Tree stand ladder locking device
US8997929B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Apr 28, 2011 |
| Grant date | Apr 7, 2015 |
| Priority date | — |
| Expiry date | Jan 6, 2032 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06C7/006
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A ladder locking designed intended to prevent access to a tree stand and an attached ladder includes a two-piece interlocking frame, top and bottom hooks to engage rungs of the ladder, and a locking bar. The frames include a mesh covers having a width greater than the tree stand ladder. The frame is secured to the ladder by the top and bottom hooks, which provide opposing hangers hooked over and clamping ladder rungs. A bottom of the frame includes a locking bar which insertingly engages between the two frame sections and secured with a padlock. The frame is placed over a ladder and locked to prevent unwanted persons from ascending the ladder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.