Patents by Inventor Bertil Josefsson

Bertil Josefsson 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: 4422464
    Abstract: Method and apparatus for the forming of hair. At the forming a strand of hair is drawn into a chamber (24) from an orifice (29) thereof by means of an air stream flowing inwards from said orifice. The chamber is shaped to produce an intended curvature of the strand of hair. By means of introduction of heated air through openings (28) close to the orifice (29) of the duct, the horny substances of the hair will be softened so that a plastic bend of the hair is obtained. The strand of hair being subjected to heating during a predetermined period of time, which is adjusted to the softening process of the horny substance and carried out by a heating means (19) for the supplied air by means of an automatic time controlling device (64) being maintained in activated condition.
    Type: Grant
    Filed: March 27, 1981
    Date of Patent: December 27, 1983
    Assignee: NPI New Products Investment AB
    Inventor: Bertil Josefsson