CS240205B1 - Wind Blower - Google Patents

Abstract

Breathing booster for a protective mask, inserted between the protective mask and the filter, which solves the problem of creating excess pressure in the space under the mask and thus tolerability during long-term wearing. The essence is a flexible, membrane container, closed on both sides by front lids, with a valve fitting and inserted into a bellows. The lids are equipped with straps, with which the breathing booster is attached both to the lower limb and to a relatively immobile point of the torso. The breathing booster can be used both in industry, civil defense of the population, and for military purposes.

Description

BACKGROUND OF THE INVENTION The present invention relates to a breathing apparatus for a protective mask, which solves the formation of an overpressure in the space below the mask and hence compatibility with long-term wear. /.

Breathing and exhale-controlled filtering protective masks have tended to reduce respiratory resistance and harmful space as negative factors that lead to great respiratory muscle strain and compromise inhaled air composition. On the other hand, by limiting resistors, the design of efficient filters is limited. The problem was solved by forced air supply, for example by means of a battery-powered electric fan. However, this did not solve the problem, since the applicability of such a device on a mass scale during the war is negligible

This drawback is remedied by a breathing booster according to the invention, which is based on a flexible, diaphragm vessel, closed from both sides by valve lid end caps, inserted into a bellows and attached by a strap fastened to one end cap to the limb of the person carrying the breath booster and the other on the opposite front cover to a relatively stationary point on the hull. The unit is inserted between the filter and the mask ..........

Powered by the movement of the lower or upper limb, it creates a positive pressure in the mask, flushes the harmful area of the protective mask, and allows excess air to be used to ventilate it when wearing protective clothing. This greatly improves the wear resistance of the protective mask and allows for more efficient filters with higher resistance to be introduced;

BRIEF DESCRIPTION OF THE DRAWINGS In the accompanying drawings, an exemplary embodiment and attachment of a breathing booster according to the invention is shown, in which FIG. 2 schematically illustrates the attachment and wear on the body.

The flexible, diaphragm vessel 1 (Fig. 1) is closed by a front cover 2 provided with a suction chamber 4 with a valve 5 and a front cover 3 provided with a discharge chamber S with a valve 7 and inserted into a protective bellows 8. The front cover 2 is provided with a hinge 9 , a strap 10 with a tab 11 for attachment to the limb. The front cover 3 is provided with a hinge 12, a strap 13 and a tab 14 for attachment to a relatively rigid point on the body. When carrying a breathing booster on the arm (Fig. 2), the strap 11 is fastened, for example, to the hand 15 and the strap 14 to the arm 18. The suction chamber 5 is connected with a hose 17 to the filter 18 and the discharge chamber 7 to a hose 20. When the arm is straightened, the flexible membrane container 1 is stretched, thereby increasing the volume and sucking air through the filter 18 through the hose 17 into the container 1. if the breath booster is attached to the leg.

The breathing booster can be used as part of a protective suit for its ventilation and thus significantly improve working conditions.

Claims (1)

SUBJECT A breathing booster interposed between a protective mask and a filter, characterized in that it consists of a flexible diaphragm container (1j), closed on both sides by front covers (2, 3j). BACKGROUND OF THE INVENTION with a valve fitting inserted into the bellows (8) and attached by straps (10, 13) to the lower limb and to a relatively stationary point on the torso.