Patents Assigned to Freudenberg
  • MOP
    Publication number: 20130283558
    Abstract: A mop comprising a mop head (1) that has at least one cleaning strip (2) is disclosed. The cleaning strip (2) comprises at least one cleaning surface (5) on which raised cleaning islands (6) made of flock fibers are arranged. The cleaning strip (2) is attached to the mop head (1) at one of its ends (3) and has a free end (4). The raised cleaning islands (6) on the at least one cleaning surface (5) of the cleaning strip (2) are arranged at certain distances (7) from each other and are surrounded on all sides by storage spaces (8) for holding dirt. The size of the storage spaces (8) steadily decreases from the end (3) of the cleaning surface (5) facing the mop head (1) in the mopping direction (9) of the free end (4).
    Type: Application
    Filed: October 17, 2011
    Publication date: October 31, 2013
    Applicant: CARL FREUDENBERG KG
    Inventors: Karl-Ludwig Gibis, Norbert Weis, Dieter Philipp, Lars Schmitt
  • Publication number: 20130283557
    Abstract: Cleaning device comprising a support (1) with at least one cleaning surface (2) on which raised cleaning islands (3) are arranged at certain distances (4, A, B, C, D, E, 9) from each other such that the cleaning islands (3) are surrounded on all sides by storage spaces (5) for holding dirt. The size of the storage spaces (5) decreases steadily from at least one edge (6) of the cleaning surface at least to the middle of the cleaning surface (2) in the cleaning direction (7).
    Type: Application
    Filed: October 17, 2011
    Publication date: October 31, 2013
    Applicant: CARL FREUDENBERG KG
    Inventors: Karl-Ludwig Gibis, Norbert Weis
  • Patent number: 8561245
    Abstract: A cleaning implement (10) comprising a handle (12) a cleaning end (24) coupled to the handle, and a cleaning head (14). The cleaning head may be removably coupled to the cleaning end, and can include a pair of tabs (30) extending through an aperture (32) in the cleaning end. Each tab may have a finger grip (56), and the finger grips may be generally offset from one another. Each tab may have a ledge (50) for contacting an upper surface of the cleaning end near a perimeter of the aperture to retain the cleaning head to the cleaning end. The tabs may be movable such that the ledges are moved out of contact with the upper surface of the cleaning end when removing the cleaning head from the cleaning end.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: October 22, 2013
    Assignee: Carl Freudenberg KG
    Inventor: Norbert Weis
  • Publication number: 20130274415
    Abstract: Fibers or one-dimensional, two-dimensional, or three-dimensional fibrous structures configured to be hydrogelling, produced from fibers made of a first fiber raw material, whereby the first fiber raw material contains water-soluble polyvinyl alcohol and/or polyvinyl alcohol copolymer, whereby the hydrogelling configuration of the fibers or fibrous structures is achieved by tempering the fiber raw material at a predetermined tempering temperature that is preferably higher than the glass transition temperature and/or lower than the melting or decomposition temperature of the first fiber raw material employed, as well as by tempering for a predetermined tempering duration, and whereby the fiber raw material is cross-linked by the tempering.
    Type: Application
    Filed: April 4, 2013
    Publication date: October 17, 2013
    Applicant: Carl Freudenberg KG
    Inventors: Wiebke Schmitz, Bernd Schlesselmann, Katharina Krampfl, Marc Pehr
  • Publication number: 20130244523
    Abstract: A method for the production of at least one of oxidized cellulose fibers, oxidized cellulose fiber sheet materials and oxidized cellulose nonwovens includes introducing at least one of cellulose fibers, cellulose fiber sheet materials and cellulose nonwovens into a reactor. A temperature of the reactor is set in a range from 25° C. to 80° C. Gaseous nitrogen dioxide is introduced into the reactor so as to oxidize the at least one of cellulose fibers, cellulose fiber sheet materials and cellulose nonwovens. A temperature of the reactor is set in a range from 20° C. to less than 160° C. The at least one of oxidized cellulose fibers, oxidized cellulose fiber sheet materials and oxidized cellulose nonwovens are neutralized with at least one base.
