Patents Assigned to Carl Freudenberg
-
Patent number: 11718373Abstract: A ballast seal for a sealing ring includes: a substantially annular potential equalization ring made of an electrically-conductive material and which can be brought into contact in a sealing manner with a surface to be sealed of a machine element to be sealed; and at least one shielding ring made of a soft magnetic material so as to shield against electromagnetic interfering waves.Type: GrantFiled: February 13, 2019Date of Patent: August 8, 2023Assignee: CARL FREUDENBERG KGInventors: Francois Colineau, Jens Hofmann, Thomas Klenk
-
Patent number: 11703127Abstract: A seal assembly includes: a seal element; a part to be sealed; and a measuring arrangement for monitoring an aging of the seal element. The seal element is held on the part so as to provide a contact stress between the seal element and the part. The seal element has a contact face with which the seal element bears against the part. At least one measuring component of the measuring arrangement is integrated in each case into the seal element and into the part. The contact face of the seal element has a surface geometry with depressions.Type: GrantFiled: January 9, 2020Date of Patent: July 18, 2023Assignee: CARL FREUDENBERG KGInventors: Olaf Nahrwold, Stefan Sindlinger, Boris Traber, Tanja Claus, Thomas Kramer, Frank Lauer, Rainer Kreiselmaier, Guido Hohmann, Christoph Naumann
-
Patent number: 11690493Abstract: A cleaning robot including: a main body; a drive device; and a cleaning device equipped for wet-cleaning floors to be cleaned, wherein: the main body, on the side facing the floor to be cleaned, is assigned a receptacle unit, a first mop pad configured for wet-cleaning is fastened to the receptacle unit, and the cleaning robot is configured to autonomously exchange the first mop pad fastened to the receptacle unit for a second mop pad.Type: GrantFiled: July 23, 2020Date of Patent: July 4, 2023Assignee: CARL FREUDENBERG KGInventors: Norbert Weis, Marc Heiland, Christian Stenglein
-
Patent number: 11684884Abstract: A filter element for filtration of an air stream includes: a folded filter medium forming a bellows, the filter medium being constructed at least in two layers and having a particle filter layer, an electrically conductive filter layer, and at least one edge band, the at least one edge band being connected to at least one outer side of the bellows. At least one further edge band is connected to an outer side of the bellows. The at least one further edge band is electrically conductive. The at least one further edge band forms a pocket open towards one side.Type: GrantFiled: October 15, 2020Date of Patent: June 27, 2023Assignee: CARL FREUDENBERG KGInventors: Alexander Oelsner, Gennaro De Angelis, Ulrich Stahl, Peter Capuani, Oliver Staudenmayer
-
Patent number: 11668032Abstract: A nonwoven includes: framework fibers; an at least in part fused thermoplastic material; and a thermally embossed mesh pattern having a plurality of intersecting embossed grooves, between which a plurality of embossed elevations are arranged. At least the framework fibers are staple fibers. An equivalent diameter of the embossed elevations is smaller than 50% of a fiber length of the framework fibers. A ratio of a width of the embossed grooves to a thickness of the nonwoven in a region of the embossed elevations is less than or equal to 4/5 A ratio of the width of the embossed grooves to a thickness of the nonwoven in a region of the embossed grooves is from 0.5 to 2.Type: GrantFiled: December 21, 2016Date of Patent: June 6, 2023Assignee: CARL FREUDENBERG KGInventors: Norbert Weis, Christoph Rieger, Klaus Schwoebel, Dieter Philipp
-
Patent number: 11656588Abstract: A method for designing and/or controlling a filter assembly for the air supply to a turbomachine includes: calculating a current and/or an expected concentration of particles in air present at an inlet of at least one filter stage of the filter assembly as a function of a mean size of the particles; calculating a sensitivity spectrum that, depending on the mean size of the particles, indicates an extent to which a predetermined concentration of such particles has a negative effect on performance and/or on service life of the turbomachine; calculating, for at least one filter candidate usable in the filter stage and/or switchable on or off, a concentration of particles to be expected at an outlet of the filter from a concentration and filter properties of the at least one filter candidate; and calculating a quality rating from the concentration and a sensitivity spectrum.Type: GrantFiled: July 15, 2019Date of Patent: May 23, 2023Assignee: CARL FREUDENBERG KGInventors: Patrick Weber, Georg Hirsch, Thomas Schroth
-
Patent number: 11629784Abstract: A sealing ring includes: a first axial leg; and a sealing leg with a sealing lip. When viewed in cross section, the sealing ring is in a shape of a seven. The sealing leg is connected to a first end face of the first axial leg by a first joint. The sealing leg has, on a side facing axially toward the first end face, a dirt lip with at least one sealing edge and a radially internal first boundary surface and a radially external second boundary surface.Type: GrantFiled: February 26, 2021Date of Patent: April 18, 2023Assignee: CARL FREUDENBERG KGInventors: Andreas Koch, Thomas Segbers, Jan Fritz, Mirko Minners, Stefan Scheffler, Akio Shimizu
-
Publication number: 20230104177Abstract: A cleaning article includes: a first panel having: a first fiber layer; and a first substrate attached to the first fiber layer by a first connection type; and a second panel having: a second fiber layer; and a second substrate attached to the second fiber layer by the first connection type. The first connection type includes a first connection line in parallel with a second connection line, the first and second connection lines together straddling a center line of a respective panel that extends in an axial direction. The first panel is attached to the second panel by a plurality of spot connections so as to create a pocket between the first panel and the second panel.Type: ApplicationFiled: December 7, 2022Publication date: April 6, 2023Applicant: Carl Freudenberg KGInventors: Friedel Winterling, Norbert Weis, Stephen Dickel, Robert G Challman, Sabine Boroyevich, Robert Ancheta, Doug Metzel, Eric Martin
