05349949 is referenced by 190 patents and cites 8 patents.

The equipment, for use by a pilot, is intended to provide the wearer with breathing gas under a pressure greater than ambient pressure. It comprises a mask having a rigid shell provided with fastening straps for holding the mask on the head, with a coupling for feeding breathing gas under pressure, and with a face cover of elastomer material terminated by an internal sealing lip for pressing against the face. The lip is connected to a front portion of the face cover that is secured to the shell by at least one thin deformable fold. Resilient elements are provided along the fold to exert a force that varies little with the amount of deformation and press the lip against the face.

Title
Face mask with lip, fold, and resilient spring means to improve seal
Application Number
7/955157
Publication Number
5349949
Application Date
October 1, 1992
Publication Date
September 27, 1994
Inventor
Robert Schegerin
Jouy En Josas
FR
Agent
Larson and Taylor
Assignee
Intertechnique
FR
IPC
A62B 17/04
A62B 18/08
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