Devices for preventing inhalation of, exposure to, airborne material
US12357850B2 · kind B2 · utility
Inventor
Key dates
| Filing date | May 28, 2021 |
| Grant date | Jul 15, 2025 |
| Priority date | — |
| Expiry date | Sep 24, 2043 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2209/15
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A protection device for preventing exposure to undesired airborne material. The device including a filter assembly having a filter, and a proximal and a distal layer configured to hold the filter sandwiched between the proximal layer and the distal layer, a one-way valve positioned in the filter assembly and coupled to the proximal layer of the filter assembly, and a seal positioned along a peripheral edge of the filter assembly, the filter assembly and the seal defining a first safety compartment for enclosing a user's mouth and nose. The device can include an eye shield assembly having a skirt extending from the filter assembly and positioned distal to the seal, an optically transparent eye shield coupled to the skirt to form a continuous surface from the filter assembly to a top portion of the eye shield, and a frame coupled to the frame assembly and eye shield assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.