Redundant layer for inflatable evacuation component
First Claim
1. An inflatable component of an aircraft evacuation assembly, the inflatable component comprising:
- a first inflatable bladder defining a first fluid chamber;
a second inflatable bladder defining a second fluid chamber, wherein the second inflatable bladder circumscribes the first inflatable bladder such that the first inflatable bladder is disposed in the second fluid chamber;
an inlet valve coupled to the first inflatable bladder and the second inflatable bladder, wherein the inlet valve is configured to deliver fluid to the first fluid chamber; and
a pressure relief valve coupled to the first inflatable bladder, wherein fluid communication between the first fluid chamber and the second fluid chamber is via the pressure relief valve;
wherein the first inflatable bladder is coupled to the second inflatable bladder exclusively via the inlet valve.
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Accused Products
Abstract
The inflatable component includes, according to various embodiments, a first inflatable bladder defining a first fluid chamber and a second inflatable bladder defining a second fluid chamber. The second inflatable bladder may circumscribe the first inflatable bladder such that the first inflatable bladder is disposed in the second fluid chamber. The inflatable component also includes, according to various embodiments, an inlet valve coupled to the first inflatable bladder and the second inflatable bladder, wherein the inlet valve is configured to deliver fluid to the first fluid chamber. In various embodiments, the inflatable component also includes a pressure relief valve coupled to the first inflatable bladder, wherein fluid communication between the first fluid chamber and the second fluid chamber is via the pressure relief valve.
29 Citations
17 Claims
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1. An inflatable component of an aircraft evacuation assembly, the inflatable component comprising:
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a first inflatable bladder defining a first fluid chamber; a second inflatable bladder defining a second fluid chamber, wherein the second inflatable bladder circumscribes the first inflatable bladder such that the first inflatable bladder is disposed in the second fluid chamber; an inlet valve coupled to the first inflatable bladder and the second inflatable bladder, wherein the inlet valve is configured to deliver fluid to the first fluid chamber; and a pressure relief valve coupled to the first inflatable bladder, wherein fluid communication between the first fluid chamber and the second fluid chamber is via the pressure relief valve; wherein the first inflatable bladder is coupled to the second inflatable bladder exclusively via the inlet valve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An aircraft evacuation assembly comprising:
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a packboard; a fluid storage tank mounted to the packboard; a slide-raft inflatable comprising; a first inflatable bladder defining a first fluid chamber; a second inflatable bladder defining a second fluid chamber, wherein the second inflatable bladder circumscribes the first inflatable bladder such that the first inflatable bladder is disposed in the second fluid chamber; an inlet valve coupled to the first inflatable bladder and the second inflatable bladder, wherein the inlet valve is coupled in fluid receiving communication with the fluid storage tank to deliver a fluid from the fluid storage tank to the first fluid chamber; and a pressure relief valve coupled to the first inflatable bladder, wherein fluid communication between the first fluid chamber and the second fluid chamber is via the pressure relief valve; wherein the first inflatable bladder is coupled only indirectly to the second inflatable bladder, and such indirect coupling is via the inlet valve. - View Dependent Claims (14)
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15. A method of deploying a slide-raft inflatable of an aircraft evacuation assembly, the method comprising:
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inflating a first inflatable bladder by actuating an inlet valve to deliver fluid into a first fluid chamber of the first inflatable bladder of the slide-raft inflatable; and in response to a fluid pressure in the first fluid chamber reaching a predetermined pressure, inflating a second inflatable bladder by delivering fluid from the first fluid chamber of the first inflatable bladder to a second fluid chamber of the second inflatable bladder of the slide-raft inflatable, wherein the second inflatable bladder circumscribes the first inflatable bladder such that the first inflatable bladder is disposed in the second fluid chamber; wherein in response to inflating the first inflatable bladder and inflating the second inflatable bladder, the first inflatable bladder is free from direct contact with the second inflatable bladder. - View Dependent Claims (16, 17)
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Specification