Rtx Corporation

Pedro D Laureano

Bryan P Dube

Edwin Otero

Jeffrey Michael Jacques

Emma J Place

Mohamed Hassan

William R Hackbarth, Ii

Raghib A Chowdhury

Andrew Correia

Bernard Joseph Reilly, Iii

A piston seal ring including a body shaped as an annular ring having an inner diameter and an outer diameter; an end gap formed in the body; a first interface surface formed on the body between the inner diameter and the outer diameter; a second interface surface orthogonally adjacent the first interface surface; and a receiver extending from the first interface surface substantially opposite the end gap, the receiver including a cavity configured to support a lug.

Aircraft piston seal ring including anti-rotation provisions

An attachment root for a blade includes a symmetric serration profile with multiple lobes. Contact surfaces of each lobe form equal contact angles with a line normal to a symmetry plane of the serration profile. Non-contact surfaces of lobes form angles greater than three degrees relative to the line that increase in a radially inward direction.

Turbine airfoil attachment with serration profile

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Jacksonville, FL, United States of America

Pedro D Laureano