Hitchball securing device
US6155590A · kind A · utility
5Cited by
11References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 7, 1998 |
| Grant date | Dec 5, 2000 |
| Priority date | — |
| Expiry date | Dec 7, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B23/0085
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A tool includes opposed drawbar engaging surfaces and opposed ball flat engaging surfaces. The tool is provided for use with a draw-bar assembly including a draw-bar having an end with a hole defined therethrough and a surface, and a hitchball having opposed ball flats and a shank extending therefrom. When the tool is engaged with the end of the draw-bar the opposed draw-bar engaging surfaces are adjacent the end and the opposed ball flat engaging surfaces are adjacent the opposed ball flats.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.