Patent ID: 6241218
Filing Date: 2001-06-05
Classification: A01M,B01F,Y10S

Abstract:
A chemical diffusion device comprising:a case having a first opening in a first end and a second openings in a second end;at least one container in said case for containing a liquid chemical:said container having an open upper end;at least one support body;a material on a surface of said support body;said material having an end disposed to contact said liquid chemical in said container;said material being of a type capable of absorbing said liquid chemical from said container through capillary action;said material being gas-permeable;a surface of said material being exposed to said first opening;an other surface of said material being exposed to said second opening;means for moving air into one of said first opening and said second opening, and out the other thereof whereby said air passes through said material, and evaporates said liquid chemical; andsaid first opening is higher than said second opening, and said means for moving includes means for drawing air into said second opening and out said first opening.