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US 4,223,441 AGranted
Flail for a rotary vegetation cutter
OwnerRobert G. Evertsinventor
Life of this patent
Estimating the term…
Abstract
A flail for a rotary vegetation cutter. The flail is attached to a rotor and is centrifugally swung around the axis of rotation of the rotor to strike vegetation such as grass and weeds to cut them down. The flail comprises a plurality of metal filaments braided into an elongated strand and an abradable jacket surrounding and embracing the strand. When rotated the flail strikes and cuts objects in its path, the jacekt near its free end abrading away to expose the filaments adjacent to the free end. The strand unravels where the jacket has been removed to form a group of loose metallic filament ends.
Claims4
In combination:
- a rotor having an axis of rotation, and a flail held by and turned around the axis of rotation, said flail comprising:
- a plurality of metal filaments braided into an elongated strand having a dimension of length and a pair of ends, and an abradable jacket surrounding and embracing said strand, one end of said flail being connected to said rotor to be rotated around the said axis of rotation, said flail, when rotated around said axis, striking objects in its path, the jacket near its free end abrading away to expose the strand adjacent to its free end, the strand thereafter unraveling where the jacket is abraded away, there to form a group of loose metallic free filament ends to cut vegetation.
Dependencies are inferred from the claim text.