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US 2018/0001120 A1Published application
Filter assembly for a breathing apparatus
AssigneePAFtec Technologies Pty Ltd.
InventorsAlexander VIRR, Xiaoyi FU, Dan KAO, John Michael SNOW, Damian Charles JOHNSON
Life of this patent
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Abstract
A filter assembly for a breathing apparatus, such as a powered air purifying respirator. The filter assembly includes a frame for receiving and retaining a filter element, a cover connected to the frame and dimensioned to cover the aperture, a filter element, and an indicator for indicating when the filter element is retained in the filter frame and the cover is arranged across the aperture. A powered breathing apparatus including the filter assembly is also disclosed.
Claims20
A filter assembly for a breathing apparatus, the filter assembly comprising:
- a frame defining an aperture dimensioned to receive and retain a filter element;
- a cover connected to the frame and dimensioned to cover the aperture;
- a filter element;
- and
- an indicator for indicating when the filter element is retained in the filter frame and the cover is arranged across the aperture.
2 more elements
Dependencies are inferred from the claim text.