Hub attachment for a drive shaft of a cordless grass/weed groomer trimmer
US5170561A · kind A · utility
14Cited by
18References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 4, 1991 |
| Grant date | Dec 15, 1992 |
| Priority date | — |
| Expiry date | Mar 4, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D34/4166
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A hub attachment for a rotating drive shaft of a hand-held, portable string cutter for grass and weeds having a centrally located cylindrical anchor lug for a nylon cutting line which is held in a retainer line anchor that is in turn positioned in the semi-cylindrical cavity of the hub attachment. The retainer line anchor is provided with a latching tab that can be rotated from an unlatched position to a position in which the tab is removably attached to the hub.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.