Breathing mask with individual adaptation to the shape of the face
AssigneeDragerwerk Aktiengesellschaft
InventorsJörg-Uwe Meyer, Götz Kullik, Cornelia Schrader, Hans-Ullrich Hansmann
Life of this patent
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Abstract
A sealing frame for a breathing mask is provided that can be adapted to the contours of the face of a mask user in a simple manner. The sealing frame (1), includes a soft plastic material (5) with embedded metal strips (6).
Claims14
A process for adapting a sealing frame of a breathing mask to the shape of a face, the process comprising the steps of:
- detecting the contours of the face of the mask user with a distance-measuring device;
- making the sealing frame of a plastically deformable material;
- providing an embossing device with a plurality of stamps for deforming the sealing frame;
- and
- deflecting the stamps on the basis of the distance values determined in the area in which the sealing frame is in contact with the face of the mask user such that the sealing frame corresponds to a negative mold of the contours of the face, wherein:
- the breathing mask is formed of a plastic mask body, said plastically deformable sealing frame and a sealing lip;
- said plastically deformable sealing frame is formed of a soft plastic material with embedded metal strips;
- said sealing lip is formed of plastic material arranged on a side of said sealing frame facing the user of the mask;
- said sealing frame is annular and connected to said mask body;
- and
- said plastically deformable sealing frame has a plastic material thickness greater than a thickness of said mask body and greater than a thickness of said sealing lip.
A process for adapting a sealing frame of a breathing mask to the shape of a face, the process comprising the steps of:
- detecting the contours of the face of the mask user with a distance-measuring device;
- making the sealing frame of a plastically deformable material;
- providing an embossing device with a plurality of stamps for deforming the sealing frame;
- and
- deflecting the stamps on the basis of the distance values determined in the area in which the sealing frame is in contact with the face of the mask user such that the sealing frame corresponds to a negative mold of the contours of the face, wherein:
- the breathing mask is formed of a plastic mask body, said plastically deformable sealing frame and a sealing lip;
- said plastically deformable sealing frame is formed of a plastic material and a reinforcing structure that is at least initially deformable and provides rigidity during use;
- said sealing lip is formed of plastic material arranged on a side of said sealing frame facing the user of the mask;
- and
- said sealing frame is annular and connected to said mask body.
A process for adapting a sealing frame of a breathing mask to the shape of a face of a breathing mask user, the process comprising the steps of:
- making the sealing frame of a plastically deformable material with a polyester fabric as a sealing frame carrier, said polyester fabric being impregnated with polyurethane resin, which is water activatable;
- providing a mask body of soft plastic material;
- providing a sealing lip of plastic material arranged on a user facing side of the sealing frame;
- connecting the sealing frame with the mask body of the soft plastic material;
- sealing the breathing mask, including the sealing frame together with the mask body and the sealing lip, in an airtight package film;
- opening said airtight package film;
- removing the breathing mask from the package film;
- applying water to the sealing frame after opening said airtight package film;
- and
- applying said sealing frame to the face of the breathing mask user after applying said water to said sealing frame such that said sealing frame is molded to a contour of the face of the breathing mask user to cure said sealing frame for maintaining said contour of the face of the breathing mask user after said sealing frame is applied to the face of the breathing mask user.
Dependencies are inferred from the claim text.