Patent Number: 6,309,448

Title: Vapor movement controlling device

Abstract: A water vapor movement control apparatus that provides a directionalproperty to movement of water vapor between two spaces with differenthumidity levels, is provided with an insulated channel connecting thefirst space with the second space, a plurality of chambers formed in thechannel by a plurality of moisture-permeable membranes which arewaterproof and air permeable, and a Peltier element that creates atemperature gradient so that the air in the chambers is always at lowertemperature toward the second space end, wherein the middlemoisture-permeable membrane among the plurality of moisture-permeablemembranes forms an approximately conical shape, and the parameter(moisture permeability).times.(air permeability) of each of the pluralityof moisture-permeable membranes decreases for the moisture-permeablemembranes toward the second space end, so that water vapor in the firstspace is moved into the second space.

Inventors: Mizobe; Kunitaka (Fukuoka-shi, Fukuoka 814-0132, JP)

Assignee:

International Classification:

Expiration Date: 10/32013