DE2603530A1 - RESPIRATORY DEVICE - Google Patents

Description

DIPL.-INQ. DIETER JANDER DR.-INQ. MANFRED BÖNINQ PATENT LAWYERS Delivery address

reply to:

KOlBERGER STRASSE 21 A “KURFÜRSTENDAMM MUNICH 80 (BOGENH AU S EN) W ^ ,, "" ",.

I StHLIn Telephone: O89 / 98 27 04 _{Te | efon; o3 () / 8 83 go 7} , _{/ 72}

Telegrams: Consideration Berlin

818/15 675 EN

Patent application

of the company
AUERGESELLSCHAFT GMBH.

Berlin 65
Friedrich-Krause-Ufer 24-

"Breathing apparatus"

The invention relates to a respirator with a cartridge with a CC ^ and moisture binding and an oxygen-releasing chemical and a device for indicating the depletion of the chemical.

709831/0128 ² "

Postal check account Berlin Wesl account 1743 84-100 Berliner Bank AG-. Account O! 10921900

DIPL-INC /. DIETER JANDER DR.INQ. MANFRED BONINQ 2603530

PATENT LAWYERS

-if -

It is known to provide a bell as a device for indicating exhaustion which rings after a certain operating time. This solution detects the exhaustion of the chemical
not optimal, as the possible usage time can fluctuate.

It is also known to provide electrodes in the cartridge, over which the conductivity of the chemical, which is during the use changes, is recorded. This requires intervention in the cartridge, which is perceived as a disadvantage.

The invention is based on the object of improving the device mentioned at the outset in such a way that the cartridge remains untouched and the exhaustion indicator always with one
very specific degree of exhaustion takes place.

This object is achieved on the one hand in that one and / or the other breathing line leading to the cartridge is also included
is connected to a pressure detection device.

The possibility of defining the flow resistance of the chemical during the operating time is used here
to increase.

On the other hand, the above object is also achieved according to the invention in that one or the other of the cartridge
leading breathing line a device for recording the amount
the inhalation and / or exhalation air flowing through the cartridge
lies.

This takes advantage of the fact that a cartridge is a
has a very specific capacity.

The display device according to the invention for both solutions is for pendulum breathing apparatus and circuit breathing apparatus
applicable.

709831/0128 _ ₃ _

DIPL-INO- DIETER JANDER DR.-INQ. MANFRED BONINO PATENT LAWYERS

- r-

The display device can indicate acoustically and / or optically. In the case of a visual display, we recommend a device with a Scale that has different color ranges.

Further details of the invention emerge from the drawing, in which FIGS. 1 to 3 show three exemplary embodiments of the invention are shown.

In FIGS. 1 and 2, 1 is a chemical cartridge, and 2 a breathing bag and with 5 a breathing tube of a pendulum breathing apparatus designated.

In the case of FIG. 1, the display device is a printing device 4a, which responds to the positive pressure of the exhaled air or to the negative pressure of the inhaled air or to both.

In the case of Fig. 2, the display device is a whistle 4b, which responds at a certain pressure (see pressure relief valve 5).

Fig. 3 shows schematically a rebreather consisting from a chemical cartridge 1, a breathing bag 2 and connecting lines 6. The direction of flow of the breathing air is indicated by arrows. In the breathing tube there is a display device 7 which shows the amount of exhaled air.

- 4 709831/0128

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Claims (3)

DIPL-INQ. DIETER JANDER DR.INQ. MANFRED BDNINQ 2 6 O 3 5 "} G PATENT LAWYERS PATENT LAWYERS Patent claims: Respirator with a cartridge with a COo and Moisture-binding and oxygen-releasing chemical and a device for displaying the exhaustion of the Chemicals, characterized in that one and / or the other leading to the cartridge (1) Breathing line (3) with a pressure recording device (4-a, 4-b) connected is. 2. Respirator with a cartridge with a COp and Moisture-binding and oxygen-releasing chemical and a device to display the exhaustion of the Chemicals, characterized in that in one or the other breathing line leading to the cartridge (1) (6) a device (7) for detecting the amount of the inhaled and / or exhaled air flowing through the cartridge (1) is located. 3. Breathing apparatus according to claim 1, characterized in that the pressure sensing device (4-b) has a There is a pipe with a pressure relief valve (5) that is connected to both lines. 709831/0128 ORIGINAL liMöi-cw ι c \)