Mulcher blade
First Claim
1. A mulching rotary lawn mower blade, said blade comprising:
- a mounting section adapted to be attached to a lawn mower motor drive shaft;
first and second sections extending respectively further outward from said mounting section and being respectively pitched upwardly and downwardly;
a first cutting surface formed along at least a portion of at least one of said first and second surfaces and adapted to form grass clippings; and
a second cutting surface formed along at least a portion of one of said first and second surfaces and having at least one cutout, wherein said second cutting surface cuts said grass clippings as said grass clippings pass through said cutout.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention relates to a mulching rotary lawn mower blade and a method of mulching grass using a mulching rotary lawn mower blade. The mulching rotary lawn mower blade comprises a mounting section adapted to be attached to a lawn mower motor drive shaft and first and second sections extending respectively further outward from the mounting section and being respectively pitched upwardly and downwardly. First and second cutting surfaces are formed along at least a portion of at least one of the first and second surfaces. The first cutting surface is adapted to form grass clippings, while the second cutting surface has at least one cutout and is adapted to cut the grass clippings. The first cutting surface passes the grass clippings to the second cutting surface which recuts the grass clippings as the grass clippings pass through the cutout.
31 Citations
20 Claims
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1. A mulching rotary lawn mower blade, said blade comprising:
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a mounting section adapted to be attached to a lawn mower motor drive shaft;
first and second sections extending respectively further outward from said mounting section and being respectively pitched upwardly and downwardly;
a first cutting surface formed along at least a portion of at least one of said first and second surfaces and adapted to form grass clippings; and
a second cutting surface formed along at least a portion of one of said first and second surfaces and having at least one cutout, wherein said second cutting surface cuts said grass clippings as said grass clippings pass through said cutout. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A mulching rotary lawn mower blade, said blade comprising:
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a central mounting section adapted to be attached to a lawn mower motor drive shaft;
two first sections, each of said first sections extending outwardly from opposing sides of said central mounting section and pitched upwardly therefrom;
two second sections, each of said second sections extending outwardly from one of said first sections and pitched downwardly therefrom;
a cutting edge extending along one side of at least a portion of both said first and second sections and forming a first cutting surface; and
a plurality of wings formed proximate a tip of each of said second sections, said plurality of wings defining at least one cutout and forming a second cutting surface, wherein said first cutting surface cuts grass forming grass clippings and passes said grass clippings to said second cutting surface which recuts said grass clippings as said grass clippings pass through said at least one cutout. - View Dependent Claims (14, 15, 16)
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17. A method for mulching grass using a mulching rotary lawn mower blade, said method comprising:
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cutting grass blades using a first cutting surface, forming grass clippings; and
recutting said grass clippings using said second cutting surface forming mulch. - View Dependent Claims (18, 19, 20)
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Specification