Patents by Inventor Siegfried Bernhardt

Siegfried Bernhardt 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: 20230374710
    Abstract: The disclosure provides needled sandwich material structures in which a core nonwoven with vertically oriented fibres is used; and a method of manufacturing these sandwich material structures.
    Type: Application
    Filed: September 2, 2021
    Publication date: November 23, 2023
    Inventors: Siegfried BERNHARDT, Volkmar SCHULZE
  • Publication number: 20220144189
    Abstract: A needled nonwoven for the manufacture of, in particular, textile wheel arch liners, has different materials in its individual layers across the thickness.
    Type: Application
    Filed: February 18, 2020
    Publication date: May 12, 2022
    Applicant: ADLER PELZER HOLDING GMBH
    Inventors: Siegfried BERNHARDT, Volkmar SCHULZE, Matthias DICKERT, Ray SINGH, Andreas HART
  • Publication number: 20220145500
    Abstract: An apparatus for the production of needle punched nonwovens makes it possible to introduce different materials via the nonwoven thickness and/or nonwoven width into the individual layers during their production.
    Type: Application
    Filed: February 18, 2020
    Publication date: May 12, 2022
    Applicant: ADLER PELZER HOLDING GMBH
    Inventors: Siegfried BERNHARDT, Volkmar SCHULZE
  • Publication number: 20200407887
    Abstract: The invention relates to a method for recovering fibers from non-backed, backed and/or deformed carpet scraps and/or back-up material scraps of textile multi-layer composites, in particular of passenger compartment carpeting or luggage compartment carpeting in the field of automobile manufacture.
    Type: Application
    Filed: January 14, 2019
    Publication date: December 31, 2020
    Inventors: Siegfried Bernhardt, Volkmar Schulze
  • Patent number: 7779512
    Abstract: A feeding device for fiber flocks or opened fibers for feeding a textile machine, especially a carding machine, has a first, upper vertical fiber chute which supplies the fibers or fiber flocks to rolls for opening of the fibers, and a lower fiber chute which accepts the fibers released by the rolls and discharges a fiber mat at the bottom end of the fiber chute by way of discharge rolls. The feeding device also has a segmented intake trough with several intake trough segments which cooperate with a segmented, clothing-covered first roll, which is divided into several roll segments, wherein the torque of the roll segments can be controlled individually and the widths of the gaps between the intake trough segments and the associated roll segments can be adjusted on a segment-by-segment basis.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: August 24, 2010
    Assignee: Oskar Dilo Maschinenfabrik KG
    Inventors: Siegfried Bernhardt, Robert Kamprath, Heinz-Werner Naumann-Burghardt
  • Publication number: 20080313860
    Abstract: A feeding device for fiber flocks or opened fibers for feeding a textile machine, especially a carding machine, has a first, upper vertical fiber chute which supplies the fibers or fiber flocks to rolls for opening of the fibers, and a lower fiber chute which accepts the fibers released by the rolls and discharges a fiber mat at the bottom end of the fiber chute by way of discharge rolls. The feeding device also has a segmented intake trough with several intake trough segments which cooperate with a segmented, clothing-covered first roll, which is divided into several roll segments, wherein the torque of the roll segments can be controlled individually and the widths of the gaps between the intake trough segments and the associated roll segments can be adjusted on a segment-by-segment basis.
    Type: Application
    Filed: June 20, 2008
    Publication date: December 25, 2008
    Applicant: OSKAR DILO MASCHINENFABRIK KG
    Inventors: Siegfried Bernhardt, Robert Kamprath, Heinz-Werner Naumann-Burghardt
  • Patent number: 7152278
    Abstract: In a nonwoven card for the production of nonwoven fabric of fiber material, with a drawing-in means (2,4), a licker-in (6), a main cylinder (16), and at least one fiber doffer means (18) engaged with the main cylinder (16), for doffing a card web, the drawing-in means (2,4) transferring the fiber material to the licker-in (6) and a transfer means (8) transferring the fiber material at least double from the licker-in (6) to the main cylinder (16) via rollers (10, 10a, 10b, 10c, 12, 12a, 12b, 14), it is provided that at least one of the rollers (10, 10a, 10b, 10c, 12, 12a, 12b, 14) of the transfer means (8) is a random roller (10, 10a, 10b, 10c) rotating in the same direction as the main cylinder (16) and the licker-in (6).
