Patents by Inventor John K. Wain

John K. Wain 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).

  • Joining yarns
    Patent number: 4229935
    Abstract: Yarn portions, particularly yarn ends, are joined together without using a knotting technique by positioning the yarn portions alongside each other and introducing such portions through an inlet of apparatus having two passages extending separately away from the inlet. Fluid flow is directed alternately along one then the other of the passages so as to move the yarn portions backwards and forwards between two passages so as to cause the yarn portions to be joined or spliced together.
    Type: Grant
    Filed: March 14, 1979
    Date of Patent: October 28, 1980
    Inventor: John K. Wain