Patent ID: 8128353

Claim:
A casing in which distortion is controlled, the casing comprising: an upper casing half having first and second upper split-line flanges extending from the upper casing half, a lower casing half having first and second lower split-line flanges extending from the lower casing half, the first and second upper split-line flanges being joined to the first and second lower split-line flanges, respectively, to thereby join the upper and lower casing halves to one another to form the casing, and a plurality of false flanges extending from the upper and lower casing halves, each of the plurality of false flanges including a split in the false flange's inner diameter so as to allow the casing's hoop stiffness to be adjusted to match the split-line flanges' hoop stiffness and the radius of the load path of the split-line flanges.