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US 11,027,156 B2Granted
Emergency filter system for ventilated hood
AssigneeHoneywell International Inc.
InventorsChristophe Chessari, Swan Tuffery
Life of this patent
Estimating the term…
Abstract
A ventilated hood having an external air flow hose and comprising a filter incorporated in the ventilated hood, and a seal, wherein when the seal is intact, air does not flow through the filter.
Claims11
A ventilated hood, comprising:
- an external air flow hose coupled to the ventilated hood;
- an emergency breathing apparatus comprising a filter incorporated in the ventilated hood, the filter having an exterior face and an interior face, where the exterior face of the filter faces towards an exterior of the ventilated hood and wherein the interior face of the filter faces towards an interior of the ventilated hood;
- a first seal coupled to one of the exterior of the ventilated hood or the exterior face of the filter;
- a head enclosure;
- and
- a collar coupled to the external air flow hose and configured to inflate in response to air flow in the external air flow hose to impede infiltration of contaminants from an external environment to an interior of the head enclosure.
3 more elements
Dependencies are inferred from the claim text.