Protective breathing mask
US6338341B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 1999 |
| Grant date | Jan 15, 2002 |
| Priority date | — |
| Expiry date | Nov 8, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62B18/08
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A protective breathing mask has a connector housing unit having a connector housing for accommodating breathing mask components. The connector housing unit has a flange-like collar extending from the connector housing. The flange-like collar has a connecting rim. A mask body made of an elastomer has a profile-reinforced portion defining a cutout for the connector housing unit and the profile-reinforced portion is shaped to match the peripheral rim. A clamping ring is provided for fixedly securing the profile-reinforced portion at the connecting rim. The clamping ring has a slot for holding the profile-reinforced portion. The clamping ring is shaped to match the connecting rim of the flange-like collar and has a connecting surface for connecting the clamping ring to the collar at the connecting rim.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.