Patents by Inventor Joachim Eckhardt
Joachim Eckhardt 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).
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Patent number: 10434696Abstract: The invention relates to an annular die on an extrusion head for producing tubular or sheet-like preforms with an arcuate die gap and with a melt channel delimited by a mandrel and a die body, the cross-sectional profile of the melt channel being variable by way of adjusting elements, the annular die according to the invention being distinguished by the fact that the outer circumference of the melt channel is at least partially delimited directly by at least one radially adjustable slide, that the slide is formed by a number of segments that can be adjusted together from at least one first position into at least one second position, and that the segments in each position form a respectively closed arc portion of the delimitation of the melt channel, the radius of the arc portion being different according to the position of the segments.Type: GrantFiled: June 21, 2018Date of Patent: October 8, 2019Assignee: KAUTEX TEXTRON GMBH & CO. KGInventors: Joachim Eckhardt, Thomas Froitzheim, David Schenkel
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Publication number: 20180297261Abstract: The invention relates to an annular die on an extrusion head for producing tubular or sheet-like preforms with an arcuate die gap and with a melt channel delimited by a mandrel and a die body, the cross-sectional profile of the melt channel being variable by way of adjusting elements, the annular die according to the invention being distinguished by the fact that the outer circumference of the melt channel is at least partially delimited directly by at least one radially adjustable slide, that the slide is formed by a number of segments that can be adjusted together from at least one first position into at least one second position, and that the segments in each position form a respectively closed arc portion of the delimitation of the melt channel, the radius of the arc portion being different according to the position of the segments.Type: ApplicationFiled: June 21, 2018Publication date: October 18, 2018Inventors: Joachim Eckhardt, Thomas Froitzheim, David Schenkel
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Patent number: 10005220Abstract: The invention relates to an annular die (1) on an extrusion head for producing tubular or sheet-like preforms with an arcuate die gap and with a melt channel (4) delimited by a mandrel (2) and a die body (3), the cross-sectional profile of the melt channel (4) being variable by way of adjusting elements, the annular die according to the invention being distinguished by the fact that the outer circumference of the melt channel (4) is at least partially delimited directly by at least one radially adjustable slide (5), that the slide (5) is formed by a number of segments that can be adjusted together from at least one first position into at least one second position, and that the segments in each position form a respectively closed arc portion of the delimitation of the melt channel (4), the radius of the arc portion being different according to the position of the segments.Type: GrantFiled: February 16, 2013Date of Patent: June 26, 2018Assignee: KAUTEX TEXTRON GMBH & CO. KGInventors: Joachim Eckhardt, Thomas Froitzheim, David Schenkel
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Publication number: 20160144549Abstract: The invention discloses a slot die (10) for an extrusion device for the extrusion of preforms (1) in web or strip form from thermoplastic material which comprises a die gap (11) extending transversely to a direction of extrusion and intended for delivering a preform (1). The slot die (10) is characterized in that it comprises at least one adjusting element (12), which is arranged peripherally in the die gap (11), limits a widthwise extent (SB) of the die gap (11) and is mounted continuously displaceably and/or pivotably with respect to the die gap (11). The widthwise extent (SB) of the die gap (11) is dynamically and continuously variable by displacing and/or pivoting the adjusting element (12), so that a widthwise extent (VB) of a preform (1) extruded from the slot die (10) is continuously and infinitely variable over the length of extrusion thereof.Type: ApplicationFiled: June 11, 2014Publication date: May 26, 2016Inventors: Joachim ECKHARDT, David SCHENKEL
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Publication number: 20150021811Abstract: The invention relates to an annular die (1) on an extrusion head for producing tubular or sheet-like preforms with an arcuate die gap and with a melt channel (4) delimited by a mandrel (2) and a die body (3), the cross-sectional profile of the melt channel (4) being variable by way of adjusting elements, the annular die according to the invention being distinguished by the fact that the outer circumference of the melt channel (4) is at least partially delimited directly by at least one radially adjustable slide (5), that the slide (5) is formed by a number of segments that can be adjusted together from at least one first position into at least one second position, and that the segments in each position form a respectively closed arc portion of the delimitation of the melt channel (4), the radius of the arc portion being different according to the position of the segments.Type: ApplicationFiled: February 16, 2013Publication date: January 22, 2015Inventors: Joachim Eckhardt, Thomas Froitzheim, David Schenkel
