Method and apparatus for producing a respiratory filter
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United States of America Patent
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Oct 30, 2007
Grant Date -
Jan 3, 2002
app pub date -
Apr 18, 2001
filing date -
Apr 27, 2000
priority date (Note) -
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Abstract
A method and apparatus in which a granular adsorbent, absorbent, chemisorptive, or catalytic material, particularly activated carbon is intermixed with (a) meltable polymer(s), and that the resulting mixture is heated under pressure and pressed into a molded piece (2). We propose to heat the mixture under pressure in a connecting part for a respirator or fan filter unit or in a connecting part (1) for an adapter for a respirator or fan filter unit, thereby positively and/or non-positively compacting it with said connecting part, and to make the connection between said connecting part (1) and said compacted mixture gastight.
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