Respiratory protection apparatus
US4452240A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 5, 1981 |
| Grant date | Jun 5, 1984 |
| Priority date | — |
| Expiry date | Oct 5, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62B18/00
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A respiratory protection apparatus includes a nose engaging means for urging the outer walls of the nose toward the inner wall, which includes spaced-apart urging members, and a mouthpiece, said nose engaging means being rigidly secured to said mouthpiece. The apparatus further comprises a conduit arrangement for supplying air to said mouthpiece, said mouthpiece secured to a portion of the conduit arrangement, said conduit arrangement being sufficiently rigid so that said conduit arrangement can be used to direct said nose engaging means onto said nose and then direct the mouthpiece into the mouth of the worker. The apparatus further includes a valve for communicating with the conduit arrangement for allowing for the inhalation and exhalation of air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.