Patent ID: 6129313
Filing Date: 2000-10-10
Classification: B64D

Abstract:
A device for protection of a spinal column of a pilot during an ejection shock, comprising:an ejectable seat with a seat back having tensioners integrated therein, a rigid framework and a buttock support, said tensioners being activated by a microprocessor initiating the ejection procedure, action of said tensioners being limited in time and said tensioners relieving a lumbar/abdominal region of a body of a pilot by placing an upper part of a pilot's chest under controlled forces in the direction of an ejection thrust, said forces being directed from a bottom portion toward a top portion of the seat and providing controlled lowering of the buttock support in the opposite direction; andto prevent concentration of the weight of the upper portion of the body on the lumbar/abdominal region, the buttock support is lowered through use of an electromagnetic arrangement retracting connection elements between the seat back and the rigid framework;whereby the inertia of the ejected mass being substantially reduced suppressing risk of a spinal column trauma.