US 12,029,270 B2
Hard hat attachment system and saftey equipment
Benjamin T. Jones, St. Francis, WI (US); Nicole Z. Summersett, Milwaukee, WI (US); Aaron S. Blumenthal, Shorewood, WI (US); Michael Stearns, Milwaukee, WI (US); Steven W. Hyma, Milwaukee, WI (US); McKenzie T. Price, Milwaukee, WI (US); Christopher S. Hoppe, Midvale, UT (US); and Grant T. Squiers, Cudahy, WI (US)
Assigned to Milwaukee Electric Tool Corporation, Brookfield, WI (US)
Filed by Milwaukee Electric Tool Corporation, Brookfield, WI (US)
Filed on Jan. 5, 2023, as Appl. No. 18/150,658.
Application 18/150,658 is a continuation of application No. 17/103,066, filed on Nov. 24, 2020, granted, now 11,583,023.
Application 17/103,066 is a continuation of application No. PCT/US2020/060179, filed on Nov. 12, 2020.
Claims priority of provisional application 62/935,387, filed on Nov. 14, 2019.
Prior Publication US 2023/0148698 A1, May 18, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A42B 3/04 (2006.01)
CPC A42B 3/0406 (2013.01) 20 Claims
OG exemplary drawing
 
1. A hard hat, comprising:
an outer shell comprising:
an exterior surface;
an interior surface defining a cavity configured to receive a head of an operator; and
a lower circumference extending along the exterior surface of the outer shell; and
a side accessory ridge coupled to a lateral side of the exterior surface and extending along the lower circumference, the side accessory ridge comprising:
a front accessory port with a first length;
a middle accessory port with a second length; and
a rear accessory port having a third length, wherein the second length is different from the first length and the third length.