Post-puller and method
US8166676B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jun 1, 2011 |
| Grant date | May 1, 2012 |
| Priority date | — |
| Expiry date | Jun 1, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04H17/265
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method of removing a T-type fence post from the earth with a powered, mobile piece of equipment controlled by a human operator includes attaching a substantially flat plate to a lift arm of the powered, mobile piece of equipment such that the plate hangs substantially vertically from the lift arm and can move in an arc, the plate having an opening with a top wall and a bottom wall, moving the powered, mobile piece of equipment in a first direction to pull the plate over the fence post such that an upper portion of the post enters the opening with the bottom and upper walls of the opening engaging the post with sufficient force to retain the post in the opening when the post is pulled from the earth and raising the lift arm to pull the post from the earth in a substantially vertical direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.