Patent ID: 9309003
Filing Date: 2016-04-12
CPC Classification: B64C,B64D,E06B,Y02T

Claim Text:
1. An access door assembly configured to seal an interior of a helicopter fuel tank from areas external to the fuel tank, the access door assembly comprising: a door; a ring; a radial seal that extends substantially around a circumference of the access door assembly to form an air and fuel tight seal between the door and the ring; a first component configured to absorb stresses acting on the access door assembly from the interior of the helicopter fuel tank; and a second component configured to absorb stresses acting on the access door assembly from the external areas, wherein the second component is at least one retaining strip coupled to a release mechanism, wherein each of the at least one retaining strips is flexible and is configured to be received within a channel of the door or the ring.