Negative lift evacuation slide
First Claim
Patent Images
1. An evacuation assembly of an aircraft, the evacuation assembly comprising:
- an evacuation slide being shaped and configured to produce negative lift in response to air flowing across the evacuation slide in a width direction, wherein the width direction is perpendicular to a longitudinal axis of the evacuation slide;
wherein;
the evacuation slide comprises a head portion, a toe portion, a top surface, and a bottom surface;
the longitudinal axis extends centrally along a length of the evacuation slide from the head portion to the toe portion;
a top perimetrical length of the top surface of the toe portion of the evacuation slide in the width direction is less than a bottom perimetrical length of the bottom surface of the toe portion of the evacuation slide in the width direction;
the top perimetrical length is defines as a top length of a top air flow path across the top surface of the toe portion of the evacuation slide in the width direction;
the bottom perimetrical length is defined as a bottom length of a bottom air flow path across the bottom surface of the toe portion of the evacuation slide in the width direction; and
a longitudinally extending support tube having an airfoil cross-sectional shape.
1 Assignment
0 Petitions
Accused Products
Abstract
The evacuation assembly may include an evacuation slide having a head portion, a toe portion, a longitudinal axis, a top surface, and a bottom surface. In various embodiments, the longitudinal axis extends centrally along a length of the evacuation slide from the head portion to the toe portion. In various embodiments, a top perimetrical length of the top surface of the toe portion of the evacuation slide in a width direction that is perpendicular to the longitudinal axis is less than a bottom perimetrical length of the bottom surface of the toe portion of the evacuation slide in the width direction.
-
Citations
18 Claims
-
1. An evacuation assembly of an aircraft, the evacuation assembly comprising:
-
an evacuation slide being shaped and configured to produce negative lift in response to air flowing across the evacuation slide in a width direction, wherein the width direction is perpendicular to a longitudinal axis of the evacuation slide; wherein; the evacuation slide comprises a head portion, a toe portion, a top surface, and a bottom surface; the longitudinal axis extends centrally along a length of the evacuation slide from the head portion to the toe portion; a top perimetrical length of the top surface of the toe portion of the evacuation slide in the width direction is less than a bottom perimetrical length of the bottom surface of the toe portion of the evacuation slide in the width direction; the top perimetrical length is defines as a top length of a top air flow path across the top surface of the toe portion of the evacuation slide in the width direction; the bottom perimetrical length is defined as a bottom length of a bottom air flow path across the bottom surface of the toe portion of the evacuation slide in the width direction; and a longitudinally extending support tube having an airfoil cross-sectional shape. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
-
-
18. An evacuation assembly of an aircraft, the evacuation assembly comprising:
-
an inflatable evacuation slide comprising a longitudinally extending support tube having an airfoil cross-sectional shape, two longitudinally extending border support tubes, a head portion, a toe portion, a longitudinal axis, a top surface, and a bottom surface, wherein the longitudinal axis extends centrally along a length of the evacuation slide from the head portion to the toe portion, wherein a top perimetrical length of the top surface of the toe portion of the inflatable evacuation slide in a width direction that is perpendicular to the longitudinal axis is less than a bottom perimetrical length of the bottom surface of the toe portion of the inflatable evacuation slide in the width direction; a sliding surface coupled to the longitudinally extending support tube and the two longitudinally extending border support tubes, wherein the two longitudinally extending border support tubes extend parallel to the longitudinal axis and wherein the sliding surface forms at least a portion of the top surface of at least the toe portion of the inflatable evacuation slide; and a sheet coupled to the longitudinally extending support tube and the two longitudinally extending border support tubes, wherein the sheet forms at least a portion of the bottom surface of at least the toe portion of the inflatable evacuation slide.
-
Specification