Patents Assigned to Wool Research Organization
  • Patent number: 4274346
    Abstract: A looper for a tufting machine for producing cut-pile has a base portion, a forward hook-shaped end and a yarn engaging portion around which a loop of yarn is formed extending between the base portion and the forward end, the yarn engaging portion having smooth contours adjacent only the forward end of the looper, the remainder of the length of the yarn engaging portion having a cutting edge formed thereon for effecting the cutting upon cooperation with an independently operable cutting blade of at least one of a series of accumulated loops collected on the yarn engaging portion. Thus, any catching, cutting or breaking of the loop of yarn before being cut by the cutter blade is avoided.
    Type: Grant
    Filed: August 10, 1978
    Date of Patent: June 23, 1981
    Assignee: Wool Research Organization
    Inventor: Garth A. Carnaby