Patent ID: 8113467
Filing Date: 2012-02-14
Classification: B64D,F16K,Y10T

Abstract:
1. An aircraft venting tank structure comprising a surge tank having a stack pipe unit associated therewith, wherein the stack pipe unit comprises a lower portion and an upper portion, and the stack pipe unit houses a frangible overpressure protector element, the frangible overpressure protector element being arranged, during use, to inhibit fluid flow through the stack pipe unit, but to fail in response to an excessive pressure differential, and wherein the stack pipe unit is arranged to have (i) a fitted configuration in which the lower portion is attached to the surge tank and extends upwardly from a panel section defining part of the underside of the surge tank, and the lower and upper portions are coupled to each other and (ii) a frangible element-replacement configuration in which the upper portion is connected to the venting tank structure and the lower portion is de-coupled from the upper portion, such that the frangible overpressure protector element can be replaced without removal of the upper portion from the venting tank structure.