Patents Assigned to Carl Freudenberg
  • Filter with perforated separator plates
    Patent number: 11071936
    Abstract: A filter for cleaning air includes: a housing; layers of a filter medium, the layers being arranged in the housing; and separator plates. One separator plate is arranged between each two layers of the filter medium. The separator plates are provided with a perforation. In an embodiment, the separator plates are fluted, corrugated, or folded.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: July 27, 2021
    Assignee: CARL FREUDENBERG KG
    Inventors: Christian Ewald, Juergen Becker
  • Sealing element
    Patent number: 11073210
    Abstract: Sealing element for producing an electrically conductive connection between a first machine element and a second machine element, including at least one sealing disc and a support ring, the support ring comprising an axial flange and a radial flange, the sealing disc being formed from an electrically conductive non-woven fabric, and the sealing disc being secured at least in sections along the axial flange by means of a clamping connection between the support ring and the second machine element.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: July 27, 2021
    Assignee: Carl Freudenberg KG
    Inventors: Guenter Hintenlang, François Colineau, Martin Heldmann, Frank Guder, Jens Hofmann
  • Pocket filter element
    Patent number: 11052342
    Abstract: A filter element includes: a frame having a peripheral elastomer body in which a reinforcement element is embedded; and a filter pocket. The frame is connected to an opening in the filter pocket with a connection established integrally by the elastomer body. In an embodiment, the elastomer body is molded on the filter pocket.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: July 6, 2021
    Assignee: CARL FREUDENBERG KG
    Inventors: Maik Sieh, Felix Herberg, Hans Wiegand
  • Flat mop cover with two cleaning surfaces
    Patent number: 11045064
    Abstract: A flat mop cover for mop-cover holder, where the flat mop cover comprises an elongate basic body. The basic body has a first elongate surface and a second elongate surface, which lie opposite one another. At least one foam-material layer is disposed between the elongate surfaces, and the two elongate surfaces are each configured to be cleaning surfaces. The two elongate surfaces are disposed such that a plate-shaped carrying element of a mop-cover holder is configured to be disposed in a sandwich-like manner between the two surfaces. The basic body is configured to absorb in a reversible manner at least four times, and at most twenty times, its dry weight in liquid, and wherein the foam-material layer has no fibers.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: June 29, 2021
    Assignee: CARL FREUDENBERG KG
    Inventors: Dennis Smeijer, Thomas Caruso, Leo Gubenko, Joseph Seifts
  • Seal and seal assembly comprising the seal
    Patent number: 11015713
    Abstract: A seal includes: a seal ring, having at least one dynamically stressed seal lip; a supporting ring made of a toughened material; and a connecting device made of an elastomeric material. The seal ring and the supporting ring are connected to one another. The supporting ring includes a radial leg, to which, in a radial direction, the seal lip is fixed. The radial leg is formed of two parts and, in the radial direction, has arranged a first partial leg and, in an other radial direction has arranged a second partial leg. The partial legs are associated adjacent with a first radial distance and delineate a first gap. The first partial leg is connected with the seal lip. The first and the second partial legs are fixed to one another by the connecting device. The connecting device, when viewed in cross section, has an axial length and a radial height.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: May 25, 2021
    Assignee: CARL FREUDENBERG KG
    Inventors: Juergen Emig, Ross Dixon
  • Seal
    Patent number: 11002363
    Abstract: A seal includes: a sealing ring made of a sealing material; and at least one shielding ring made a soft magnetic material for shielding against electromagnetic interfering waves. In an embodiment, the at least one shielding ring is formed by a ferrite ring. In an embodiment, the at least one shielding ring includes at least two shielding rings, the at least two shielding rings being arranged in a functional series connection.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: May 11, 2021
    Assignee: CARL FREUDENBERG KG
    Inventors: Francois Colineau, Jens Hofmann, Thomas Klenk
  • Ventilation system in a mobile structure and method for operating a ventilation system in a mobile structure
    Patent number: 10981436
    Abstract: A ventilation system for a mobile structure, in particular a motor vehicle, includes: a variably adjustable filter device including at least one controllable, variable filter characteristic with regard to a pollutant class; means for collecting information about the air quality in the surroundings of the mobile structure and in particular information about the air quality in an interior of the mobile structure; and a control unit for varying filter characteristics of the filter device in a variable, in particular continuous, manner, on the basis of the information about the air quality.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: April 20, 2021
    Assignee: CARL FREUDENBERG KG
    Inventors: Ulrich Stahl, Volker Braeunling, Anette Arnold
  • Sponge mop
    Patent number: 10918257
    Abstract: An insert for a mop includes a rail and a cleaning element at least partially disposed in an internal channel of the rail. Two protrusions are disposed on the body, each forming a leg connected to the body and a cylindrical wall defining an actuation bore connected to the leg. Each actuation bore is adapted to overlap a substantial portion of a tine, the tine being associated with a sponge mop having a hand lever that operates to pull the tine, the tine being disposed in the actuation bore and configured to impart a force onto the body through the actuation bore to pull the rail and the cleaning element through a set of rollers to wring out fluids that may be present in the cleaning element.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: February 16, 2021
    Assignee: Carl Freudenberg KG
    Inventors: Leo Gubenko, Omar Betouni, Thomas J. Caruso
  • Floor cleaning pad
    Patent number: D912351
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: March 2, 2021
    Assignee: CARL FREUDENBERG KG
    Inventor: Diana Thyson
  • Mop
    Patent number: D912358
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: March 2, 2021
    Assignee: CARL FREUDENBERG KG
    Inventor: Alessandro Brugora
  • Cleaning brushware
    Patent number: D914307
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: March 23, 2021
    Assignee: CARL FREUDENBERG KG
    Inventors: Norbert Weis, Christian Stenglein
  • Sponge
    Patent number: D914310
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: March 23, 2021
    Assignee: CARL FREUDENBERG KG
    Inventor: Olivier Bedue
  • Cleaning pad with pattern
    Patent number: D914370
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: March 30, 2021
    Assignee: CARL FREUDENBERG KG
    Inventor: Diana Thyson
  • Bucket
    Patent number: D918512
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: May 4, 2021
    Assignee: CARL FREUDENBERG KG
    Inventor: Dietmar Van Loyen
  • Bucket
    Patent number: D918514
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: May 4, 2021
    Assignee: CARL FREUDENBERG KG
    Inventor: Dietmar Van Loyen
  • Nozzle for floor cleaner
    Patent number: D919914
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: May 18, 2021
    Assignee: CARL FREUDENBERG KG
    Inventors: Jan Meissner, Guenter Wissmann
  • Pedal for bucket with wringer
    Patent number: D923897
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: June 29, 2021
    Assignee: CARL FREUDENBERG KG
    Inventor: Carlo Messineo
  • Cleaning brushware
    Patent number: D924511
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: July 6, 2021
    Assignee: CARL FREUDENBERG KG
    Inventors: Norbert Weis, Christian Stenglein
  • Mop or broom handle
    Patent number: D925850
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: July 20, 2021
    Assignee: CARL FREUDENBERG KG
    Inventor: Heiko Tullney
  • Mop or broom handle
    Patent number: D926409
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: July 27, 2021
    Assignee: CARL FREUDENBERG KG
    Inventor: Heiko Tullney