Patent ID: 9723790
Date: 2017-08-08
CPC Classifications: A01D,A01F

Claim:
1. A weed seed devitalization arrangement for receiving air and material entrained with weed seeds, the arrangement including: one or more stationary substantially circular array of weed seed impact members, the weed seed impact members of the stationary array having an intended impact surface arranged so as to impact weed seeds passing into the stationary substantially circular array and each impact member being orientated to allow air, material and weed seed to pass radially between adjacent impact members; and one or more rotatable substantially circular array of weed seed impact members and each impact member being orientated to allow air, material and weed seed to pass between adjacent impact members, the rotatable array movable about a common axis with respect to a stationary substantially circular array of weed seed impact members, wherein the intended impact surface, of an impact member of the stationary array, is orientated to the reverse direction in which the rotor array rotates, so as to either impact and direct a weed seed to pass through radially the stationary array or to impact and direct a weed seed radially inward of the stationary array regardless of the width and length of the weed seed and wherein air, material and impacted weed seed passes radially through each array of impact members.