Nose mask with a filtering device

Details Nose mask with a filtering device Nose mask with a filtering device

1992-08-17

1993-12-07

Burr, Edgar S.

Surgery

Respiratory method or device

Face mask covering a breathing passage

12820627, 12820713, A62B 1802

Patent

active

052675572

ABSTRACT:
This invention relates to a nose mask with a filtering device and in particular to one including a resilient clamp adapted to be worn on a head of an user, a mask adapted to a nose of an user and having an inlet pipe and an exhaust pipe, and a filter connected with one side of the resilient clamp and being driven by a dc motor. The filter is provided with an outlet connected with the inlet pipe of the mask via a flexible pipe and an inlet through which air may be sucked in from outside whereby when in use, air will be filtered and transmitted to the mask through the flexible pipe and the inlet pipe thereby enabling the user to inhale cleaned air while air exhaled by the user will be exhausted out of the exhaust pipe of the mask.

REFERENCES:
patent: 1176886 (1916-03-01), Ermold
patent: 1192186 (1916-07-01), Greene
patent: 1206045 (1916-11-01), Smith
patent: 1288647 (1918-12-01), Miller
patent: 1632449 (1927-06-01), McKesson
patent: 2332662 (1943-10-01), Nathanson
patent: 3683907 (1972-08-01), Cotabish
patent: 4846170 (1989-07-01), McAnalley et al.
patent: 5046492 (1991-09-01), Stackhouse et al.
patent: 5104430 (1992-04-01), Her-Mou

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