Patents by Inventor Erich de Riz

Erich de Riz 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 producing elastic bands for the clothing industry
    Patent number: 6704979
    Abstract: Method for producing elastic tapes from a fabric web having at least partially synthetic fibers or filaments, especially a nonwoven fabric web, for use in the garment industry, one or a plurality of industrially produced webs (1, 2; 16) being laid on top of one another and at their open edges (3, 4; 5, 6; 18, 19) being joined to one another and a tube (11) being formed; and wall (21) of the tube (11) is cut open slantwise, so that a new, more elastic fabric web (22) is created, which is cut to tapes (25) in the longitudinal direction (26).
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: March 16, 2004
    Assignee: Carl Freudenberg KG
    Inventors: Erich de Riz, Robert Devos, Ingeborg Schuster
  • Stiffening insert for wearing apparel
    Patent number: 4364125
    Abstract: A stiffening insert of shaped stiff material having openings parallel to the long axis of the material is disclosed. The openings present a serrated outline. The inserts may be applied to collars, cuffs, waist bands, clothes trim and other parts of apparel which need to be stiffened.
    Type: Grant
    Filed: March 24, 1981
    Date of Patent: December 21, 1982
    Assignee: Firma Carl Freudenberg
    Inventors: Erich de Riz, Wolfgang Ringel