Respiratory apparatus for compressed-air breathing equipment
1 Assignment
0 Petitions
Accused Products
Abstract
A oxygen system includes a casing (1) that houses a valve seat (4) with an air inlet duct (6) arranged in axial direction, a shutting part (7) associated with the air inlet duct at the valve outlet, and a driving motor (8). A pressure sensor (15) for measuring the pressure in the respective phase of breathing is located in a measuring chamber (2) connecting the air inlet duct and the air outlet duct (3) that is formed in the casing and can be connected to a respirator mask. The pressure conditions prevailing during inhalation and exhalation control the drive motor that is connected by a controller to the shutting part of the valve unit, and regulate the air supply to the respirator mask. In addition to the air control that exactly matches respiration, the device is small and compact, requires few mechanical components, and is resistant to impact stress.
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Citations
24 Claims
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1-12. -12. (canceled)
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13. In a regulator for a compressed air-breathing apparatus having a respiration-controlled valve unit housed in a casing for controlling a supply of air to a respirator mask, the improvement wherein the valve unit comprises:
- a valve seat;
an air inlet duct; and
a shutting part operated by a driving motor and wherein a pressure sensor is located in a measuring chamber and is electrically-connected to the driving motor via a controller for controlling the supply of air via a controller for controlling the supply of air based on a measured pressure in a measuring chamber; and
wherein the measuring chamber connects the air inlet duct and an air outlet duct formed in the casing that is connected to the respirator mask. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
- a valve seat;
Specification