Patents by Inventor Ralf Sauer

Ralf Sauer 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: 8382871
    Abstract: A vacuum cleaner filter bag with an inlet opening including a deflection device and an air-permeable material is provided. The deflection device is arranged in the interior of the vacuum cleaner filter bag in the area of the inlet opening and which is implemented such that an air current flowing in through the inlet opening can be deflected by the deflection device. The air-permeable material layer is arranged in the interior of the vacuum cleaner filter bag, is connected to the vacuum cleaner filter bag at least one point, and includes at least one part that is not connected to the vacuum cleaner filter bag and that includes part of the boundary of the material layer.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: February 26, 2013
    Assignee: Eurofilters Holding N.V.
    Inventors: Ralf Sauer, Jan Schultink
  • Publication number: 20130036717
    Abstract: The invention comprises a vacuum cleaner filter bag having at least one side fold formed by two fold legs, wherein the vacuum cleaner filter bag is designed as a tubular bag, wherein, in a turned-in state, the at least one side fold has at least three edges, wherein two of the edges are formed by a respective weld seam, and wherein the side fold can be turned out with the edges formed by a weld seam.
    Type: Application
    Filed: February 16, 2011
    Publication date: February 14, 2013
    Applicant: Eurofilters Holding N.V.
    Inventors: Ralf Sauer, Jan Schultink
  • Patent number: 8372174
    Abstract: A vacuum cleaner filter bag includes (a) a bag wall made of filter material, an inlet opening being provided in the bag wall, (b) a deflecting strip for deflecting an air flow entering through the inlet opening, the deflecting strip being disposed in the interior of the vacuum cleaner filter bag, (c) a material strip which is disposed in the interior of the vacuum cleaner filter bag and connected to the bag wall, at least a part of the edge of the material strip not being connected to the bag wall, and (d) a spacing means which is configured such that the material strip is at a spacing at least partially from the bag wall during operation of the vacuum cleaner filter bag.
    Type: Grant
    Filed: March 3, 2009
    Date of Patent: February 12, 2013
    Assignee: Eurofilters Holding N.V.
    Inventors: Jan Schultink, Ralf Sauer
  • Publication number: 20120272628
    Abstract: A flat bag is for vacuum cleaners. The bad includes, in the interior thereof, at least one diffuser which forms an intermediate plane and is made of strips of material and/or sheet materials with oblong-shaped flow openings. Such flat bags are distinguished by excellent dust storage capacity and extension of the useful life.
    Type: Application
    Filed: May 17, 2010
    Publication date: November 1, 2012
    Applicant: Eurofilters Holding N.V.
    Inventors: Jan Schultink, Ralf Sauer
  • Publication number: 20120216494
    Abstract: The invention relates to a holding plate for a vacuum cleaner filter bag having a bag wall, the holding plate comprising a base plate made of a first plastic material with a passage opening, and a connecting element that is connected to the base plate by a material bond and is made of a second plastic material, for connecting the base plate to the bag wall by a material bond, in particular by means of ultrasonic welding, characterized in that the connecting element is arranged an the side of the base plate that is to be connected to the bag wall.
    Type: Application
    Filed: September 21, 2010
    Publication date: August 30, 2012
    Inventors: Jan Schultink, Ralf Sauer
  • Publication number: 20120216493
    Abstract: The Invention relates to a vacuum cleaner filter bag comprising a bag wall, wherein the bag wall comprises precisely one nonwoven layer in the form of a melt-spur microfibrous nonwoven layer.
    Type: Application
    Filed: September 21, 2010
    Publication date: August 30, 2012
    Inventors: Jan Schultink, Ralf Sauer
  • Publication number: 20120210684
    Abstract: The invention relates to a vacuum cleaner filter bag (101, 201) comprising a bag wall (104), wherein the bag wall (104) comprises at least one biodegradable nonwoven layer.
    Type: Application
    Filed: September 21, 2010
    Publication date: August 23, 2012
    Inventors: Jan Schultink, Ralf Sauer
  • Publication number: 20120211625
    Abstract: The invention relates to a retaining plate for a vacuum-cleaner filter bag comprising a through-passage opening and a closure flap for closing the through-passage opening, wherein the closure flap comprises a first region comprising a first material of a first hardness and a second region comprising a second material of a second hardness, wherein the second hardness is at a lower level than the first hardness, wherein the second region is arranged, at least in part, on the periphery of the closure flap, and wherein the second material, at least in part, has a thickness of less than 1 mm.
