US 12,133,995 B2
Emergency filter system for ventilated hood
Christophe Chessari, Gard (FR); and Swan Tuffery, Poulx (FR)
Assigned to HONEYWELL INTERNATIONAL INC., Charlotte, NC (US)
Filed by Honeywell International Inc., Charlotte, NC (US)
Filed on Apr. 22, 2021, as Appl. No. 17/237,903.
Application 17/237,903 is a continuation of application No. 15/382,205, filed on Dec. 16, 2016, granted, now 11,027,156.
Application 15/382,205 is a continuation in part of application No. 13/278,439, filed on Oct. 21, 2011, granted, now 10,004,925, issued on Jun. 26, 2018.
Claims priority of application No. 16204513 (EP), filed on Dec. 15, 2016.
Prior Publication US 2021/0322800 A1, Oct. 21, 2021
Int. Cl. A62B 17/04 (2006.01); A62B 7/10 (2006.01); A62B 17/00 (2006.01)
CPC A62B 17/04 (2013.01) [A62B 7/10 (2013.01); A62B 17/006 (2013.01)] 9 Claims
OG exemplary drawing
 
1. 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 is configured to face towards an exterior of the ventilated hood and wherein the interior face of the filter is configured to face 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 positioned so as to, in use as a hood, be proximal to a neck of a user and coupled to the external air flow hose and configured to:
inflate in response to receiving air flow from the external air flow hose for impeding infiltration of contaminants from an external environment to an interior of the head enclosure by taking up space between the ventilated hood and the neck of the user; and
leak the received airflow in a controlled manner such that removal of the received airflow deflates the collar to avoid suffocation,
wherein the collar comprises a crossing configured to allow the emergency breathing apparatus to pass through the collar.