Face masks

Details Face masks Face masks

2005-02-08

2005-02-08

Dawson, Glenn K. (Department: 3731)

Surgery

Respiratory method or device

Face mask covering a breathing passage

C128S206240, C128S206210, C128S205250

Reexamination Certificate

active

06851429

ABSTRACT:
A face mask is provided in two parts. One part is an adhesive ring that is secured around the nose and mouth of the user. The other part is a transparent canopy with a gas port that is a removable clip fit with the ring. When ventilation is not required, the canopy is removed, leaving the ring in position. The canopy can be clipped back onto the ring when ventilation is required.

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patent: 2337465 (1999-11-01), None
patent: WO 9925410 (1999-05-01), None

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