Patents by Inventor Silvano Cesca

Silvano Cesca 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).

  • Continuous bi-compound acrylic bulky yarn and the method of the production of same
    Patent number: 3937000
    Abstract: A continuous bi-compound bulky yarn consisting of a pair of acrylic polymeric components differing from each other in some of their properties is prepared by spinning those components in solution to produce a spun yarn which is drawn and then, successively, passed through a first oven heated to a temperature in the range of 130.degree.-250.degree.C, subjected to a false twist by means of a rotating spindle, passed through a second oven heated to a temperature in the range of 120.degree.-240.degree.C, and wound on a holder.
    Type: Grant
    Filed: September 15, 1972
    Date of Patent: February 10, 1976
    Assignee: Snam Progetti S.p.A.
    Inventors: Franco Cognigni, Silvano Cesca