US3633853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Escape devices for aircraft
Assignee: BAC AND BRITISH AEROSPACE
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Filing: 1970-07-01
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Granted: 1972-01-11
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Expires: 1990-07-01
Abstract
Abstract An aircraft having an external door carried by a parallel linkage includes an escape slide stowed in a container secured to a carriage which is movable relatively to the door on a support also carried by the parallel linkage, the carriage being so constrained that, as the door opens, the carriage moves through the door opening and then to one side.
Inventors
- 👤 Roy T J Collins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:15
CPC Classifications
B; B64; B64D; B64D25/00; B64D25/08; B64D25/14
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
164 words
An aircraft including an external door carried by a parallel linkage, whereby the door can move bodily relatively to a door aperture, outwards and to one side from closed position to open position, and vice versa, a support also carried by the parallel linkage, a carriage movable on the support, a container secured to the carriage, an escape slide stowed within the container and having an end with means for detachable anchorage adjacent to the sill of the door aperture, and means constraining the carriage relatively to the door, whereby when the door is closed the container lies adjacent to the interior of the door, and during the first part of each opening movement of the door the carriage is so shifted on the support that the container remains in register with the door aperture as it moves through the aperture, and during a second part of each opening movement of the door the carriage is shifted in a reverse direction on the support.
Claim 2
Dependent Claim
164 words
An aircraft including an external door carried by a parallel linkage, whereby the door can move bodily relatively to a door aperture, outwards and to one side from closed position to open position, and vice versa, a support also carried by the parallel linkage, a carriage movable on the support, a container secured to the carriage, an escape slide stowed within the container and having an end with means for detachable anchorage adjacent to the sill of the door aperture, and means constraining the carriage relatively to the door, whereby when the door is closed the container lies adjacent to the interior of the door, and during the first part of each opening movement of the door the carriage is so shifted on the support that the container remains in register with the door aperture as it moves through the aperture, and during a second part of each opening movement of the door the carriage is shifted in a reverse direction on the support.
Claim 3
Dependent Claim
53 words
An aircraft according to claim 1, wherein the door is connected to the parallel linkage by a bracket, and the support consists of two parallel shafts fixed to the bracket, the carriage including a sleeve sliding on one of the shafts and a guide roller riding on a track on the other shaft.
Claim 4
Dependent Claim
41 words
An aircraft according to claim 2, wherein the means constraining the carriage includes a cam track pivoted on the bracket, engaged by a cam roller carried by the parallel linkage, there being a link between the cam track and the carriage.
Claim 5
Dependent Claim
65 words
An aircraft according to claim 1, wherein the container is secured to the carriage by a releasable attachment, there is automatic means for releasing the attachment when the door is opened, provided the end of the slide is anchored adjacent to the sill, and there is means for causing the container to open and release the slide upon release of the container from the carriage.
Claim 6
Dependent Claim
37 words
An aircraft according to claim 1, wherein the escape slide is inflatable, and including a compressed gas supply connected to the escape slide through automatic means responsive to the release of the escape slide from the container.
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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |