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).

  • Publication number: 20220378262
    Abstract: The invention comprises a vacuum cleaner filter bag (1), comprising a bag wall (2) and a retaining plate (3), wherein the retaining plate (3) is connected to an at least partially cylindrical connection piece (4) which extends in a direction perpendicular to a passage opening (5) formed in the retaining plate (3), wherein the bag wall (2) is connected with the lateral surface of the connection piece (4) along the circumference thereof.
    Type: Application
    Filed: October 28, 2020
    Publication date: December 1, 2022
    Applicant: Eurofilters N.V.
    Inventors: Ralf Sauer, Jan Schultink
  • Patent number: 11504662
    Abstract: The invention relates to a vacuum-cleaner filter bag comprising a wall made of an air permeable material and surrounding an inner chamber, and an inlet opening introduced into the wall. The vacuum-cleaner filter bag is characterized in that the air permeable material comprises at least one layer made from a non-woven fabric and/or a layer made from a fiber web which comprises fibers or is made from fibers which are made from a recycled plastic or a plurality of recycled plastics.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: November 22, 2022
    Assignee: EUROFILTERS N.V.
    Inventors: Ralf Sauer, Jan Schultink
  • Publication number: 20220354326
    Abstract: The invention comprises a vacuum cleaner filter bag comprising a base element, a cover element having an inflow opening and a retaining plate surrounding the inflow opening at least in part is connected to the cover element, and at least four intermediate elements which are arranged between the base element and the cover element and each comprise a passage opening aligned with the inflow opening of the cover element, where the intermediate elements are configured as filter elements and each comprise nonwoven fabric and/or fibrous nonwoven, where the intermediate element directly adjoining the base element is connected to the base element along the outer edge of the intermediate element or along the edge of the passage opening, and where adjacent intermediate elements are connected to each other alternately along the edge of the passage openings and along their outer edge.
    Type: Application
    Filed: June 15, 2020
    Publication date: November 10, 2022
    Inventors: Ralf SAUER, Jan SCHULTINK
  • Publication number: 20220220319
    Abstract: The present application relates to a thermally expandable preparation containing at least one binder, at least one physical blowing agent, at least two polysaccharides and water, to a method for soundproofing using such preparations, and to the corresponding use of these preparations.
    Type: Application
    Filed: February 1, 2022
    Publication date: July 14, 2022
    Inventors: Ralf Sauer, Michael Klotz, Fiona Cappel
  • Publication number: 20220162401
    Abstract: The present invention relates to a crosslinking agent for polymeric systems, which crosslinking agent comprises elemental sulfur, phenolic resin, thiazole disulfide compounds and metal salts based on thiocarbamates, and to the use thereof in vehicle manufacture.
    Type: Application
    Filed: February 9, 2022
    Publication date: May 26, 2022
    Inventors: Michael Klotz, Ralf Sauer, Fiona Cappel
  • Publication number: 20220072457
    Abstract: The invention comprises a vacuum cleaner filter bag with a bag wall, comprising: a support layer comprising recycled polyethylene terephthalate, rPET; a fine filter layer of a meltblown non-woven fabric comprising polypropylene, PP, PET and/or recycled polypropylene, rPP; and a capacity layer of a non-woven fabric comprising rPET, recycled textile material, TLO, and/or rPP; wherein the bag wall moreover comprises at least one intermediate layer formed of a non-woven fabric or a fibrous web and comprising rPP as a main component; and wherein the at least one intermediate layer is arranged between the support layer and the fine filter layer and/or between the fine filter layer and the capacity layer.
    Type: Application
    Filed: December 16, 2019
    Publication date: March 10, 2022
    Inventors: Ralf SAUER, Jan SCHULTINK
  • Publication number: 20220033660
    Abstract: The present application relates to a preparation that is pumpable, thermally curable and expandable at application temperatures, typically in the range of 30 to 120° C., and contains at least one solid rubber, at least one liquid rubber, at least one thermally activatable blowing agent and a curing agent system containing at least one peroxide and at least one quinone, quinone dioxime or dinitrosobenzene, to a method for stiffening structural components having thin-walled structures using such preparations or for sealing cavities in structural components using such preparations, and to the use of these preparations for stiffening such structures or for sealing cavities in structural components.
    Type: Application
    Filed: October 14, 2021
    Publication date: February 3, 2022
    Inventors: Ralf Sauer, Michael Klotz, Takehito Yamada
  • Publication number: 20210361133
    Abstract: The invention relates to a retainer plate for a vacuum cleaner filter bag, comprising at least one sealing element, a base plate in which a passage opening is formed, and a centering device which extends at least partly around the periphery of the passage opening, said centering device having at least one first spring element which, upon deformation in the radial direction, exerts a restoring force directed counter to the deformation.
    Type: Application
    Filed: February 22, 2019
    Publication date: November 25, 2021
    Applicant: Eurofilters Holding N.V.
    Inventors: Ralf SAUER, Jan Schultink
  • Publication number: 20210181054
    Abstract: A method of leak-tightness testing a motor vehicle body that includes: a. fitting of electrically conductive contacts to at least one inner side of the motor vehicle body, and b. applying an electrical voltage between the contacts, c. applying water to at least a portion of at least one outer side of the motor vehicle body, and d. monitoring the voltage applied between the contacts to detect any drop in voltage that may occur, wherein at least one of the electrically conductive contacts comprises a lacquer composition comprising an organic binder and at least one electrically conductive additive.
    Type: Application
    Filed: August 21, 2019
    Publication date: June 17, 2021
    Inventors: Christian Bischoff, Ralf Sauer, Manuel Seibold
  • Patent number: 10939788
    Abstract: The invention relates to a retaining plate (2) for a vacuum cleaner filter bag, comprising a base plate in which a passage opening (3) is formed, and a sealing flap (5) for sealing the passage opening (3), wherein the sealing flap (5) is sealed via an elastic element (7; 10) in the sealed position, and wherein a cover element (9) is provided which is connected to the base plate, the sealing flap (5) and/or the elastic element (7) and partially or completely covers the elastic element (7).
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: March 9, 2021
    Assignee: EUROFILTERS HOLDING N.V.
    Inventors: Ralf Sauer, Jan Schultink
  • Patent number: 10925450
    Abstract: The present invention relates to methods for the production of an improved integral connection of a retaining plate to the wall of a vacuum cleaner filter bag. According to a first variant, the retaining plate is not applied directly on the wall of the vacuum cleaner filter bag but rather a textile material is disposed between retaining plate and the wall. The connection of the retaining plate and the wall of the vacuum cleaner filter bag is thereby effected via the textile material. According to a second variant, in regions between retaining plate and wall of the vacuum cleaner filter bag, a film made of a thermoplastic material is disposed between wall of the vacuum cleaner filter bag and retaining plate. The connection of the retaining plate and the wall of the vacuum cleaner filter bag is thereby effected via the film. According to a third variant, the retaining plate is connected directly to the wall of the vacuum cleaner filter bag.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: February 23, 2021
    Assignee: EUROFILTERS HOLDING N.V.
    Inventors: Jan Schultink, Ralf Sauer
  • Patent number: 10905299
    Abstract: The invention relates to a retaining plate (2) for a vacuum cleaner filter bag, comprising a base plate in which a passage opening (3) is formed, and a sealing flap (5) for sealing the passage opening (3), wherein the sealing flap (5) is biased in the sealed position via an elastic element (7), wherein the elastic element (7) is arranged in front of the sealing flap (5) when viewed in the sealing direction; and wherein the elastic member (7) comprises an elastomer, or the elastic member (7) comprises a coil spring (9), wherein the coil spring (9) is at least partially enclosed by a sheath (10).
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: February 2, 2021
    Assignee: EUROFILTERS HOLDING N.V.
    Inventors: Ralf Sauer, Jan Schultink
  • Publication number: 20200390305
    Abstract: The present invention provides a holding plate for a vacuum cleaner filter bag, comprising a base plate made of a plastic and having a passage opening formed therein, and a sealing membrane made of an elastic plastic material, which covers the passage opening and which is connected to the base plate, wherein the sealing membrane has a slit in the area of the passage opening, wherein the sealing membrane is, at least sectionwise, provided with a thickened area along the slit.
    Type: Application
    Filed: December 21, 2017
    Publication date: December 17, 2020
    Applicant: Eurofilters Holding N.V.
    Inventors: Ralf Sauer, Jan Schultink
  • Publication number: 20200390304
    Abstract: The invention relates to a retainer plate for a vacuum cleaner filter bag, comprising a base plate in which a passage opening is formed, and a sealing element which is arranged at the edge of the passage opening, wherein the sealing element comprises at least one extruded film made of a thermoplastic elastomer, TPE.
