A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
126/13, 137/1.5
A61M 16/00 (2006.01) A61M 16/10 (2006.01) B63C 11/28 (2006.01)
Patent
CA 1080579
ABSTRACT OF THE DISCLOSURE A heat receiver is provided comprising a housing through which the breathing mixture passes in one direction and through which the exhaled breath passes in the opposite direction. The housing contains heat conductive elements through which the breathing mixture and exhaled breath pass and spacers positioned one between each pair of adjacent heat conductive elements. The spacers are poor heat conductors and non-hygroscopic to minimize moisture retention. In use, exhaled breath warms the heat conductive elements sequentially so that each element will be slightly cooler than the last element exposed to the exhaled breath. There will be minimal heat stored in the spacers and the moisture content of the exhaled breath tends to be carried through the device so that upon drawing breathing mixture through the device a substantial part of the sensible heat originally in the exhaled breath will be reclaimed by the breathing mixture. The latent heat originally in the ex- haled breath will be lost.
287208
Kuehn Lorne A.
Pogorski Louis A.
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