Universal fit face mask
US5699791A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 1996 |
| Grant date | Dec 23, 1997 |
| Priority date | — |
| Expiry date | Jun 4, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA41D13/1115
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A conformable face mask for health care workers is provided. The use of elastomeric materials applied under tension helps define a plurality of gathers which facilitate the donning and positioning of the mask. An elastomeric headband maintains a comfortable and efficient seal while a similar elastomeric chin strap helps provides a pouch-like enclosure for the wearer's chin. The substantially rectangular face mask includes a plurality of horizontal stays which are individually adjustable to create a three dimensional shaped mask which defines a spaced breathing area around the wearer's nose and mouth. Additional rigidity is provided by the selected melting of horizontal bands of the filter portion of the mask.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.