Patent 8240985 was granted and assigned to Pratt & Whitney Canada on August, 2012 by the United States Patent and Trademark Office.
The gas turbine engine shroud comprises a plurality of circumferentially-disposed and concentric shroud segments. Each shroud segment has an arc-shaped platform with opposite ends, each end comprising an inter-segment seal slot, at least one slot extending substantially across each corresponding end and having a lengthwise-variable depth.