Patent ID: 8172565
Filing Date: 2012-05-08
Classification: F23G

Abstract:
1. A stack bustle for use in a gas exhaust system having an exhaust stack, the stack bustle comprising: a circumferential piping section co-extensive with the exhaust stack, the circumferential piping section including an outer wall and an inner wall, the volume between the outer wall and the inner wall defining a flow corridor; an orifice disposed within the outer wall of the circumferential piping section, the orifice adapted to be connected to a gas transfer pipe for transferring gas from the circumferential piping section; and a slot disposed within the inner wall of the circumferential piping section, the slot forming a fluid passageway between the exhaust stack and the flow corridor, wherein the flow corridor varies in cross-sectional area circumferentially around the exhaust stack and the cross-sectional area of the flow corridor is widest proximate the orifice.