Ladders, ladder components and related methods
US9016434B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2012 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | Jul 25, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49826
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Ladders, ladder components and related methods are provided including various embodiments of a combination ladder. In some embodiments, a platform is provided that is fixedly coupled with a rail assembly of a combination ladder. The platform may pivot between a useable position or state and a stowed or stored position or state. The platform may maintain a position relative to certain rungs of the rail assembly while being displaceable relative to other rungs of the rail assembly. A hand rail may be coupled to the rail assembly and a tray may be coupled with the hand rail. The tray and the platform may be configured to maintain a constant distance between one another while the rail assembly is adjusted for height.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.