Patents by Inventor Melvin Usdan

Melvin Usdan 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).

  • Patent number: RE29572
    Abstract: .[.A process for manufacturing a balanced synthetic yarn, i.e., a yarn having relatively no torque, including the steps of conventionally texturizing yarn formed of thermoplastic filaments, subjecting the yarn to a subsequent heat treatment, and twisting the yarn with a relatively low twist in the opposite direction from the twist imparted to the yarn during the texturizing process..]. .Iadd.A process for the preparation of low-torque textile yarn by imparting high twist to a thermo plastic yarn in one direction and heat setting, detwisting to impart an opposite torque to the yarn, applying a second heat setting to the yarn and then low twisting the yarn in the direction of the torque. .Iaddend.
    Type: Grant
    Filed: January 12, 1977
    Date of Patent: March 14, 1978
    Assignee: Perfect Thread Company, Inc.
    Inventor: Melvin Usdan