    Type: Grant
    Filed: March 25, 2004
    Date of Patent: December 26, 2006
    Assignee: Spinnbau GmbH
    Inventors: Siegfried Bernhardt, Robert Kamprath, Heinz-Werner Naumann-Burghardt
  • Patent number: 7003853
    Abstract: In an intermediate card for manufacturing nonwovens of fibrous material, with a drawing-in means (2), with at least one main cylinder (4), and with several fiber take-off means (6a, 6b, 6c) for taking over at least two card webs from the main cylinder (4), the at least two card webs being adapted to be deposited as a nonwoven onto a common conveying belt of a conveying means, it is provided that each fiber take-off means (6a, 6b, 6c) transfers the taken-off card webs onto transfer sections (15a, 15b, 15c, 15d) circumferentially offset with respect to each other and forming part of a permeable conveying surface (15) curved in a circularly cylindrical manner, the circumferential speed of which is adapted to the transfer speed of the card webs at the transfer sections (15a, 15b, 15c, 15d) as to direction and amount, the transfer sections of the conveying surface (15) being sucked.
    Type: Grant
    Filed: July 27, 2004
    Date of Patent: February 28, 2006
    Assignee: Spinnbau GmbH
    Inventors: Siegfried Bernhardt, Robert Kamprath, Heinz-Werner Naumann-Burghardt
  • Publication number: 20050022343
    Abstract: In an intermediate card for manufacturing nonwovens of fibrous material, with a drawing-in means (2), with at least one main cylinder (4), and with several fiber take-off means (6a, 6b, 6c) for taking over at least two card webs from the main cylinder (4), the at least two card webs being adapted to be deposited as a nonwoven onto a common conveying belt of a conveying means, it is provided that each fiber take-off means (6a, 6b, 6c) transfers the taken-off card webs onto transfer sections (15a, 15b, 15c, 15d) circumferentially offset with respect to each other and forming part of a permeable conveying surface (15) curved in a circularly cylindrical manner, the circumferential speed of which is adapted to the transfer speed of the card webs at the transfer sections (15a, 15b, 15c, 15d) as to direction and amount, the transfer sections of the conveying surface (15) being sucked.
    Type: Application
    Filed: July 27, 2004
    Publication date: February 3, 2005
    Inventors: Siegfried Bernhardt, Robert Kamprath, Heinz-Werner Naumann-Burghardtz
  • Patent number: 6729465
    Abstract: In the case of a plant for transporting textile fabrics (1), with at least one permeable and suctioned conveyor belt (4) for the transport of a textile fabric (1) delivered by a textile machine onto the conveyor belt (4) at a delivery point (5), it is provided that on the side of the conveyor belt (4) facing away from the textile fabric (1), several air guiding means (6) extending transversely to the conveyor belt (4) are arranged, said air guiding means deflecting the air entrained by the conveyor belt (4) on the side facing away from the textile fabric (1).
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: May 4, 2004
    Assignee: Spinnbau GmbH
    Inventors: Siegfried Bernhardt, Robert Kamprath, Heinz-Werner Naumann-Burghardt
  • Patent number: 6662407
    Abstract: In the manufacture of a fiber fleece with a nonwoven producing means and a fleece laying machine, which produces from a single or multi-layered nonwoven web contionuously discharged by the nonwoven producing means a fleece web having a thickness variable across the laying width, the nonwoven web is cyclically drawn on the way between the nonwoven producing means and the fleece laying machine at a fixedly determined location, said drawing depending on the laying movements of the fleece laying machine to form a fleece web of a regular cross sectional profile. Between a separate drawing equipment performing the drawing process and the inlet into the fleece laying machine, the nonwoven web may run through a separate, variable buffer storage, which adapts the speed fluctuations of the nonwoven web on the outlet side of the drawing equipment to the intake speed of the fleece laying machine.
