Warm air weathermask

Details Warm air weathermask Warm air weathermask

1977-02-18

1979-04-24

Recla, Henry J.

Surgery

Respiratory method or device

Ozone or ion generation

1281465, 1281466, A61M 1500

Patent

active

041506715

ABSTRACT:
This disclosure teaches an apparatus in the form of a face mask which in addition to protecting the face from direct impingement of cold air, snow, sleet and the like, also serves to preheat air prior to inspiration thereof by indirect heat exchange against warm exhaled air. Illustratively, an intake conduit having heat exchanging fins is mounted concentrically within an exhaust conduit, all within a face-fitting housing. Warm, exhaled air transfers its heat to incoming air.

REFERENCES:
patent: 1999086 (1935-04-01), Claudius
patent: 3326214 (1967-06-01), McCoy
patent: 3895675 (1975-07-01), Rein et al.
patent: 4007737 (1977-02-01), Paluch

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