Patent ID: 9718531
Date: 2017-08-01
CPC Classifications: B64C,B64D

Claim:
1. A drain for expelling fluids from an interior of an aircraft to an exterior of the aircraft, the drain comprising: a drain tube disposed at the interior of the aircraft having a first end disposed in fluid communication with an aircraft equipment to be drained and an opposite second end, wherein the drain tube terminates at the second end at a location within the interior of the aircraft; a seal which extends between the second end of the drain tube and an inner side of an outer skin of the aircraft, delimiting a drainage cavity; and a perforation in the outer skin that extends from the cavity through the outer skin to the exterior of the aircraft; wherein: fluid from the drain tube enters the drainage cavity and passes directly from the drainage cavity, through the perforation in the outer skin to the exterior of the aircraft; and the seal sealingly surrounds a portion of the inner side of the outer skin through which the perforation extends.