Graduated pole strap
US7367425B2 · kind B2 · utility
6Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2004 |
| Grant date | May 6, 2008 |
| Priority date | — |
| Expiry date | Jun 5, 2025 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06C7/188
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The graduated pole strap apparatus can be wrapped around a pole, tree or the like and secured on each end to the rails of a ladder. Further, it contains markings calibrated in proportion to the length of the ladder to show whether the ladder is secured at a safe inclination. For an extension ladder, the markings are calibrated based on the rung on which the fly-lock mechanism is locked on the face of the ladder of a particular length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.