    Type: Application
    Filed: July 29, 2011
    Publication date: September 19, 2013
    Applicant: CARL FREUDENBERG KG
    Inventors: Wiebke Schmitz, Julia Schmidt, Bernd Schlesselmann, Gunter Scharfenberger
  • Publication number: 20130234402
    Abstract: A seal includes at least one sealing profile (1.1, 1.2, 1.3) with at least one sealing lip (2.1, 2.2, 2.3) and at least one hook-shaped claw connector (3.1, 4.2, 3.3, 4.3), which, when viewed in the cross-section of the sealing profile (1.1, 1.2, 1.3), is adjacent to the sealing lip (2.1, 2.2, 2.3).
    Type: Application
    Filed: September 16, 2011
    Publication date: September 12, 2013
    Applicant: CARL FREUDENBERG KG
    Inventor: Roland Fietz
  • Patent number: 8522433
    Abstract: A low cost and simple seal installation method provides for easy installation of bonded pistons and lip seals in an automatic transmission or other industrial machine. The installation method utilizes a flexible circular disc that can be inserted in a gap between the bore and the shaft and is pressed against the seal lip to flip the seal lip to its desired orientation while the disc is rolled around the circumference of the gap to orientate the entire seal in its proper position.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: September 3, 2013
    Assignee: Freudenberg-NOK General Partnership
    Inventor: Johnny Kinder
  • Patent number: 8512454
    Abstract: The invention relates to electrostatic dust catcher including a first (1) and a second electrode (2) and a voltage source (3) for applying an electrical voltage between the two electrodes (1, 2). The first electrode (1) is designed as a dust catching device and the second electrode (2) is grounded.
    Type: Grant
    Filed: November 13, 2008
    Date of Patent: August 20, 2013
    Assignee: Carl Freudenberg KG
    Inventors: Karl-Ludwig Gibis, Mike Kosub
  • Publication number: 20130200575
    Abstract: A seal with, on the one hand, a support body in the form of a carrier ring with an axial leg and, on the other hand, a sealing washer which is placed or arranged on the carrier ring and which surrounds the axial leg on the outer periphery, said carrier ring being made of a metallic material, wherein the carrier ring is made of a sheet of the HYS type.
    Type: Application
    Filed: February 4, 2013
    Publication date: August 8, 2013
    Applicant: Carl Freudenberg KG
    Inventor: Carl Freudenberg KG
  • Patent number: 8502635
    Abstract: A magnetostrictive element is provided comprising at least one device for generating a magnetic field, and at least one shaped part made of porous polymer containing ferromagnetic particles. The magnetostrictive element is characterized by having a distinct magnetostrictive effect.
    Type: Grant
    Filed: February 22, 2005
    Date of Patent: August 6, 2013
    Assignee: Carl Freudenberg KG
    Inventors: Ralf Heinrich, Peter Ryzko
  • Patent number: 8500942
    Abstract: A method for forming a textile fusible sheet material includes producing a fibrous web from fibers on a laydown apparatus so as to form a backing ply and applying a mixture of a binder and a thermoplastic polymer to selected areal regions of the fibrous web. The method further includes thermally treating the fibrous web so as to dry and bond the fibers of the fibrous web using the binder to form a bonded fibrous web nonwoven fabric and so as to sinter the thermoplastic polymer with a surface of the bonded fibrous web nonwoven fabric.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: August 6, 2013
    Assignee: Carl Freudenberg KG
    Inventors: Peter Grynaeus, Oliver Staudenmayer, Hans Rettig
  • Publication number: 20130192019
    Abstract: The invention relates to a drive system (1) for driving an automatic cleaning unit, comprising: —a carrier unit (7, 10); —a drive motor (2), which is fastened on the carrier unit (7, 10); —a driveshaft (4), which is arranged in a rotatable manner on the carrier unit (7, 10) and can be driven by the drive motor (2); —an advancement device (15), which is arranged on the driveshaft (4) and can be rotated about the driveshaft, wherein the advancement device (15) is coupled to the driveshaft (4) in order to generate advancement transversely to the extent of the driveshaft (4) and in order, when advancement is stopped, to cause the advancement device (15) to rotate in relation to the carrier unit.
    Type: Application
    Filed: August 23, 2011
    Publication date: August 1, 2013
    Applicant: Carl Freudenberg KG
    Inventors: Norbert Weis, Johannes Flath, Karl-Ludwig Gibis
  • Patent number: 8496252
    Abstract: A seal includes a supporting body; a disk-shaped sealing element fixed to the supporting body so as to form a static seal and to include a free end; and a sealing body disposed at the free end so as to form a dynamic sealing edge, wherein the sealing body includes a material that is a different from a material of the sealing element.
