Patent ID: 7497270

Claim:
A method of improving an operation of a wavy coulter, said wavy coulter having a rotational axis and an outer periphery disposed radially outwardly from the rotational axis, said method comprising: (a) selecting a wavy coulter wherein the outer periphery is disposed at a substantially constant radius about an entire three hundred and sixty degrees of the wavy coulter; (b) selecting a plurality of distinct amplitudes of deviations from flat; (c) shaping the wavy coulter such that the outer periphery of the wavy coulter deviates from flat in a plurality of waves, each wave comprising a crest and a valley entirely around the outer periphery of the wavy coulter; (d) providing a maximum deviation from flat for each crest and each valley equal to one of the plurality of distinct amplitudes at the outer periphery thereof; and (e) assuring that at least one wave exhibits a maximum deviation of each of the plurality of distinct amplitudes at the outer periphery thereof.