Spear-type tractor-attached hay bale pickup device
US4120405A · kind A · utility
54Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 5, 1975 |
| Grant date | Oct 17, 1978 |
| Priority date | — |
| Expiry date | Sep 5, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S414/124
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A device for impaling and lifting hay bales consisting of a long, round, pencil-pointed shaft for said purpose plus two shorter shafts of similar design protruding just below and to each side of the main impaling spear for the purpose of stabilizing the bale in the process of loading and handling. This structure is mounted on a rigid steel frame which is designed for attachment to any ordinary hydraulically operated front end loader, or for attachment to any common three-point tractor hitch. Optimum utility is achieved with a tractor having such devices mounted at each end for use at the same time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.