Patents by Inventor Elizabeth T. Singewald

Elizabeth T. Singewald 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).

  • Method to make circular-knit elastic fabric comprising spandex and hard yarns
    Patent number: 6776014
    Abstract: Circular-knit, elastic, single-knit jersey fabric, of spun and/or continuous filament hard yarns with bare spandex plated in every course, has a cover factor in the range of 1.3 to 1.9, a basis weight from 140 to 240 g/m2, an elongation of 60% or more and low shrinkage. The circular knit, single-knit jersey fabric is produced by maintaining the draft of the spandex at or below 2× (100% elongation) and maintaining the finishing and drying temperature(s) below the spandex heat set temperature. The knit fabric meets the end-use specifications without heat setting.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: August 17, 2004
    Assignee: Invista North America S.a.r.l.
    Inventors: Graham Laycock, Raymond S. P. Leung, Elizabeth T. Singewald