    Type: Grant
    Filed: August 14, 2002
    Date of Patent: December 16, 2003
    Assignee: Oskar Dilo Maschinenfabrik KG
    Inventors: Siegfried Bernhardt, Johann Philipp Dilo, Joachim Leger, Ulrich Wolf
  • Publication number: 20030057057
    Abstract: In the case of a plant for transporting textile fabrics (1), with at least one permeable and suctioned conveyor belt (4) for the transport of a textile fabric (1) delivered by a textile machine onto the conveyor belt (4) at a delivery point (5), it is provided that on the side of the conveyor belt (4) facing away from the textile fabric (1), several air guiding means (6) extending transversely to the conveyor belt (4) are arranged, said air guiding means deflecting the air entrained by the conveyor belt (4) on the side facing away from the textile fabric (1).
    Type: Application
    Filed: September 25, 2002
    Publication date: March 27, 2003
    Inventors: Siegfried Bernhardt, Robert Kamprath, Heinz-Werner Naumann-Burghardt
  • Publication number: 20030033691
    Abstract: In the manufacture of a fiber fleece with a nonwoven producing means and a fleece laying machine, which produces from a single or multi-layered nonwoven web contionuously discharged by the nonwoven producing means a fleece web having a thickness variable across the laying width, the nonwoven web is cyclically drawn on the way between the nonwoven producing means and the fleece laying machine at a fixedly determined location, said drawing depending on the laying movements of the fleece laying machine to form a fleece web of a regular cross sectional profile. Between a separate drawing equipment performing the drawing process and the inlet into the fleece laying machine, the nonwoven web may run through a separate, variable buffer storage, which adapts the speed fluctuations of the nonwoven web on the outlet side of the drawing equipment to the intake speed of the fleece laying machine.
    Type: Application
    Filed: August 14, 2002
    Publication date: February 20, 2003
    Inventors: Siegfried Bernhardt, Johann Philipp Dilo, Ing Joachim Leger, Ulrich Wolff
  • Patent number: 5297316
    Abstract: An apparatus for producing fiber material or the like with a prescribable feed weight comprises a conveyor for delivering the fiber flock to a filling stack, which includes a vibrating wall extending in a vertical direction and a displaceable wall, a stationary delivery roller being arranged in a discharge region of the filling stack and a displaceable delivery roller being arranged opposite the stationary roller in the discharge region for controlling the thickness of the layer being deposited on a conveyor. The apparatus also includes a pressure sensor which is provided between the two delivery rollers, which pressure sensor provides signals for controlling the displacement of the displaceable delivery roller, the vibratory frequency for the vibrating wall of the stack and the displacement of the movable wall.
    Type: Grant
    Filed: August 28, 1992
    Date of Patent: March 29, 1994
    Assignee: Spinnbau GmbH
    Inventors: Siegfried Bernhardt, Uwe Dierks, Wolfgang Uliczka, Dietrich Menzel
  • Patent number: 4852217
    Abstract: A carder for manufacturing non-woven materials from fibrous material which includes at least one draw-in roller, and a licker-in roller following the draw-in roller and rotating in the same direction. There are at least two worker rollers of the same diameter following the licker-in roller, the two worker rollers rotating in the same direction and at a greater speed than the licker-in roller. At least one doffing cylinder cooperates with the last of the worker rollers. Further worker rollers follow the two worker rollers, with the various worker rollers being separated by transfer regions between adjacent rollers. The relative speeds and the spacings between adjacent rollers are adjustable to control the proportion of fibrous material that can be returned to previous worker rollers or sent to succeeding worker rollers. An air-guiding box projects into at least one of the transfer regions, the box being adjustable in height and width.
