Patents by Inventor Popko Julius Westerhuis

Popko Julius Westerhuis 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).

  • Process for the manufacture of flat-shaped articles
    Patent number: 3936544
    Abstract: A process is disclosed for manufacturing flat shaped articles made of individual fibers such as paper, woven fabric, knitted fabric and non-woven fabric impregnated with an aqueous dispersion of a polymeric binder including a sensitizing agent for causing the dispersion to coagulate at a temperature substantially below 100.degree.C. The binder coagulates at a temperature substantially below 100.degree.C. and the method includes impinging live steam on the major surfaces of the article to suddenly coagulate the binder, thereby fixing its position within the fabric and preventing its migration to the fabric's surfaces. One or more adjustable position steam nozzles are used for this purpose.
    Type: Grant
    Filed: May 10, 1974
    Date of Patent: February 3, 1976
    Assignee: Feldmuehle Aktiengesellschaft
    Inventors: Helmut Kriebitz, Theodor Ploetz, Popko Julius Westerhuis