-
Patent number: 11602254Abstract: A cleaning device includes: a liquid container; a heating element; and a pump for conveying liquid out of the liquid container in a direction of the heating element. The heating element at least partially vaporizes the liquid. The heating element is connected to a cleaning head, from which the vaporized liquid exits. A compensating device is arranged between the pump and the heating element.Type: GrantFiled: November 14, 2018Date of Patent: March 14, 2023Assignee: CARL FREUDENBERG KGInventor: Alessandro Brugora
-
Patent number: 11583160Abstract: A cleaning cart includes: a support body; and a communication device holder for receiving a mobile communication device. The communication device holder is secured to the support body. In an embodiment, the support body has a double-shell construction, including an outer first shell and an inner second shell. The first shell covers the second shell in an essentially dome-shaped manner.Type: GrantFiled: November 8, 2018Date of Patent: February 21, 2023Assignee: CARL FREUDENBERG KGInventors: Jens Deerberg, Torsten Gratzki, Steve Barber, Ralf Juergens, Felix Fallenstein, Nikolai Sand, Andreas Eisenhut
-
Patent number: 11564549Abstract: A dusting tool having a flexible skeletal element including a base, from which four elongated arms extend. The elongated arms have a base end and a distal end. The base ends extend from the base and being spaced apart from one another at the base. The arms being flexible and resilient. A plurality of cross-members extend between the elongated arms, a plurality of living hinges being disposed between the plurality of cross-members and the elongated arms. A force applied to at least one of the elongated arms is transmitted to the other of the elongated arm by the plurality of cross-members and the plurality of living hinges.Type: GrantFiled: September 17, 2021Date of Patent: January 31, 2023Assignee: Carl Freudenberg KGInventors: Robert Ancheta, Doug Metzel, Eric Martin, Robert G. Challman
-
Patent number: 11560949Abstract: Sealing element for producing an electrically conductive connection between a first machine element and a second machine element, comprising at least one disc-shaped conducting element and a support ring, the support ring comprising an axial flange and a radial flanged, the conducting element being formed from an electrically conductive foil, and the conducting element being secured at least in sections along the axial flange between the support ring and the second machine element.Type: GrantFiled: September 30, 2019Date of Patent: January 24, 2023Assignee: CARL FREUDENBERG KGInventors: Guenter Hintenlang, Martin Heldmann, Thomas Klenk, Jens Hofmann
-
Patent number: 11536312Abstract: A sealing bellows made of an elastomeric material includes: a first end face; a second end face; and a casing having a central axis, the casing being arranged in an axial direction between the first and second end faces, the casing including at least one torsion-compensating element for absorbing torsional movements introduced into the sealing bellows substantially without torsional stress. The first end face includes a first static seal and the second end face includes a second static seal. The sealing bellows is made of a TPE material.Type: GrantFiled: September 13, 2019Date of Patent: December 27, 2022Assignee: CARL FREUDENBERG KGInventors: Rainer Knorr, Tatsuro Hosen
-
Patent number: 11497151Abstract: A sealing arrangement includes: a first machine element and a second machine element, each made of an electrically-conductive material; and a seal. The first and second machine elements are sealed against one another by the seal. At least one of the machine elements is made of an electrically-conductive plastic which is at least partially covered by an electrically-insulating, injection-molded skin as a result of production. The seal has an electrically-conductive support body. The support body has at least one substantially mandrel-shaped projection comprising an electrically-conductive material which is arranged on a side of the support body facing the injection-molded skin and completely penetrates the injection-molded skin.Type: GrantFiled: March 9, 2021Date of Patent: November 8, 2022Assignee: CARL FREUDENBERG KGInventors: Herve Di Meo, Marina Nussko, Matthias Hauer, Volker Schroiff, Marco Sutter
-
Publication number: 20220346540Abstract: A beveled broom and step-on dustpan cleaning system including a step-on dustpan having a step-on portion configured to allow a user to collect debris in a receptacle of the dustpan when a force is applied on the step-on portion. The dustpan includes a lip portion which is configured to seal against a floor surface upon a user stepping on the step-on portion to collect debris. A beveled broom having a broom head configured with a beveled or chamfered shape at a functional angle to provide an effective and efficient contact surface to a floor surface to collect debris during use.Type: ApplicationFiled: July 15, 2022Publication date: November 3, 2022Applicant: Carl Freudenberg KGInventors: Doug Metzel, Robert Ancheta
-
Patent number: D970138Type: GrantFiled: February 12, 2020Date of Patent: November 15, 2022Assignee: CARL FREUDENBERG KGInventor: Diana Thyson
-
Patent number: D974687Type: GrantFiled: February 18, 2021Date of Patent: January 3, 2023Assignee: Carl Freudenberg KGInventor: Doug Metzel
-
Patent number: D986523Type: GrantFiled: March 19, 2020Date of Patent: May 16, 2023Assignee: Carl Freudenberg KGInventors: Doug Metzel, Robert Ancheta
-
Patent number: D997481Type: GrantFiled: April 6, 2021Date of Patent: August 29, 2023Assignee: CARL FREUDENBERG KGInventors: Francesco Vetro, Guenter Wissmann, Johanna Koenigsberger, Florian Haettich
-
Patent number: D997482Type: GrantFiled: April 7, 2021Date of Patent: August 29, 2023Assignee: CARL FREUDENBERG KGInventors: Francesco Vetro, Guenter Wissmann, Johanna Koenigsberger, Florian Haettich