Patents by Inventor Jacobus Maurits Van Dort

Jacobus Maurits Van Dort 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 of manufacturing twistless yarn and yarn obtained by this method
    Patent number: 4107914
    Abstract: In a method for the manufacture of twistless or substantially twistless yarn a sliver or a roving of staple fibres is used as basic material. The sliver or the roving is wetted by a liquid mixture containing a latent solvent for at least a portion of the staple fibre material and drafted in a wet condition to form a thinner fibre strand, which is subsequently false twisted and bonded. The fibre strand is bonded by activation of the latent solvent under an increased temperature, and dried under evaporation of the solvent.
    Type: Grant
    Filed: March 28, 1977
    Date of Patent: August 22, 1978
    Assignee: Hollandse Signaalapparaten B.V.
    Inventor: Jacobus Maurits Van Dort
  • Method of manufacturing twistless yarn and the product thereof
    Patent number: 3945186
    Abstract: In the manufacture of twistless yarn a potentially adhesive continuous filament yarn is added to an assembly of staple fibres. The fibre mixture so obtained is supplied with a solvent which, brings the potentially adhesive filament yarn into a plastic state and, enables wet drafting of the staple fibre component. After the drafting process the staple fibres are bonded.
    Type: Grant
    Filed: February 15, 1974
    Date of Patent: March 23, 1976
    Assignee: Hollandse Signaalapparaten B.V.
    Inventor: Jacobus Maurits Van Dort