Patent ID: 8931484
Filing Date: 2015-01-13
Classification: A61M,B29C,B29L

Abstract:
1. A sealing lip device for a breathing mask, the sealing lip device comprising: a receiving opening for receiving at least a nose tip region of a mask wearer, and a sealing lip which is formed from an elastomeric material and which surrounds the receiving opening and which is configured to cross a bridge of a nose of the mask wearer and which has a contact zone provided for bearing against a face of the mask wearer when the breathing mask engages the face of the mask wearer, wherein the sealing lip is elastically and yieldingly arranged in such a way that a first sealing lip zone has a higher degree of flexibility than a second sealing lip zone, the first sealing lip zone being configured to seal a region of the bridge of the nose and the second sealing lip zone being opposite the first sealing lip zone, and wherein the sealing lip device further includes a bellows structure that suspends the sealing lip, the bellows structure including an inwardly projecting portion that extends toward an interior of the breathing mask and terminates at a vertex, an elastomeric portion of the inwardly projecting portion having an elastomeric wall with a variable wall thickness, the inwardly projecting portion having an inwardly projecting indentation in the elastomeric wall which provides the variable wall thickness.