Ladder safety attachment
US5638916A · kind A · utility
Inventor
Key dates
| Filing date | Jul 24, 1996 |
| Grant date | Jun 17, 1997 |
| Priority date | — |
| Expiry date | Jul 24, 2016 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06C7/48
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A ladder safety attachment designed to secure a ladder at its top to a tree or pole to prevent rocking or sliding of the ladder out of the position to which the ladder was initially set. The safety attachment includes a platform with two sets of spikes. The spikes in the first set are fixed in position with respect to the platform and are designed to engage a tree or pole as soon as the combined safety attachment and ladder are placed against the pole or tree, holding the ladder in its initial position while an operator ascends the ladder to engage the second set of spikes. The spikes in the second set are adjustable and are designed to accommodate various diameter trees or poles. The safety attachment further includes a adjustable set of ladder attachment brackets which can be adjusted to accommodate ladders of various sizes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.