    Type: Application
    Filed: February 20, 2019
    Publication date: December 17, 2020
    Applicant: Eurofilters Holding N.V.
    Inventors: Ralf Sauer, Jan Schultink
  • Patent number: 10806316
    Abstract: The invention relates to a device for a vacuum cleaner filter bag comprising a holding device with a passage opening and a closure device for closing the passage opening of the holding device, wherein the closure device comprises a closure flap and an elastic element made of a cross-linked silicone elastomer, and the elastic element is pretensioned in a state in which the closure flap closes the passage opening of the holding device.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: October 20, 2020
    Assignee: EUROFILTERS HOLDING N.V.
    Inventors: Ralf Sauer, Jan Schultink
  • Patent number: 10736478
    Abstract: The present invention relates to a vacuum cleaner robot comprising a floor nozzle supported on wheels and a dust collection unit, wherein the floor nozzle comprises a driving device for driving at least one of the wheels of the floor nozzle, wherein one of the wheels, a plurality of or all of the wheels of the floor nozzle are omnidirectional wheels, wherein the floor nozzle comprises a base plate with a base surface, which, when the vacuum cleaner robot is in operation, faces the surface to be cleaned, the base plate having provided therein an air flow channel, which extends parallel to the base surface and through which air to be cleaned enters the floor nozzle, and wherein the floor nozzle comprises a rotating means for rotating the air flow channel about an axis perpendicular to the base surface.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: August 11, 2020
    Assignee: EUROFILTERS HOLDING N.V.
    Inventors: Ralf Sauer, Jan Schultink
  • Patent number: 10722090
    Abstract: The present invention relates to an autonomously operable vacuum cleaner that has a modular design. The vacuum cleaner in this respect comprises a cleaning head module as well as a separate canister module. The cleaning head module and the canister module are in this respect connected to one another via a hose so that dust sucked in via the cleaning head module can be conveyed into the canister module.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: July 28, 2020
    Assignee: EUROFILTERS N.V.
    Inventors: Jan Schultink, Ralf Sauer
  • Patent number: 10674883
    Abstract: The invention relates to a vacuum cleaner robot comprising a dust collector arrangement mounted on wheels, a suction hose and a floor nozzle mounted on wheels, where the floor nozzle is fluidically connected to the dust collector arrangement via the suction hose, also comprising a motorized fan unit for suctioning an air stream in through the floor nozzle, where the motorized fan unit is arranged between the floor nozzle and the dust collector arrangement in such a manner that an air stream suctioned in through the floor nozzle flows through the motorized fan unit and into the dust collector arrangement. where the dust collector arrangement comprises a drive device in order to drive at least one of the wheels of the dust collector arrangement, and where the floor nozzle comprises a drive device in order to drive at least one of the wheels of the floor nozzle.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: June 9, 2020
    Assignee: EUROFILTERS HOLDING N.V.
    Inventors: Ralf Sauer, Jan Schultink
  • Publication number: 20200087532
    Abstract: The present invention relates to compositions containing at least one reactive binder, at least one curing agent and/or accelerator, at least one thermally activatable blowing agent and at least one light-weight filler, wherein at least one expanded particle of at least one glass-rich volcanic rock with a closed outer shell is contained as a light-weight filler. The invention also relates to a method for stiffening and/or reinforcing components with thin-walled structures with a corresponding composition as well as to correspondingly produced components.
    Type: Application
    Filed: November 25, 2019
    Publication date: March 19, 2020
    Inventors: Ralf Sauer, Michael Klotz, Thomas Zahn, Peter Born
  • Publication number: 20200060489
    Abstract: The present invention relates to vacuum cleaner filter bags composed of waste products of the textile industry. In addition, possibilities of use for waste products of the textile industry for vacuum cleaner filter bags are provided. The vacuum cleaner filter bag comprising a wall surrounding an inner space and composed of an air-permeable material and an inlet opening introduced into the wall, characterized in that the air-permeable material comprises at least one layer of a nonwoven that comprises fibrous and/or pulverulent recycled textile material and/or cotton linters, with the specific volume of the layer of the nonwoven amounting to at least 20 cm3/g.
    Type: Application
    Filed: September 6, 2017
    Publication date: February 27, 2020
    Inventors: Ralf Sauer, Jan Schultink