Patent ID: 7934501
Filing Date: 2011-05-03
Classification: A61M

Abstract:
1. A vent elbow comprising: a generally L-shaped main body having a frame engaging portion and a base portion; a conduit pathway to deliver an incoming gas flow stream from the base portion towards the frame engaging portion; a vent pathway to allow an outgoing gas flow stream to flow from the frame engaging portion towards a vent formed in the main body, the vent pathway being part annular; and a cylindrical portion extending from the frame engaging portion; and a baffle provided to the main body to separate and at least partly define the conduit pathway and the vent pathway, wherein the baffle includes a lip portion extending beyond the cylindrical portion, the lip portion having a first surface facing towards an axis of the cylindrical portion and a second surface facing away from the axis of the cylindrical portion, wherein at least a portion of the baffle is part cylindrical and has an axis that is generally concentric with the axis of the cylindrical portion, and the first surface of the lip portion, in cross-section, includes a curved portion that curves away from or towards the axis of the cylindrical portion in a direction along the axis of the cylindrical portion.