EP 0600258 B1 19960619 - Breathing mask with solid body
Title (en)
Breathing mask with solid body
Title (de)
Atemschutzmaske mit festem Maskenkörper
Title (fr)
Masque respiratoire à corps solide
Publication
Application
Priority
DE 4240626 A 19921203
Abstract (en)
[origin: US5454369A] A breathing mask with a fixed, curved mask body and with a mask edge extending around the mask body and adapted to the shape of the face for attaching a sealing edge sealing the mask body against the face and with a supply opening located in the mouth area of the mask body. The mask body provides low-distortion vision along with the largest possible useful field of vision. To accomplish this task, the curvature in azimuthal section planes (5, 6, 7) of the mask body (1) is designed to decrease continuously in the corresponding section plane toward the mask edge (2), starting from a meridian symmetry axis (4) of the mask body; that the azimuthal curvature on the meridian symmetry axis (4) also decreases monotonically, starting from the mouth area (8); and that the meridian curvature of the mask body 1 along the symmetry axis (4) is essentially uniform.
IPC 1-7
IPC 8 full level
A62B 18/08 (2006.01)
CPC (source: EP US)
A62B 18/08 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
DE 4240626 C1 19940324; DE 59303014 D1 19960725; EP 0600258 A1 19940608; EP 0600258 B1 19960619; US 5454369 A 19951003
DOCDB simple family (application)
DE 4240626 A 19921203; DE 59303014 T 19931106; EP 93118023 A 19931106; US 15793393 A 19931124