US 12,305,447 B2
Increased and improved functionality for a ladder
Steven W. Hyma, Milwaukee, WI (US); Christopher S. Hoppe, Cedarburg, WI (US); Grant T. Squiers, Cudahy, WI (US); Michael Stearns, Milwaukee, WI (US); Aaron M. Williams, Milwaukee, WI (US); Benjamin T. Jones, St. Francis, WI (US); Adam M. Moller, Brookfield, WI (US); Connor J. McTaggart, Elm Grove, WI (US); and Aaron S. Blumenthal, Shorewood, WI (US)
Assigned to Milwaukee Electric Tool Corporation, Brookfield, WI (US)
Filed by Milwaukee Electric Tool Corporation, Brookfield, WI (US)
Filed on Sep. 2, 2020, as Appl. No. 17/010,612.
Claims priority of provisional application 62/908,243, filed on Sep. 30, 2019.
Claims priority of provisional application 62/895,220, filed on Sep. 3, 2019.
Prior Publication US 2021/0062579 A1, Mar. 4, 2021
Int. Cl. E06C 1/20 (2006.01); E06C 7/00 (2006.01); E06C 7/14 (2006.01)
CPC E06C 1/20 (2013.01) [E06C 7/00 (2013.01); E06C 7/14 (2013.01); E06C 7/003 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A ladder configured to couple to a stackable storage unit, the ladder comprising:
a top shelf comprising an upper surface;
a coupling component extending from the upper surface of the top shelf, the coupling component configured to couple the upper surface of the top shelf to the stackable storage unit, the coupling component comprising a first recessed surface, a first rear wall, a first sidewall extending upward from the first recessed surface, a second sidewall extending upward from the first recessed surface, a first rib extending from the first rear wall and the first sidewall above and offset from the first recessed surface, and a second rib extending from the first rear wall and the second sidewall above and offset from the first recessed surface, the second rib distinct from the first rib, the first recessed surface protruding outward from each of the first rear wall, the first sidewall, and the second sidewall, the first rib protruding outward from each of the first rear wall and the first sidewall parallel to and directly above the first recessed surface such that the first rib, the first recessed surface and the first sidewall collectively partially define a first channel that extends horizontally along the first sidewall from a first closed end at the first rear wall to a first open end, and the second rib protruding outward from each of the first rear wall and the second sidewall parallel to and directly above the first recessed surface such that the second rib, the first recessed surface and the second sidewall collectively partially define a second channel that extends horizontally along the second sidewall from a second closed end at the first rear wall to a second open end;
a pair of front legs pivotally coupled to the top shelf;
a plurality of steps extending between the pair of front legs; and
a pair of back legs pivotally coupled to the top shelf.