Device for reducing the presence of moisture within an enclosure containing a heat source

A device for reducing the presence of moisture within an enclosure including a heat source comprising:

• a) a housing containing silica gel desiccant;
• b) an air-impermeable and water vapor permeable layer comprising silicone imbibed expanded polytetrafluoroethylene membrane incorporated with said housing on a side adjacent said heat source;
• c) a vent hole in the side of the said device providing a pathway from inside the enclosure to the desiccant, said vent hole covered with a hydrophobic, air-permeable expanded polytetrafluoroethylene layer;
• d) a diffusion tube having a first opening adjacent to said desiccant and a second opening adjacent to the atmosphere external to the housing, said diffusion tube creating a pathway from the desiccant in the interior of the housing to the external atmosphere and having an expanded polytetrafluoroethylene layer covering the opening to the external atmosphere;
• e) a mechanical means for locating said housing adjacent the heat source.

A device for reducing the presence of moisture within an enclosure including a heat source comprising:

• a) an air-impermeable, water vapor-permeable silicone-imbibed expanded polytetrafluoroethylene tube, said tube oriented adjacent said heat source;
• b) a connector for said tube with a vent hole in the side of the connector providing a pathway from inside the enclosure to the desiccant, said vent hole covered by a hydrophobic, air-permeable expanded polytetrafluoroethylene layer;
• c) a diffusion tube having a first opening adjacent to said desiccant and a second opening adjacent to the atmosphere external to the connector, said diffusion tube creating a pathway from the desiccant in the interior of the tube to the external atmosphere and having an expanded polytetrafluoroethylene layer covering the opening to the external atmosphere;
• d) a mechanical means for locating said tube and connector adjacent the heat source whereby the heat source can heat the desiccant to drive moisture from the desiccant.