Patents Assigned to Eurofilters N.V.
  • Patent number: 8080076
    Abstract: The invention is directed to a nonwoven layer for a filter, in particular, for a vacuum cleaner bag, wherein at least one region of the nonwoven layer, the region having a predetermined thickness and a predetermined area, has an average pore size smaller than 50 ?m and comprises fibers being bonded together such that a movement of the fibers relative to each other in a direction parallel to the surface of the layer is inhibited. The invention is further directed to a filter medium, in particular, for a vacuum cleaner bag, comprising a filter structure wherein a surface or an interface of the filter structure is provided with a filter paper layer having a smaller surface area than the filter structure.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: December 20, 2011
    Assignee: Eurofilters N.V.
    Inventors: Ralf Sauer, Jan Schultink
  • Patent number: 8070858
    Abstract: A filter bag for a vacuum cleaner includes at least three layers, at least two layers which include at least one nonwoven fabric layer and one nonwoven fibre layer being connected by a weld, a high bulk resulting due to the small number of welds per surface area.
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: December 6, 2011
    Assignee: Eurofilters N.V.
    Inventors: Jan Schultink, Ralf Sauer
  • Patent number: 8052769
    Abstract: A filter bag for a vacuum cleaner includes a tubular bag made of a casing which has at least one nonwoven layer. The casing has a first end region which is sealed at least partially and a second sealed end region situated opposite the first end region. The first end region is folded and forms a base.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: November 8, 2011
    Assignee: Eurofilters N.V.
    Inventors: Jan Schultink, Ralf Sauer
  • Patent number: 8002862
    Abstract: Described is a filter bag for a vacuum cleaner which may include a tubular bag with a closed free end area and an opposed, at least partially closed area as well as with a retaining plate. The bag is made from a bag material having at least one non-woven layer, and the at least partially closed area is folded forming a bottomPlies of the bag material which lie the one above the other are formed in areas, and is at least partially closed by a weld seam extending centrally in the bottom, the plies of the bag material which lie the one above the other being at least partially connected to one another.
    Type: Grant
    Filed: October 15, 2004
    Date of Patent: August 23, 2011
    Assignee: Eurofilters N.V.
    Inventor: Jan Schultink
  • Patent number: 7744680
    Abstract: Described is a vacuum-cleaner bag which is made of an air-permeable filter material and forms a closed dust-collecting chamber, the vacuum-cleaner bag containing a material which can be whirled up under a given air flow.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: June 29, 2010
    Assignee: Eurofilters N.V.
    Inventors: Jan Schultink, Ralf Sauer
  • Publication number: 20090266233
    Abstract: A filter bag for a vacuum cleaner made of a composite material comprising at least three layers, at least two layers which comprise a nonwoven fabric layer and at least one nonwoven fibre layer being connected by a weld.
    Type: Application
    Filed: April 10, 2007
    Publication date: October 29, 2009
    Applicant: Eurofilters N.V.
    Inventors: Jan Schultink, Ralf Sauer
  • Patent number: 7582142
    Abstract: Described is an adsorbing agent for dust-collecting filters, especially for adsorbing odors. The adsorbing agent may include fibers, flakes and/or granulate as a supporting material onto which a powdery adsorption material is applied superficially.
    Type: Grant
    Filed: February 7, 2005
    Date of Patent: September 1, 2009
    Assignee: Eurofilters N.V.
    Inventors: Jan Schultink, Ralf Sauer
  • Publication number: 20090090092
    Abstract: A filter bag for a vacuum cleaner includes a tubular bag made of a casing which has at least one nonwoven layer. The casing has a first end region which is sealed at least partially and a second sealed end region situated opposite the first end region. The first end region is folded and forms a base.
    Type: Application
    Filed: December 15, 2006
    Publication date: April 9, 2009
    Applicant: Eurofilters N.V.
    Inventors: Jan Schultink, Ralf Sauer