Patents by Inventor Hans P. Siegers

Hans P. Siegers 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 for cottonwool tampon
    Patent number: 4624668
    Abstract: A method of making a cottonwool tampon incorporating a recovery cord in which a length of cottonwool strip is wrapped in a fluff-free covering material without any accumulations of material or seams being necessary or being formed at the front end. According to the invention, a curtain of covering material is draped into the feed path of the length of cottonwool strip in such a way that, as the cottonwool strip advances, the covering material is folded around its leading edge and is applied to the upper and lower surfaces of the length of the cottonwool strip.
    Type: Grant
    Filed: January 23, 1984
    Date of Patent: November 25, 1986
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventor: Hans P. Siegers