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US 7,063,087 B2Granted
Filtering system for the protection against biological agents
AssigneeCl. Com Srl
InventorsStefano Cerbini, Pasqualino Lo Ioco
Life of this patent
Estimating the term…
Abstract
The invention refers to a filtering system composed by a face mask and a filter against biological agents, joined together by a new connector. The connector joins the filter to the mask in an easy, fast and affective way. The filtering system provides a very high barrier against biological agents, a high seal and is very easy to use.
Claims17
A filtering system comprising:
- A) a protective face mask;
- B) a filter against biological agents;
- and
- C) a connector useful to easily, quickly and efficaciously join the filter to the mask, wherein,
- the filter is a protective filter against biological agents comprising a pleated membrane made of ceramic microfibers, and
- said membrane is hydrophobic on the worker side, avoiding the penetration of liquid with surface tension >70 dine/cm, and is hydrophilic on the environment side, in order to ensure an high humidification yield.
3 more elements
A filtering system comprising:
- a mask comprising a plastic face-piece;
- a transparent plastic screen;
- a filter that is a protective filter against biological agents consisting in a pleated membrane made of ceramic microfibers;
- and
- a connector comprising a cylinder having, on the mask side, external diameter equal to 40 mm, the external diameter of the filter side being 35.5 mm while the internal diameter is 25.6 (+0.2/−0.0) mm, wherein
- said membrane is hydrophobic on the worker side, avoiding the penetration of liquid with surface tension >70 dine/cm, and is hydrophilic on the environment side, in order to ensure an high humidification yield.
3 more elements
A filtering system comprising:
- a protective face mask;
- a filter against biological agents;
- and
- a connector efficaciously joining the filter to the mask, wherein,
- the filter is a protective filter against biological agents and comprises a pleated membrane made of ceramic microfibers, and
- the membrane is hydrophobic on the worker side, avoiding the penetration of liquid with surface tension >70 dine/cm, and is hydrophilic on the environment side.
3 more elements
Dependencies are inferred from the claim text.