Patent ID: 7566201

Claim:
A seal plate assembly in a rotor disc for a turbine engine, the seal plate assembly comprising: an annular groove including an annular inner surface provided in said disc, said inner surface facing radially outwardly; an annular outer surface extending axially in facing relationship to said inner surface; a plate structure adapted to be disposed and supported between said inner and outer surfaces, said plate structure including an inner edge, facing radially inwardly and disposed adjacent said inner surface and an outer edge disposed adjacent said outer surface, said plate structure further including an outwardly facing surface and an opposite inwardly facing surface; a slot formed in the plate structure, said slot comprising an L-shaped recess in said plate structure and including a radial portion extending radially upwardly from said inner edge toward said outer edge and an axial portion extending axially inwardly from said outwardly facing surface, said axial portion extending axially inwardly beyond said radial portion and radially upwardly from said inner edge; and a lock structure including a radial leg and an axial leg extending perpendicular to said radial leg to define an L-shaped body, said lock structure adapted to be located in an installation position with said radial leg fitting within said radial portion of said slot and with said axial leg fitting within said axial portion of said slot, and said lock structure adapted to be moved to a lock position at a location disengaged from said slot such that said lock structure is disposed and located with said radial leg engaging said outwardly facing surface of said plate structure and said axial leg engaging said inner edge of said plate structure and filling a space between said inner edge of said plate structure and said inner surface of said groove to lock said plate structure in a predetermined position extending between said inner and outer surfaces.