Noise attenuating flexible cutting line for use in rotary vegetation trimmers and method of manufacture
US6910277B2 · kind B2 · utility
12Cited by
6References
41Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2001 |
| Grant date | Jun 28, 2005 |
| Priority date | — |
| Expiry date | Nov 9, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2976
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A flexible noise attenuating cutting line for use in rotary vegetation trimmers formed by extruding a pair of molten monofilament strands in proximate disposition through a rotating die so as to form a line comprised of two monofilament polymer strands bonded together in a twisted disposition about a central longitudinal axis so as to define a pair of substantially V-shaped opposed troughs extending helically along and about the line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.