    Type: Grant
    Filed: January 21, 2010
    Date of Patent: July 30, 2013
    Assignee: Carl Freudenberg KG
    Inventor: Denis Broisin
  • Patent number: 8495781
    Abstract: A cleaning device for cleaning a floor includes a base body, a rotatable roller brush disposed on the base body, a dirt container disposed on the base body, a liquid container configured to receive a cleaning liquid disposed on the base body; and a sponge configured to receive a soiled cleaning liquid disposed on the base body.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: July 30, 2013
    Assignee: Carl Freudenberg KG
    Inventor: Uwe Dingert
  • Patent number: 8485533
    Abstract: A dynamic seal assembly for installation between first and second relatively rotating members, comprising a ring for fixed engagement with said first member and an annular seal extending radially from said ring and configured to slidably engage said second member, wherein said radial seal has a thickness, and a length that is from about 1 to about 15 times greater than said thickness. In various embodiments, the seal is formed of a rubber composition comprising a vulcanized fluorocarbon elastomer dispersed in a matrix of a thermoplastic polymeric material. In various embodiments, the matrix forms a continuous phase and the vulcanized elastomeric material is in the form of particles forming a non-continuous phase. The compositions may be made by combining a curative, an uncured fluorocarbon elastomer, and a thermoplastic material, and heating the mixture to effect vulcanization of the elastomeric material, while applying mechanical energy.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: July 16, 2013
    Assignee: Freudenberg-NOK General Partnership
    Inventors: Edward H. Park, Alexander Berdichevsky, Vahidin Alajbegovic
  • Patent number: 8485611
    Abstract: The broom may include a broom body. The broom body may include a shaft side, a shoulder disposed on the shaft side, a cleaning side, and a bump guard disposed on the shoulder. The broom may further comprise a shaft extending from the shoulder and a plurality of bristles extending from the cleaning side. The bump guard may be relatively softer than a main piece of the broom body. The broom body may also include a lower bump guard covering a toe and a heel of the broom body. In one embodiment, the broom body may be comprised of a core and a skin. The skin may be overmolded onto the core. The bump guard may be overmolded onto the skin. In another embodiment, the core and the skin may be molded together in a co-injection molding process.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: July 16, 2013
    Assignee: Carl Freudenberg KG
    Inventors: Norbert W. Weis, Ralf G. Juergens
  • Publication number: 20130175763
    Abstract: A seal for sealingly engaging a shaft or other rotatable element includes a sealing portion having a lubricant side and a non-lubricant side and extending generally inwardly toward the shaft when the seal is installed thereon. The sealing portion has an active lip portion including a shaft engagement surface engageable with the shaft and a lubricant vent extending through at least a portion of the active lip portion. The lubricant vent provides fluid communication between opposite sides of the active lip portion, thus maintaining adequate lubrication between the shaft engagement surface and the shaft, avoiding lubricant coking, or other degradation, and extending seal life.
    Type: Application
    Filed: January 10, 2012
    Publication date: July 11, 2013
    Applicant: FREUDENBERG-NOK GENERAL PARTNERSHIP
    Inventors: Alexander Berdichevsky, David Sakata, Sean Donovan
  • Patent number: 8481437
    Abstract: The invention relates to a thermally bound non-woven material containing a low-shrinkage dual-component core-sheath fiber consisting of a crystalline polyester core and a crystalline polyester sheath which has a melting point at least 10° C. lower than the core, the heat-shrinkage characteristic of said fiber being less than 10% at 170° C.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: July 9, 2013
    Assignee: Carl Freudenberg KG
    Inventors: Armin Greiner, Klaus Veeser, Holger Schilling, Guenter Frey, Ralph Berkemann
  • Publication number: 20130171901
    Abstract: An adhesive compound for a hot-sealing insert is provided, as are an insert that contains this adhesive compound, and a method for fixing the insert. The adhesive compound has a thermoplastic hot-melt adhesive (A) that is not adhesive at room temperature and a pressure sensitive adhesive (B) that is adhesive at room temperature.
    Type: Application
    Filed: July 21, 2011
    Publication date: July 4, 2013
    Applicant: CARL FREUDENBERG KG
    Inventors: Heike Bartl, Cornelia Kinscherf, Oliver Staudenmayer, Ulrich Scherbel
  • Patent number: D685960
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: July 9, 2013
    Assignee: Carl Freudenberg KG
    Inventor: Norbert Weis