Patents by Inventor Heinrich Laun

Heinrich Laun 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: 6398895
    Abstract: The invention relates to a structured textile material made of at least two different, needled base nonwoven fabrics. The base nonwoven fabrics have a structure obtained by needling from at least one side. The needles used for the structure needling are fork needles or crown needles, and the depth of the forks and barbs, respectively, is so selected that, when piercing through, they completely fill up with fibers of the base nonwoven fabric facing the needles. The textile material have unmixed, pure fibers in the pattern, in the background and on the reverse side.
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: June 4, 2002
    Assignee: Firma Carl Freudenberg
    Inventors: Karlheinz Stein, Heinrich Laun, Michel Pässler
  • Publication number: 20020029445
    Abstract: The invention relates to a structured textile material made of at least two different, needled base nonwoven fabrics. The base nonwoven fabrics have a structure obtained by needling from at least one side. The needles used for the structure needling are fork needles or crown needles, and the depth of the forks and barbs, respectively, is so selected that, when piercing through, they completely fill up with fibers of the base nonwoven fabric facing the needles. The textile material have unmixed, pure fibers in the pattern, in the background and on the reverse side.
    Type: Application
    Filed: July 19, 2001
    Publication date: March 14, 2002
    Inventors: Karlheinz Stein, Heinrich Laun, Michel Passler
  • Patent number: 6287407
    Abstract: The invention relates to a structured textile material made of at least two different, needled base nonwoven fabrics. The base nonwoven fabrics have a structure obtained by needling from at least one side. The needles used for the structure needling are fork needles or crown needles, and the depth of the forks and barbs, respectively, is so selected that, when piercing through, they completely fill up with fibers of the base nonwoven fabric facing the needles. The textile material have unmixed, pure fibers in the pattern, in the background and on the reverse side.
    Type: Grant
    Filed: July 2, 1998
    Date of Patent: September 11, 2001
    Assignee: Firma Carl Freudenberg
    Inventors: Karlheinz Stein, Heinrich Laun, Michel Pässler
  • Patent number: 5725927
    Abstract: A reusable cleaning cloth for damp and dry cleaning of surfaces. The cloth is made of a textile base layer of non-woven fibers and, on the surface that provides the cleaning action, a plurality of filament loops which project out of this surface. The filament loops are concentrated in spaced apart surface regions separate from one another, like islands, by non-linear border lines delineating channels that are essentially free of filament loops. In its finished form, the island-like areas with the filament loops project 0.5 to 5 mm out of the base surface. The islands are aligned to be equidirectionally staggered relative to one another, each having a length of 4 to 50 mm with a corresponding width of 2 to 10 mm. The channels which separate the islands are as broad as one to two of these islands in the region between the adjacent long sides of the islands and narrow in the region of the adjacent ends of the islands.
    Type: Grant
    Filed: May 23, 1996
    Date of Patent: March 10, 1998
    Assignee: Firma Carl Freudenberg
    Inventors: Jan-Peter Zilg, Heinrich Laun, Michel Passler