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Mulching blade including multiple cutting edges

  • US 5,199,251 A
  • Filed: 12/19/1991
  • Issued: 04/06/1993
  • Est. Priority Date: 12/19/1991
  • Status: Expired due to Term
First Claim
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1. A grass cutting blade for cutting grass or other vegetation, comprising:

  • a mounting portion for mounting relative to a rotatable shaft;

    a first end; and

    a second end opposing said first end and including leading and trailing cutting members, said leading and trailing cutting members each defining corresponding leading and trailing cutting edges, said leading cutting edge being below said trailing edge, said leading cutting member including an upturned foil portion for causing upward air and grass clippings flow upon rotation of said blade in its cutting direction, said foil portion having an upper edge portion which upon rotation of said blade travels in a path substantially parallel to the cutting path of said trailing cutting edge,such that as said blade rotates, grass is first clipped by said leading cutting edge, a portion of said grass clippings are directed upwardly by said foil into the cutting path of said cutting edge, and then clipped a second time in midair by said trailing cutting edge.

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