Step ladders, components for step ladders and related methods
US10597941B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2014 |
| Grant date | Mar 24, 2020 |
| Priority date | — |
| Expiry date | Sep 25, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06C7/46
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A step ladder includes a first assembly having a first pair of spaced apart rails, a second assembly having at least one rail, and a top cap coupled with the first assembly and the second assembly. At least one of the first and second assemblies may be pivotally coupled with the top cap. The first assembly includes a plurality of rungs coupled with the rails and may exhibit a vertical spacing of a first distance between adjacent rungs, a vertical spacing equal to the first distance between the lowermost rung and a supporting surface (e.g., the ground), and a vertical spacing between the uppermost rung and the top cap that is greater than the first distance. In one particular embodiment, the vertical spacing between the uppermost rung and the top cap is twice the distance of the first distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.