    Type: Grant
    Filed: December 15, 1987
    Date of Patent: August 1, 1989
    Inventors: Siegfried Bernhardt, Alfred Knake, Hans Schmiedgen
  • Patent number: 4723343
    Abstract: Method for the manufacture of formed fabric from fibrous material by means of a carder or the like, whereby the fibrous material is carded upon employment of at least two working rollers of the same diameter running in the same direction as one another, characterized in that the fibrous material is conducted over at least three working rollers residing in mutually adjustable engagement with one another, being conducted thereover under adjustable, partial return storing; also a carder for the implementation thereof.
    Type: Grant
    Filed: September 4, 1986
    Date of Patent: February 9, 1988
    Inventors: Siegfried Bernhardt, Hans Schmiedgen, Dietrich Menzel, Dieter Muller
  • Patent number: 4697311
    Abstract: Apparatus for the manufacture of a nonwoven fabric or the like whose width exceeds the working width of a carder or the like equipped with a plurality of take-down devices, deflection arrangement connecting thereto, and with a pile transport table, characterized by a stationary bottom table arranged between the respective take-down device and the respective deflection device, this bottom table extending over the full width of the nonwoven fabric supplied from the respective take-down device and a conveyor belt which moves in take-down direction of the take-down device and which extends over the full width of the nonwoven fabric supplied by the respective take-down device being arranged above said bottom table at such a distance therefrom that its lower belt portion is in contact with the upperside of the nonwoven fabric lying on the bottom table and conveys this nonwoven fabric from the take-down device to the deflection device; and in that the contact surfaces of the bottom table on the one hand and of the c
    Type: Grant
    Filed: August 6, 1986
    Date of Patent: October 6, 1987
    Inventors: Siegfried Bernhardt, Hans Schmidgen
  • Patent number: 4589167
    Abstract: An apparatus for introducing a relatively loose pile fed from a carder or the like via a conveyor belt or the like into a following roller system, particularly a calender, upon height-reduction of the pile before entry into the roller system, is provided comprising a pile guiding fixture preceding the roller system for compressing the pile while pressing the pile against the conveyor belt.
    Type: Grant
    Filed: March 22, 1985
    Date of Patent: May 20, 1986
    Assignee: Spinnbau GmbH
    Inventor: Siegfried Bernhardt
  • Patent number: 4523350
    Abstract: Carder for manufacturing non-woven formed fabric from fibrous substances comprising a plurality of principal rollers and workers and clearers working with said principal rollers, comprising a draw-in roller (1) and a licker-in (2) running in the same direction and with high drawing, comprising a first principal roller (3) running in a direction opposite the licker-in (2) and with low drawing, comprising at least one pair of rollers consisting of a worker (4) and a clearer (5) cooperating with said first principal roller (3), and comprising a first matting roller (8) running in the same direction as said first principal roller (3) and with low crushing or with low drawing, whereby the draw-in roller (1), the licker-in (2), the principal rollers (3, 9), the matting rollers (8, 12), the doffing cylinders (13, 18) and the second crushing cylinders (15, 20) are driven by respectively separate, independently controllable motors such that a change of the speed of the principal roller (3) effects a change of the spee
    Type: Grant
    Filed: June 28, 1983
    Date of Patent: June 18, 1985
    Assignee: Spinnbau GmbH
    Inventors: Hans Schmiedgen, Siegfried Bernhardt, Otto Strobl, Dietrich Menzel
  • Patent number: 4067086
    Abstract: In a staple fiber card unit composed of a main cylinder and at least one work roller and clearing roller, the output of the unit is maximized by driving the work and clearing rollers at a rate which causes the sum of their peripheral speeds to exceed 250 meters per minute.
    Type: Grant
    Filed: June 18, 1975
    Date of Patent: January 10, 1978
    Assignee: Fried. Krupp Gesellschaft mit beschrankter Haftung
    Inventors: Siegfried Bernhardt, Gerhard Kutscher