US 12,110,742 B2
Ladder with wide rung
Daniel C. Mora, Transfer, PA (US); and Robert D. Beggs, Stoneboro, PA (US)
Assigned to Werner Co., Greenville, PA (US)
Filed by Werner Co., Greenville, PA (US)
Filed on Dec. 24, 2020, as Appl. No. 17/134,078.
Application 16/207,981 is a division of application No. 15/379,086, filed on Dec. 14, 2016, granted, now 10,151,144.
Application 17/134,078 is a continuation of application No. 16/207,981, filed on Dec. 3, 2018, granted, now 10,876,355.
Prior Publication US 2021/0115732 A1, Apr. 22, 2021
Int. Cl. E06C 7/08 (2006.01); E06C 1/12 (2006.01); E06C 1/02 (2006.01)
CPC E06C 7/08 (2013.01) [E06C 1/12 (2013.01); E06C 7/081 (2013.01); E06C 7/082 (2013.01); E06C 7/083 (2013.01); E06C 7/086 (2013.01); E06C 7/087 (2013.01); E06C 1/02 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A ladder comprising:
a first rail;
a second rail;
a standard rung having a length that extends between the first rail and the second rail and a maximum width that extends perpendicular to the length; and
a first wide rung, the first wide rung having a first end portion coupled to the first rail and a second end portion coupled to the second rail, the first wide rung including:
a top portion having a first edge and a second edge that extend between the first end portion and the second end portion along a length of the first wide rung, the first edge and the second edge defining a width therebetween, the width of the first wide rung wider than the maximum width of the standard rung,
a first linear wall extending down from the first edge,
a second linear wall extending down from the second edge,
a third linear wall extending from the first linear wall at an acute angle relative to the top portion, and
a fourth linear wall extending from the second linear wall at an acute angle relative to the top portion and connected to the third linear wall,
the top portion, the first linear wall, the second linear wall, the third linear wall, and the fourth linear wall defining a cavity, at least one arcuate slot protruding from an interior surface of first wide rung and extending through the cavity along the length of the first wide rung; wherein the at least one arcuate slot includes a first arcuate slot disposed adjacent the first edge, a second arcuate slot disposed adjacent the second edge and extending through the cavity along the length of the first wide rung, and a third arcuate slot disposed adjacent a joint between the third linear wall and the fourth linear wall and extending through the cavity along the length of the first wide rung.