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: 20230374710Abstract: 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: ApplicationFiled: September 2, 2021Publication date: November 23, 2023Inventors: Siegfried BERNHARDT, Volkmar SCHULZE
-
Publication number: 20220144189Abstract: A needled nonwoven for the manufacture of, in particular, textile wheel arch liners, has different materials in its individual layers across the thickness.Type: ApplicationFiled: February 18, 2020Publication date: May 12, 2022Applicant: ADLER PELZER HOLDING GMBHInventors: Siegfried BERNHARDT, Volkmar SCHULZE, Matthias DICKERT, Ray SINGH, Andreas HART
-
Publication number: 20220145500Abstract: 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: ApplicationFiled: February 18, 2020Publication date: May 12, 2022Applicant: ADLER PELZER HOLDING GMBHInventors: Siegfried BERNHARDT, Volkmar SCHULZE
-
Publication number: 20200407887Abstract: 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: ApplicationFiled: January 14, 2019Publication date: December 31, 2020Inventors: Siegfried Bernhardt, Volkmar Schulze
-
Patent number: 7779512Abstract: 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: GrantFiled: June 20, 2008Date of Patent: August 24, 2010Assignee: Oskar Dilo Maschinenfabrik KGInventors: Siegfried Bernhardt, Robert Kamprath, Heinz-Werner Naumann-Burghardt
-
Publication number: 20080313860Abstract: 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: ApplicationFiled: June 20, 2008Publication date: December 25, 2008Applicant: OSKAR DILO MASCHINENFABRIK KGInventors: Siegfried Bernhardt, Robert Kamprath, Heinz-Werner Naumann-Burghardt
-
Patent number: 7152278Abstract: 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: GrantFiled: March 25, 2004Date of Patent: December 26, 2006Assignee: Spinnbau GmbHInventors: Siegfried Bernhardt, Robert Kamprath, Heinz-Werner Naumann-Burghardt
-
Patent number: 7003853Abstract: 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: GrantFiled: July 27, 2004Date of Patent: February 28, 2006Assignee: Spinnbau GmbHInventors: Siegfried Bernhardt, Robert Kamprath, Heinz-Werner Naumann-Burghardt
-
Publication number: 20050022343Abstract: 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: ApplicationFiled: July 27, 2004Publication date: February 3, 2005Inventors: Siegfried Bernhardt, Robert Kamprath, Heinz-Werner Naumann-Burghardtz
-
Patent number: 6729465Abstract: 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: GrantFiled: September 25, 2002Date of Patent: May 4, 2004Assignee: Spinnbau GmbHInventors: Siegfried Bernhardt, Robert Kamprath, Heinz-Werner Naumann-Burghardt
-
Patent number: 6662407Abstract: 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: GrantFiled: August 14, 2002Date of Patent: December 16, 2003Assignee: Oskar Dilo Maschinenfabrik KGInventors: Siegfried Bernhardt, Johann Philipp Dilo, Joachim Leger, Ulrich Wolf
-
Publication number: 20030057057Abstract: 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: ApplicationFiled: September 25, 2002Publication date: March 27, 2003Inventors: Siegfried Bernhardt, Robert Kamprath, Heinz-Werner Naumann-Burghardt
-
Publication number: 20030033691Abstract: 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: ApplicationFiled: August 14, 2002Publication date: February 20, 2003Inventors: Siegfried Bernhardt, Johann Philipp Dilo, Ing Joachim Leger, Ulrich Wolff
-
Patent number: 5297316Abstract: 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: GrantFiled: August 28, 1992Date of Patent: March 29, 1994Assignee: Spinnbau GmbHInventors: Siegfried Bernhardt, Uwe Dierks, Wolfgang Uliczka, Dietrich Menzel
-
Patent number: 4852217Abstract: 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: GrantFiled: December 15, 1987Date of Patent: August 1, 1989Inventors: Siegfried Bernhardt, Alfred Knake, Hans Schmiedgen
-
Patent number: 4723343Abstract: 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: GrantFiled: September 4, 1986Date of Patent: February 9, 1988Inventors: Siegfried Bernhardt, Hans Schmiedgen, Dietrich Menzel, Dieter Muller
-
Patent number: 4697311Abstract: 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 cType: GrantFiled: August 6, 1986Date of Patent: October 6, 1987Inventors: Siegfried Bernhardt, Hans Schmidgen
-
Patent number: 4589167Abstract: 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: GrantFiled: March 22, 1985Date of Patent: May 20, 1986Assignee: Spinnbau GmbHInventor: Siegfried Bernhardt
-
Patent number: 4523350Abstract: 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 speeType: GrantFiled: June 28, 1983Date of Patent: June 18, 1985Assignee: Spinnbau GmbHInventors: Hans Schmiedgen, Siegfried Bernhardt, Otto Strobl, Dietrich Menzel
-
Patent number: 4067086Abstract: 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: GrantFiled: June 18, 1975Date of Patent: January 10, 1978Assignee: Fried. Krupp Gesellschaft mit beschrankter HaftungInventors: Siegfried Bernhardt, Gerhard Kutscher