Patent ID: 7731127
Filing Date: 2010-06-08
Classification: B64C,F16L

Abstract:
1. A drain-mast connection for an aircraft having a fuselage with an exterior surface and an opening in the fuselage, the connection comprising: an interface pipe including an integrally formed straight pipe piece substantially extending inside the fuselage of the aircraft, the straight pipe piece having a front third portion having an integrally formed nipple-like end portion extending from the straight pipe piece through the fuselage of the aircraft, the nipple-like end portion of the front third portion projecting beyond the exterior surface of the fuselage through the opening in the fuselage, and having on a second end of the interface pipe, opposite the first end of the interface pipe, a tapered opening, such that the interface pipe is a single piece fluidically coupling the tapered opening of the second end, projecting into the fuselage of the aircraft, to an outlet of the nipple-like end portion, projecting out of the fuselage; a drain-mast pipe having a first end, the first end having an inner diameter wider than an inner diameter of the drain mast pipe adjacent to the first end such that the first end of the drain-mast pipe is positioned over the nipple-like end portion of the interface pipe, forming a coupling with the nipple-like end portion of the interface pipe, when the nipple-like end portion is inserted into the first end of the drain-mast pipe; and the interface pipe includes a connection flange directly connected with an outer wall of the front third portion of the straight pipe piece and extending from the outer wall of the front third portion, such that the interface pipe is a single piece mechanically coupling the interface pipe to a mounting plate via the flange of the interface pipe such that the interface pipe is sealably coupled at the opening in the fuselage of the aircraft using the connection flange.