment for aircraft, the aircraft being equipped for and with pallets movable in the craft along the longitudinal axis, there being a particular movable pallet provided for being locked in position e.g. in front of a loading hatch in the aircraft, comprising: means for defining a track on the particular pallet, the track extending transverse to said axis; a carriage on the track, movable thereon towards and away from the hatch; a conveyor system on the carriage, and comprised of plural hingedly interconnected conveyor belt units, a first one thereof being hinged to the carriage, a second one thereof provided with means for resting on the ground outside the aircraft; first means for folding the units together and for unfolding the units so that they extend in mutual alignment; and second means for operating on the first unit for raising and lowering the conveyor system, the means for resting on the second unit coming to rest external to the craft when the system is lowered by the second means.
Claim 2
Dependent Claim
173 words
On-board loading and unloading equipment for aircraft, the aircraft being equipped for and with pallets movable in the craft along the longitudinal axis, there being a particular movable pallet provided for being locked in position e.g. in front of a loading hatch in the aircraft, comprising: means for defining a track on the particular pallet, the track extending transverse to said axis; a carriage on the track, movable thereon towards and away from the hatch; a conveyor system on the carriage, and comprised of plural hingedly interconnected conveyor belt units, a first one thereof being hinged to the carriage, a second one thereof provided with means for resting on the ground outside the aircraft; first means for folding the units together and for unfolding the units so that they extend in mutual alignment; and second means for operating on the first unit for raising and lowering the conveyor system, the means for resting on the second unit coming to rest external to the craft when the system is lowered by the second means.
Claim 3
Dependent Claim
53 words
Equipment as in claim 1, the second means including at least one pivot arm hinged on the carriage and pivotally linked to the first unit, thereby hingedly connecting the first unit to the carriage; the first means including at least one control lever pivoting on the carriage and linked to the first unit.
Claim 4
Dependent Claim
18 words
Equipment as in claim 1, the first means being follower operated upon active operation of the second means.
Claim 5
Dependent Claim
38 words
Equipment as in claim 3, the firSt means including plural lever means interconnected and connected to the units for unfolding the units and aligning them in the initial phases of protracting and lowering the system as a whole.
Claim 6
Dependent Claim
28 words
Equipment as in claim 4, the first means including at least one control lever on the carriage for operating the lever means during lowering by the second means.
Claim 7
Dependent Claim
64 words
Equipment as in claim 5, the second means including at least one pivot arm pivotally linked to the first unit and holding the first unit on the carriage, parallel to the particular pallet, when the system if folded, the pivot arm moving the first unit off the carriage for unfolding whereby the control lever and the lever means pivot the second unit by 180*.
Claim 8
Dependent Claim
15 words
Equipment as in claim 5, the control lever provided with a slot for length compensation.
Claim 9
Dependent Claim
25 words
Equipment as in claim 1, the units of the plurality provided with a common drive and transmission means for linking elements to the common drive.
Claim 10
Dependent Claim
41 words
Equipment as in claim 8 wherein the first and second units have a common folding and hinging axis, the transmission means using the hinging axis for transmitting motion from one of the first and second units to the respective other one.
References Cited (Backward Citations)
US2812867A
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US3282456A
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US3356236A
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US3381921A
Cited
US3521767A
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US3478904A
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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) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |