Agricultural stake puller
US4263972A · kind A · utility
Inventor
Key dates
| Filing date | Oct 5, 1979 |
| Grant date | Apr 28, 1981 |
| Priority date | — |
| Expiry date | Oct 5, 1999 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01G17/16
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Apparatus for moving along rows of agricultural beds for pulling and collecting stakes therefrom. A stake-pulling element is suspended from framework attached to a wheeled collection bin and from a framework attached to a towing vehicle. A pair of endless parallel puller chains is disposed in the stake pulling element having a forward end near the surface of the bed and a rearward end elevated with respect thereto. The puller chains are driven to cause the inner runs of the chains to move upward and rearward with the rearward chain velocity equal to the forward velocity of the apparatus. Stakes are gripped between the chains, carried rearwardly and pulled directly upward to remove the stakes from the ground. As the stakes are carried to the rear of the chains, they are transferred to a stake transport belt which moves the pulled stakes to the bin and deposits the stakes therein. Operating power in one embodiment is obtained by coupling to the wheels of the collection bin. A propane burner is mounted ahead of the stake-pulling element for burning and clearing of strings and plants from the stakes before pulling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.