Patent ID: 9279531
Filing Date: 2016-03-08
CPC Classification: F01D,F02C,F05D,F16L,Y10T

Claim Text:
1. A duct comprising: a first non-metallic member having an exposed exterior surface extending between a first end and a second end, at least at the first end having an outwardly-projecting flange portion; a metallic flange member having a sleeve extending between a first end and a second end and a flange extending outward from the sleeve and having a first face and a second face; and a second non-metallic member extending between a first end and a second end having an outwardly-projecting flange portion, the first non-metallic member flange portion mounted to the flange first face and the second non-metallic member flange portion mounted to the flange second face, wherein: