Patents Assigned to Freudenberg
  • Seal arrangement
    Patent number: 11255438
    Abstract: A seal arrangement for sealing a gap between a machine element comprising a shaft and a housing includes: at least one sealing element formed, at least partially, from polymeric material. The at least one sealing element is of annular design and is made of PTFE. The at least one sealing element has at least one first annular element and at least one second annular element. The at least one first element is electrically conductive and the at least one second element is electrically insulating. The at least one first element is arranged axially adjacently to the at least one second element. The at least one sealing element is provided with electrically conductive contact elements. The housing has an installation space forming an annular groove for the at least one sealing element. The installation space is provided with a lining forming an insulation.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: February 22, 2022
    Assignee: CARL FREUDENBERG KG
    Inventors: Olaf Nahrwold, Stefan Sindlinger, Boris Traber, Sascha Moeller
  • Sealing ring
    Patent number: 11236829
    Abstract: A sealing ring includes: a lip ring, with at least one sealing lip; and a supporting ring. The lip ring and the supporting ring are connected to one another. The lip ring and the supporting ring each are formed from an elastomeric material. A modulus of elasticity of the lip ring is smaller than a modulus of elasticity of the supporting ring.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: February 1, 2022
    Assignee: CARL FREUDENBERG KG
    Inventor: Simon Watling
  • Filter cartridge with venturi nozzle
    Patent number: 11235271
    Abstract: A filter cartridge for cleaning an air flow includes a base, a cover provided with a central recess, and at least one pleated filter element arranged between the cover and the base. The at least one filter element encloses an interior space. The cover has a venturi nozzle, and the venturi nozzle engages in the pleated filter element. The venturi nozzle is spread out in comb-like fashion in the region of its end engaging in the filter element.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: February 1, 2022
    Assignee: CARL FREUDENBERG KG
    Inventors: Stefan Kluck, Karsten Schulz, Sascha Schumacher
  • INTEGRATED BATTERY UNIT
    Publication number: 20220006136
    Abstract: An integrated battery unit includes a battery cell and a graphite matrix surrounding the battery cell, wherein the graphite matrix is soaked with a phase change material. Each of the integrated battery units include an integrated circuit board that manages charging and discharging of the battery cell based upon data received from adjacent integrated battery units and a communication from the sources external to the battery pack. A hybrid battery unit can also include a capacitor function that temporarily stores and discharges electric charge and can be controlled by the integrated circuit board.
    Type: Application
    Filed: December 2, 2019
    Publication date: January 6, 2022
    Applicant: Freudenberg-NOK General Partnership
    Inventor: Alexander BERDICHEVSKY
  • Automatic medical valve with a variable diameter seal
    Patent number: 11207512
    Abstract: A medical valve assembly includes a tube extending between proximal and distal tube ends. A plunger plate extends radially from the distal tube end, and a valve housing surrounds the tube and extends between proximal and distal valve housing ends. The valve housing includes a flange extending radially inwardly from the distal valve housing end and disposed in spaced relationship with the plunger plate to define a distance dimension D extending therebetween. An elastomeric seal is compressed between the plunger plate and the flange to establish a closed condition of the medical valve assembly. The elastomeric seal axially moves one of the valve housing and the tube relative to the other when a medical device is inserted into the medical valve assembly to automatically increase the distance dimension and establish an open and sealed condition of the medical valve assembly with the inserted medical valve.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: December 28, 2021
    Assignee: FREUDENBERG MEDICAL, LLC
    Inventors: Greg Furnish, Anthony Appling, Ben Morris, Timothy S. Zeis
  • Adjustable tracheostoma valve and heat and moisture exchanger
    Patent number: 11173267
    Abstract: An adjustable tracheostoma valve includes a housing having a first opening that is adapted to open to a tracheostoma and a second opening that opens to ambient. The housing includes a lower housing portion defining the first opening and an upper housing portion movably attached to the lower housing portion and defining the second opening. A closure member is disposed in the housing and adapted to close the second opening. A flexible membrane includes a first region connected to the closure member and a plurality of spiral shaped legs extending from the first region and connected to the housing. The upper and lower housings are axially adjustable relative to one another to adjust an amount of air flow through the valve that would cause closure of the closure member. A heat and moisture exchanger is disposed in the housing between the first opening and the second opening.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: November 16, 2021
    Assignee: Freudenberg Medical, LLC
    Inventors: Neil Markwardt, John C. Day
  • Seal arrangement
    Patent number: 11168792
    Abstract: A sealing arrangement for sealing a gap between a machine element and a housing includes: at least one sealing element; and an insulation which electrically insulates the at least one sealing element from the machine element and the housing. The at least one sealing element is at least partially electrically conductive.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: November 9, 2021
    Assignee: CARL FREUDENBERG KG
    Inventors: Olaf Nahrwold, Stefan Sindlinger, Boris Traber, Sascha Moeller
  • Floor mop
    Patent number: 11147428
    Abstract: An actuable shaft assembly for a spray mop assembly includes first and second hollow elongated outer shaft segments in which first and second elongated actuating rod segments are telescopingly disposed, respectively. The first and second outer shaft segments include respective first and second shaft retaining elements extending into their hollow interiors. The first and second rod segments include respective first and second rod retaining elements extending radially outward from their outer peripheral surfaces. The rod retaining elements and shaft retaining elements are sized and disposed to limit telescoping movement of the associated rod segments outward from the shaft segment ends.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: October 19, 2021
    Assignee: Carl Freudenberg KG
    Inventors: Doug Metzel, Eric Wehrli
  • Seal
    Patent number: 11131386
    Abstract: A seal includes a supporting ring and at least one sealing ring. The at least one sealing ring has a sheath. The at least one sealing ring and the supporting ring are interconnected. The supporting ring has an outer periphery and is, at least in part, surrounded on the outer periphery by the sheath of the at least one sealing ring in a radial direction. The at least one sealing ring has at least one dynamically loaded sealing lip, which is arranged on a side of the at least one sealing ring facing radially away from the sheath. The at least one sealing ring includes an electrically conductive polymer material. The sheath and the sealing lip transition into one another as one piece.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: September 28, 2021
    Assignee: CARL FREUDENBERG KG
    Inventors: Ulrich Dahlhaus-Preussler, Daniel Froehlich, Ludwig Baer, Pit Wiedemann, Christian Pfeifer
  • Sealing ring and seal arrangement comprising such a sealing ring
    Patent number: 11131387
    Abstract: A sealing ring includes: a supporting element; and a lip seal having at least one first and one second lip seal section having sealing materials differing from one another. The first lip seal section at one end is connected to the supporting element, and at an other end has a free end on which the second lip seal section is arranged. The second lip seal section includes an elastomeric sealing material.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: September 28, 2021
    Assignee: CARL FREUDENBERG KG
    Inventors: Martin Heldmann, Jens Hofmann, Guenter Hintenlang
  • Beveled Broom and Step-On Dustpan Cleaning System
    Publication number: 20210289933
    Abstract: 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: Application
    Filed: June 12, 2020
    Publication date: September 23, 2021
    Applicant: Carl Freudenberg KG
    Inventors: Doug Metzel, Robert Ancheta
  • Self energized seal
    Patent number: 11125336
    Abstract: A sealing system includes a housing defining a bore having an internal surface. A rotatable shaft is rotatably disposed in the bore and includes an annular groove disposed in an exterior surface of the rotatable shaft. The annular groove includes a groove bottom and a pair of lateral sidewalls. A seal is formed as a cylindrical annular thermoplastic body having an axial length greater than an axial length of the annular groove and which is bent into a V-shaped cross-section and received in the annular groove so that opposite ends of the seal are disposed in opposite bottom corners of the annular groove. A peak portion of the V-shaped cross section extends radially outward of the annular groove and is engaged with the internal surface of the bore.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: September 21, 2021
    Assignee: Freudenberg-NOK General Partnership
    Inventor: Raymond L. Szparagowski
  • Two-piece pinion tool
    Patent number: 11123852
    Abstract: A two-piece pinion shaft tool for disassembling a two-piece pinion shaft from a rack and pinion housing includes a tool body having an axial opening extending along an axis of the tool body and a transverse opening at least partially communicating with the axial opening. The tool body includes internal threads within the axial opening. A pin is inserted in the transverse opening for engaging a keyway in a first shaft portion of the two-piece pinion shaft. A slide hammer includes a slide portion having external threads engaged with the internal threads of the tool body and a hammer portion disposed on the slide portion. The tool body further includes a first end with a first plurality of fingers extending axially from the tool body and includes a second end with a second plurality of fingers extending axially from the tool body.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: September 21, 2021
    Assignee: Freudenberg-NOK General Partnership
    Inventor: Roger Lee Barnett, Jr.
  • COMPOSITE MATERIAL STRUCTURE
    Publication number: 20210252827
    Abstract: The invention provides a composite material structure, including a first cloth layer, a second cloth layer, a breathable thermoplastic material layer, and a lining cloth layer. The breathable thermoplastic material layer is located between the first cloth layer and the second cloth layer and disposed on the first cloth layer. The lining cloth layer is located between the first cloth layer and the second cloth layer, and is formed by a base cloth and a dispensing layer, and the base cloth is disposed on the second cloth layer via the dispensing layer. Therefore, the breathability and comfort of the clothing, the uniformity of elasticity, and the flexibility of design may be improved, and the composite material structure is especially suitable for sportswear or personal clothing.
    Type: Application
    Filed: June 8, 2018
    Publication date: August 19, 2021
    Applicant: Freudenberg & Vilene Nonwovens (Taiwan) Co., Ltd.
    Inventors: Chi-Yin Lee, Jian-Hao Chien, Wan-Ting Hu
  • Bearing bush
    Patent number: 11078963
    Abstract: A bearing bush includes at least one sealing element and one bearing element. The sealing element is provided with at least one sealing lip. The bearing element is substantially tubular. The bearing element includes a plurality of protrusions extending in the axial direction on the outer circumference. The inner diameter of the bearing element is larger in the sections corresponding to the protrusions than in the remaining sections.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: August 3, 2021
    Assignee: CARL FREUDENBERG KG
    Inventors: Frank Schoenberg, Matthias Hauer, Christoph L. Klingshirn, Wojciech Kokoszynski, Randolph Gaa, Stephen Joyce, Joram Wiggers, Dean Morrison, Simon Watling, Juergen Emig
  • Nozzle for floor cleaner
    Patent number: D928437
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: August 17, 2021
    Assignee: CARL FREUDENBERG KG
    Inventors: Jan Meissner, Guenter Wissmann
  • Floor cleaner
    Patent number: D931561
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: September 21, 2021
    Assignee: CARL FREUDENBERG KG
    Inventors: Jan Meissner, Guenter Wissmann
  • Floor cleaner
    Patent number: D933318
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: October 12, 2021
    Assignee: CARL FREUDENBERG KG
    Inventors: Jan Meissner, Guenter Wissmann
  • Floor cleaner
    Patent number: D938117
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: December 7, 2021
    Assignee: CARL FREUDENBERG KG
    Inventor: Uwe Dingert
  • Step-on dustpan
    Patent number: D939172
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: December 21, 2021
    Assignee: Carl Freudenberg KG
    Inventors: Robert Ancheta, Doug Metzel