Ventilating apparatus for a protective suit
AssigneeJ. Blaschke Pumpen-Filteranlagen
InventorVolker Hager
Life of this patent
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Abstract
The ventilating apparatus for a protective suit has a portable, comparatively small housing in which a blower driven by a battery-powered electric motor is mounted. The high pressure side of the blower is provided with a plurality of different connectors which provide different flow rates. The flow rate through the connectors can be made changable by a rotary slide valve which comprises a flexible plate and a handle for exterior operation. A connector on the high pressure side can be provided to supply air to a breathing mask as well as to ventilate the suit. Because a significantly reduced air flow rate is necessary for the breathing mask an orifice plate or diaphram is provided for the connector for the breathing mask. The vacuum or low pressure side of the blower may be provided with a filter connector.
Claims9
In a ventilating apparatus for ventilation of a protective suit comprising a blower driven by an electric motor mounted in a portable housing, said blower having a vacuum side and a high pressure side, and a connector for connection to said protective suit on said high pressure side of said blower, the improvement comprising a plurality of said connectors on said high pressure side of said blower having different flow rates.
A ventilating apparatus for ventilation of a protective suit comprising:
- a portable housing with a thermally insulating layer;
- a blower driven by an electrical motor mounted in said portable housing, said blower having a vacuum side and a high pressure side;
- a plurality of connectors on said high pressure side of said blower including one for connection to said protective suit, said connectors providing a plurality of different flow rates and each having an opening inside said housing;
- and
- a control device comprising a rotary slide valve disk made of a flexible plate positioned adjacent said openings of said connectors inside said housing, said rotary slide valve disk being slidable over said openings of said connectors by operation of an exterior manually-operated handle.
Dependencies are inferred from the claim text.