    Type: Application
    Filed: September 23, 2010
    Publication date: August 23, 2012
    Inventors: Jan Schultink, Ralf Sauer
  • Publication number: 20120186204
    Abstract: A block-base bag is for vacuum cleaners. The bag includes, in the interior thereof, a diffuser made of strips of material and/or sheet materials with oblong-shaped flow openings. Such bags are distinguished by excellent dust storage capacity and extension of the useful life.
    Type: Application
    Filed: June 16, 2010
    Publication date: July 26, 2012
    Inventors: Jan Schultink, Ralf Sauer
  • Publication number: 20120131890
    Abstract: A flat bag for vacuum cleaners includes, in the interior thereof, at least two diffusers made of strips of material and/or sheet materials with oblong-shaped flow openings. Such flat bags are distinguished by excellent dust storage capacity and extension of the useful life.
    Type: Application
    Filed: June 11, 2010
    Publication date: May 31, 2012
    Inventors: Jan Schultink, Ralf Sauer
  • Patent number: 8157879
    Abstract: A vacuum cleaner filter bag with an inlet opening and a deflection device arranged in the area of the inlet opening, which is configured in such a way that an air stream flowing through the inlet opening can be deflected.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: April 17, 2012
    Assignee: Eurofilters Holding N.V.
    Inventors: Ralf Sauer, Jan Schultink
  • Patent number: 8152879
    Abstract: A filter bag for a vacuum cleaner made of a composite material including at least three layers, at least two layers which include a nonwoven fabric layer and at least one nonwoven fiber layer being connected by a weld.
    Type: Grant
    Filed: April 10, 2007
    Date of Patent: April 10, 2012
    Assignee: Eurofilters N.V.
    Inventors: Jan Schultink, Ralf Sauer
  • Patent number: 8137500
    Abstract: Sprayable low-viscosity rubber damping compounds based on liquid rubbers or elastomers and vulcanization agents, which contain small quantities of structure-reinforcing fiber fillers, are notable for the absence of previously usual solid rubbers and have a very low viscosity in the application state. Acoustic compounds of this kind are sprayable with the aid of fully automatic application systems, and are preferably processed at the basic body stage in vehicle construction.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: March 20, 2012
    Assignee: Henkel KGaA
    Inventors: Ralf Sauer, Peter Born
  • Patent number: 8097054
    Abstract: A dust filter bag is in the shape of a flat bag for a vacuum cleaner, which is formed from a first layer and a second layer made of a weldable material. The layers are welded together circumferentially along the circumference thereof.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: January 17, 2012
    Assignee: Eurofilters N. V.
    Inventors: Jan Schultink, Ralf Sauer
  • Patent number: 8092562
    Abstract: A holding plate for a vacuum cleaner bag is provided. The holding plate includes a base plate with an opening, a closing element pivotably arranged on the base plate, and a spring element having a bending angle (B) that upon pivoting of the closing element in an opening direction from a first position to a second position in which the opening is opened, in a predetermined pivoting angle range that is smaller than the corresponding opening angle (* ?) of the closing element, wherein the closing element can be brought from the second position into the first position by the restoring force of the spring element in the direction opposite to the opening direction, and wherein the spring element is located behind the locking element in the opening direction.
    Type: Grant
    Filed: April 23, 2007
    Date of Patent: January 10, 2012
    Assignee: Eurofilters Holding N.V.
    Inventors: Ralf Sauer, Jan Schultink
  • 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: 8066803
    Abstract: The invention relates to vacuum cleaner filter bag with a bag wall made of a filter material, wherein the bag wall and/or the interior of the vacuum cleaner filter bag comprise fibres containing a biopolymer and having an antibacterial effect and/or a powder produced from a biopolymer and having an antibacterial effect.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: November 29, 2011
    Assignee: Eurofilters Holding N.V.
    Inventors: Ralf Sauer, Jan Schultink
  • 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
  • Publication number: 20110203239
    Abstract: The invention relates to a vacuum cleaner filter bag, comprising an inlet opening (3), a filter bag material which has an inner layer of nonwoven material (10) at least in the region of the inlet opening, and a holding plate (2) which is arranged on the outside of the filter bag in the region of the inlet opening, can be attached to a vacuum cleaner holding means for securing the vacuum cleaner filter bag and on which a closure device (4) for closing the inlet opening is provided, wherein the nonwoven material, in the region of the inlet opening, has a surface (20) which is provided in such a manner that the formation of a filter cake on said surface is avoided.
    Type: Application
    Filed: July 14, 2008
    Publication date: August 25, 2011
    Inventors: Ralf Sauer, Jan Schultink