Patents by Inventor Wayne D. Earl

Wayne D. Earl has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Methods and systems for positively feeding yarn to circular knitting machines
    Patent number: 6151925
    Abstract: A method for positively feeding yarn to a circular knitting machine includes adjusting a variable drive mechanism to vary the rate at which yarn is positively fed from a plurality of positive feed units to a circular knitting machine while the machine is operating. Because the positive yarn feed rate is adjustable while the circular knitting machine is operating, the time and labor required to produce knitted products is reduced. The positive yarn feed rate and the yarn tension of a circular knitting machine can be adjusted while the machine is operating. A controller coupled to the variable drive mechanism and the central stitch cam adjustment adjusts the positive yarn feed rate and the yarn tension.
    Type: Grant
    Filed: January 29, 1999
    Date of Patent: November 28, 2000
    Assignee: International Machinery Sales, Inc.
    Inventors: David Earl, Wayne D. Earl