Patent ID: 8425194

Claim:
A seal comprising: an arched beam configured to extend through a bottom portion of a rotor dovetail, the arched beam having a forward end, an aft end and a middle portion, the forward end configured to be disposed near a forward axial surface of a rotor wheel, and the aft end configured to be disposed near an aft axial surface of the rotor wheel; sealing members comprising a forward sealing member and an aft sealing member, the arched beam coupled to both the forward sealing member and the aft sealing member, the sealing members including radial sealing surfaces configured to contact a projection on a bucket dovetail, and wherein at least one of the sealing members is disposed to cover substantially a majority of an axial surface of a dovetail joint formed between the rotor dovetail and a bucket dovetail; and wherein, the arched beam is configured to apply tension to the sealing members, and the seal is configured to reduce flow leakage into and out of the rotor dovetail in the rotor wheel.