Respirator with inner half mask and pollutant indicator

Details Respirator with inner half mask and pollutant indicator Respirator with inner half mask and pollutant indicator

1992-09-18

1994-03-29

Burr, Edgar S.

Surgery

Respiratory method or device

Means for indicating improper condition of apparatus

12820621, 422 91, A62B 900, A62B 2700

Patent

active

052975444

ABSTRACT:
A respirator with an eye space (16), through which the air to be inhaled flows, and with an indicator located on a support for indicating the efficiency of the protective device on the respiration connection, which is to retain the pollutant from the environment. The pollutant indication takes place both in the case of leakages at the sealing zones of the mask or the respiration gas-carrying lines (compressed air respirator) and in the case of insufficient filter effect. To achieve this, the support (10) is arranged on an inner half mask (3) of the respirator, and an access surface, which is exposed to the pollutant and contains the indicator (18, 118), is in flow contact with the air being inhaled, which flows through the passage openings (12, 112) between the eye space (16) of the full mask (1) and the inner half mask space (4).

REFERENCES:
patent: 3395701 (1968-08-01), Bartlett
patent: 4146887 (1979-03-01), Magnante
patent: 4263588 (1981-04-01), Gautier
patent: 4326514 (1982-04-01), Eian
patent: 4428907 (1984-01-01), Heijenga
patent: 4654624 (1987-03-01), Hagan
patent: 4662996 (1987-05-01), Venkatasetty
patent: 4873970 (1989-10-01), Freidank
patent: 4886056 (1989-12-01), Simpson
patent: 5018518 (1991-05-01), Hubner
patent: 5039490 (1991-08-01), Marsoner
patent: 5057436 (1991-10-01), Ball
patent: 5059394 (1991-10-01), Phillips

Affiliated with

Also associated with

Rating

Respirator with inner half mask and pollutant indicator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Respirator with inner half mask and pollutant indicator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Respirator with inner half mask and pollutant indicator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-785516