Mask

Details Mask Mask

2006-05-23

2006-05-23

Basichas, Alfred (Department: 3749)

Surgery

Respiratory method or device

Face mask covering a breathing passage

C128S203260

Reexamination Certificate

active

07047970

ABSTRACT:
A heat generating unit is incorporated in a mask in order to actively supply warm steam, and also drug vapor, to the nose and throat, and moisturize the upper respiratory tract. It is preferable that a metal powder, salt, and water be contained in the heat generating unit, and that an exothermic composition that releases steam in conjunction with the oxidation reaction of the metal powder be used therein. It is preferable that either an inhalation valve or exhalation valve be provided in the main mask body.

REFERENCES:
patent: 1071109 (1913-08-01), Stiriz
patent: 3747598 (1973-07-01), Cowans
patent: 4829997 (1989-05-01), Douwens et al.
patent: 4917119 (1990-04-01), Potter et al.
patent: 5205282 (1993-04-01), Daneshvar
patent: 5890486 (1999-04-01), Mitra et al.
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patent: 9-99084 (1997-04-01), None
patent: 11-342147 (1999-12-01), None
patent: WO 99/51174 (1999-10-01), None
JIS Japanese Industrial Standard, pp. 1-8, JIS P8117, “Paper and Board-Determination of Air Permeance-Gurley Method”, 1998.
JIS Japanese Industrial Standard, pp. 1-5, JIS Z 0208, “Testing Methods for Determination of the Water Vapour Transmission Rate of Moisture—Proof Packaging Materials (Dish Method)”, 1976.

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