05647357 is referenced by 253 patents and cites 8 patents.

An improved flexible respiratory mask facial seal, as well a respiratory mask incorporating such seal. The facial seal comprises an annular member including a peripheral sidewall bounded by an inner end and an outer end generally opposite the inner end. The inner end is adapted for attachment to the shell or body portion of a respiratory mask and the outer end defines a contoured sealing surface adapted for confronting sealing engagement with a user's face. The annular member is formed of a gel substance possessing resilience characteristics corresponding to those of human fat tissue. Preferably, the annular member is encapsulated in a thin, pliable, membranous covering to enhance the durability and washability of the facial seal. Because the facial seal simulates the resiliency of human fat tissue, the user experiences the sensation of a natural substance against his skin when the mask is donned.

Title
Respiratory mask facial seal
Application Number
8/525404
Publication Number
5647357
Application Date
September 8, 1995
Publication Date
July 15, 1997
Inventor
Eugene N Scarberry
Trafford
PA, US
Kristine K Sabo
New Kensington
PA, US
Patrick M Handke
Monroeville
PA, US
Shari S Barnett
Pittsburgh
PA, US
Agent
Reed Smith Shaw & McClay
Assignee
Respironics
PA, US
IPC
A62B 18/08
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