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US 4,362,007 AGranted
Cutting head assembly for a rotary motor
OwnerMerrill V. Kennedy, Howard E. Richardsinventors
Life of this patent
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Abstract
A cutting head assembly for a rotary motor is disclosed characterized by a flat disc member having a plurality of holes which are provided with a leading edge. A plurality of radially disposed holes are provided for insertion of a monofilament line which is the cutting element. A bar support is provided to prevent the accidental dislodging of the monofilament line.
Claims4
A rotary mower cutting head assembly comprising:
- a disc having a smooth closed periphery, a plurality of longitudinally extending openings, and a plurality of radially extending openings;
- a plurality of monofilament elements having an elongated portion and a wider head portion, said monofilament elements adapted to be inserted into the radial openings on said disc;
- a smooth contour channel disposed on the periphery of the disc at the radial openings;
- a plurality of retaining members disposed in between the radially extending openings and the center of the disc whereby inward travel of the monofilament element will be restricted;
- and
- a plurality of curved vanes disposed on said disc in a substantially radial position, whereby the vanes create an upward flow of air through the longitudinally extending openings.
3 more elements
Dependencies are inferred from the claim text.