US 11,911,637 B2
Mask
William Charles Brick, Berkley, MI (US); Martin Delonis, Northville, MI (US); James Yu-Hsin Kuo, Farmington Hills, MI (US); Arnav Wagh, Detroit, MI (US); Michael Harmon, Westland, MI (US); and Jason Powell, Ypsilanti, MI (US)
Assigned to Ford Global Technologies, LLC, Dearborn, MI (US)
Filed by Ford Global Technologies, LLC, Dearborn, MI (US)
Filed on Dec. 4, 2020, as Appl. No. 17/111,786.
Prior Publication US 2022/0176169 A1, Jun. 9, 2022
Int. Cl. A62B 18/02 (2006.01); A62B 7/10 (2006.01); A62B 18/10 (2006.01); A62B 18/08 (2006.01); A62B 9/02 (2006.01); A62B 23/02 (2006.01)
CPC A62B 18/025 (2013.01) [A62B 7/10 (2013.01); A62B 9/02 (2013.01); A62B 18/084 (2013.01); A62B 18/10 (2013.01); A62B 23/02 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A mask, comprising:
an outer shell including at least one first opening and at least one second opening;
an inner shell including at least one first opening and at least one second opening, wherein the inner shell is nested within the outer shell such that the at least one first opening and the at least one second opening of the inner shell substantially align with the corresponding one of the at least one first opening and the at least one second opening of the outer shell;
a first filter fully overlapping the at least one first opening of the inner shell and the at least one first opening of the outer shell; and
a second filter fully overlapping the at least one second opening of the inner shell and the at least one second opening of the outer shell;
wherein the inner and outer shells each comprise a transparent forward panel.