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Cutter teeth assembly

  • US 5,085,113 A
  • Filed: 01/03/1991
  • Issued: 02/04/1992
  • Est. Priority Date: 11/12/1986
  • Status: Expired due to Term
First Claim
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1. A cutter teeth assembly comprising:

  • (a) a plurality of cutter teeth of alternating left and right configuration;

    (b) a member interconnecting said teeth to enable them to be moved in a predetermined forward direction;

    (c) each of said teeth comprising a flat, planar base portion having opposite, parallel side surfaces, a sidewall kerf cutting portion integral with said base portion extending upwardly therefrom and having an offset to one side of said base portion, and a kerf bottom cutting portion extending from said sidewall kerf cutting portion transversely across the plane of said base portion, said sidewall kerf cutting portion and said kerf bottom cutting portion each having a respective forward edge formed with a beveled surface defining a cutting edge adapted to cut a kerf in a workpiece of greater width than the width of said base portion between said side surfaces;

    (d) a depth gauge element positioned forwardly of said cutting edge, said depth gauge element having an upwardly-extending sidewall portion and having a top plate extending substantially at a right angle to said sidewall portion transversely across the plane of said base portion a distance greater than said width of said base portion, said top plate having a forwardly-facing transverse leading edge and a rearwardly-facing transverse trailing edge and defining an upwardly-facing planing surface sloping upwardly from said transverse leading edge to said transverse trailing edge toward said cutting edge, said transverse trailing edge of said top plate and said forward edge of said kerf bottom cutting portion being located at different respective heights above said base portion; and

    (e) means mounting said depth gauge element for maintaining said transverse trailing edge of said top plate at a height below that of said forward edge of said kerf bottom cutting portion regardless of whether or not said cutter teeth are cutting said work-piece.

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