Portable conditioned air breathing pipe

Details Portable conditioned air breathing pipe Portable conditioned air breathing pipe

1975-10-10

1977-07-19

Michell, Robert W.

Surgery

Respiratory method or device

Ozone or ion generation

128208, A61M 1506

Patent

active

040362248

ABSTRACT:
A portable conditioned air breathing pipe is provided in which a heat conductive tube having a burner or other suitable heating means therein is mounted in the pipe bowl in sealed relationship with a surrounding chamber which is connected through a tubular casing to a mouthpiece and fresh air is introduced into the surrounding chamber and heated so that heated air can be withdrawn through the mouthpiece to the mouth of the user. According to preferred embodiments, the outer surface of the heat conductive tube is provided with heat exchange fins, the interior of the heat exchange tube is provided with a heat economizer, the tubular casing is provided with a damper to admit cooler air and a filter is provided in the tubular casing between the heating chamber and the mouthpiece.

REFERENCES:
patent: 801555 (1905-10-01), Sprague
patent: 1262846 (1918-04-01), Rider
patent: 2030075 (1936-02-01), Robinson
patent: 2104266 (1938-01-01), McCormick
patent: 2450610 (1948-10-01), Pierce

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