Respirators
US11547878B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 2014 |
| Grant date | Jan 10, 2023 |
| Priority date | — |
| Expiry date | May 17, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62B19/00
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A respirator (10) having an oral-nasal unit (12) with a peripheral seal that seals around the nose and mouth of a wearer's face and having an inlet aperture (40) connectable to a supply of breathable air, and an outlet aperture (42). The unit having a rigid insert (106) with an exterior profile adapted to seat against a correspondingly shaped interior surface of the unit (12); an outlet conduit (112) with a tube adapted to extend through the exhale aperture (40) of the unit (12); and a wing portion (110) with a through aperture (122) registering with the unit's inlet aperture (40). The outlet conduit (112) having a bayonet connector (130, 132) that enables the unit to interchangeably and detachably connect to, a connector formed as part of an exhale aperture of a full-face mask, or of a harness assembly (102). The bayonet connector forms an airtight seal between the two.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.