US 12,076,758 B2
Ladder cleaning device and methods
Lucas Glaeser, Gentofte (DK); Kurt Gilmour, Gentofte (DK); and Klaus Baggesen Hilger, Gentofte (DK)
Assigned to Ørsted Wind Power A/S, (DK)
Appl. No. 17/255,318
Filed by Ørsted Wind Power A/S, Fredericia (DK)
PCT Filed Jun. 18, 2019, PCT No. PCT/EP2019/065987
§ 371(c)(1), (2) Date Dec. 22, 2020,
PCT Pub. No. WO2020/007601, PCT Pub. Date Jan. 9, 2020.
Claims priority of application No. 18181227 (EP), filed on Jul. 2, 2018.
Prior Publication US 2022/0266309 A1, Aug. 25, 2022
Int. Cl. B08B 1/16 (2024.01); B08B 1/30 (2024.01); E06C 7/00 (2006.01)
CPC B08B 1/165 (2024.01) [B08B 1/30 (2024.01); E06C 7/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A ladder cleaning device comprising
a plurality of polygonal rings, wherein each of the plurality of rings has a respective central opening and is configured to be assembled around a respective rung of a ladder, wherein each respective central opening is configured so that inner surfaces of the polygonal ring can lie flush with the respective rung of a ladder;
a cord, the cord being threaded through the respective central openings of each of said plurality of rings; and
at least one attachment device that is fitted on the cord and is configured to attach said cord to the ladder.