US 12,336,587 B2
Hard hat with fan
Caleb C. Adams, Milwaukee, WI (US); Trent T. Bauters, West Allis, WI (US); Jesse J. Brown, Milwaukee, WI (US); Bryce M. Lee, Glendale, WI (US); Samuel L. Lombardi, Milwaukee, WI (US); James C. Popp, Milwaukee, WI (US); Christopher Sosnowski, Milwaukee, WI (US); Thomas S. Whitburn, Milwaukee, WI (US); and Todd A. Zeilinger, Wauwatosa, WI (US)
Assigned to Milwaukee Electric Tool Corporation, Brookfield, WI (US)
Filed by Milwaukee Electric Tool Corporation, Brookfield, WI (US)
Filed on Jan. 11, 2024, as Appl. No. 18/410,562.
Claims priority of provisional application 63/500,808, filed on May 8, 2023.
Claims priority of provisional application 63/492,679, filed on Mar. 28, 2023.
Claims priority of provisional application 63/487,121, filed on Feb. 27, 2023.
Claims priority of provisional application 63/482,106, filed on Jan. 30, 2023.
Prior Publication US 2024/0251904 A1, Aug. 1, 2024
Int. Cl. A42B 3/28 (2006.01)
CPC A42B 3/286 (2013.01) [A42B 3/28 (2013.01); A42B 3/281 (2013.01); A42B 3/283 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A hard hat fan system, comprising:
a shell having an inner surface and an outer surface opposite the inner surface;
a fan coupled to the outer surface of the shell;
an impact absorbing layer, comprising:
an outer surface coupled to the inner surface of the shell;
an inner surface opposite the outer surface of the impact absorbing layer, the inner surface of the impact absorbing layer defining an interior region configured to receive a head of a user;
a recessed surface formed in the outer surface of the impact absorbing layer, the recessed surface defining a channel extending along the outer surface of the impact absorbing layer; and
an air vent extending from the recessed surface, through the impact absorbing layer, and to the inner surface of the impact absorbing layer; and
a primary duct extending between the fan and the impact absorbing layer, the primary duct directing air into an inlet side of the channel;
wherein the channel defines a secondary duct between the outer surface of the impact absorbing layer and the inner surface of the shell, such that air flows from the inlet side of the channel to the air vent and into the interior region; and
wherein the hard hat fan system is configured to provide fluid communication for air between an exterior of the shell and the interior region.