Trimmer head
US6817102B2 · kind B2 · utility
19Cited by
15References
6Claims
0Family size
Inventors
Key dates
| Filing date | Apr 23, 2002 |
| Grant date | Nov 16, 2004 |
| Priority date | — |
| Expiry date | Apr 23, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D34/733
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A trimmer head for use with rotary vegetation cutting devices is disclosed. The head has a wear guide that indicates when the body of the trimmer head is worn down and needs replacement. In an embodiment of the invention, the body comprises two plates that are molded to fit together. The plates have bores for holding connecting pins. The connecting pins not only hold the plates together, but also pivotably support cutting blades, by fitting into openings in the blades.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.