Dragerwerk Aktiengesellschaft

Rudiger Muller

Manfred Gdulla

Thomas Neuber

Hartmut Kintzel

A combination of a first breathing connection of a gas mask with an insert which can be inserted into the breathing connection for connecting filters to the gas mask is to be improved in terms of the simple manufacture of country-specific variants of gas masks. The insert has a first marking field belonging to a first fastening means on a surface located outside the breathing connection.

Valved filter connection piece for a gas mask

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.

Breathing mask with fixed mask body

A breathing mask (1) with a chamber housing fastened in the mask body (2) for accommodating at least one breathing connection (4), an exhalation valve (6), and a speaking diaphragm are improved such that the chamber housing can be replaced in a simple manner. The circumferential surface of the chamber housing is provided with a plug-type connection piece (35), the mask body (2) has a support with a shape corresponding to the plug-type connection piece (35), and the plug-type connection piece (35) and the support are detachably connected via a locking member (40).

Growing community of inventors

Lubeck, Germany

Rudiger Muller