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Publication number: 20130228573Abstract: The invention relates to a method for the production of hollow bodies from thermoplastic plastic. The method comprises the extrusion of at least two sheet-like preforms consisting of thermoplastic plastic, the introduction of the preforms into a preferably multipart molding die with a molding cavity which at least partially defines the contour of the hollow body to be manufactured, and the shaping of the preforms inside the die, using a vacuum and/or gas pressure in the first heat of the material. The method is distinguished in that at least two preforms to be shaped into a hollow body and to be connected are extruded successively, that is to say sequentially, in time and are shaped simultaneously.Type: ApplicationFiled: April 2, 2013Publication date: September 5, 2013Applicant: Kautex Textron GmbH & Co. KGInventors: Joachim Eckhardt, Matthias Franke-Maintz, Gerd Wolter
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Patent number: 8440132Abstract: The invention relates to a method for the production of hollow bodies from thermoplastic plastic. The method comprises the extrusion of at least two sheet-like preforms consisting of thermoplastic plastic, the introduction of the preforms into a preferably multipart molding die with a molding cavity which at least partially defines the contour of the hollow body to be manufactured, and the shaping of the preforms inside the die, using a vacuum and/or gas pressure in the first heat of the material. The method is distinguished in that at least two preforms to be shaped into a hollow body and to be connected are extruded successively, that is to say sequentially, in time and are shaped simultaneously.Type: GrantFiled: May 7, 2008Date of Patent: May 14, 2013Assignee: Kautex Textron GmbH & Co. KGInventors: Joachim Eckhardt, Matthias Franke-Maintz, Gerd Wolter
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Publication number: 20110129560Abstract: The invention concerns a nozzle for the production of hollow bodies of thermoplastic material by extrusion blow molding. According to the invention, continuous extrusion of at least two preforms in web form of plasticized material is effected by means of a plurality of extrusion devices. The preforms are jointly shaped to form a hollow body in the still plastic condition, that is to say, in the first heat, within a multi-part tool forming a mold cavity. In that case, a wall thickness profile is imparted to at least one preform during the extrusion operation independently of the respective other preform by continuous nozzle gap adjustment during the extrusion operation.Type: ApplicationFiled: February 9, 2011Publication date: June 2, 2011Applicant: KAUTEX TEXTRON GMBH & CO. KGInventors: Matthias Borchert, Gerd Wolter, Harald Lorenz, Dirk Eulitz, Timo Kramer, Thomas Froitzheim, Joachim Eckhardt
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Patent number: 7906062Abstract: The invention concerns a process for the production of hollow bodies of thermoplastic material by extrusion blow molding. In the process according to the invention continuous extrusion of at least two preforms in web form of plasticized material is effected by means of a plurality of extrusion devices. The preforms are jointly shaped to form a hollow body in the still plastic condition, that is to say in the first heat, within a multi-part tool forming a mold cavity. In that case a wall thickness profile is imparted to at least one preform during the extrusion operation independently of the respective other preform by continuous nozzle gap adjustment during the extrusion operation.Type: GrantFiled: June 8, 2007Date of Patent: March 15, 2011Assignee: Kautex Textron GmbH & Co. KGInventors: Matthias Borchert, Gerd Wolter, Harald Lorenz, Dirk Eulitz, Timo Kramer, Thomas Froitzheim, Joachim Eckhardt
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Publication number: 20100282759Abstract: The invention relates to a method for the production of hollow bodies from thermoplastic plastic. The method comprises the extrusion of at least two sheet-like preforms consisting of thermoplastic plastic, the introduction of the preforms into a preferably multipart molding die with a molding cavity which at least partially defines the contour of the hollow body to be manufactured, and the shaping of the preforms inside the die, using a vacuum and/or gas pressure in the first heat of the material. The method is distinguished in that at least two preforms to be shaped into a hollow body and to be connected are extruded successively, that is to say sequentially, in time and are shaped simultaneously.Type: ApplicationFiled: May 7, 2008Publication date: November 11, 2010Applicant: KAUTEX TEXTRON GMBH & CO. KGInventors: Joachim Eckhardt, Matthias Franke-Maintz, Gerd Wolter
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Publication number: 20090102102Abstract: The invention concerns a process for the production of hollow bodies of thermoplastic material by extrusion blow molding. In the process according to the invention continuous extrusion of at least two preforms in web form of plasticized material is effected by means of a plurality of extrusion devices. The preforms are jointly shaped to form a hollow body in the still plastic condition, that is to say in the first heat, within a multi-part tool forming a mold cavity. In that case a wall thickness profile is imparted to at least one preform during the extrusion operation independently of the respective other preform by continuous nozzle gap adjustment during the extrusion operation.Type: ApplicationFiled: June 8, 2007Publication date: April 23, 2009Applicant: KAUTEX TEXTRON GMBH & CO. KGInventors: Matthias Borchert, Gerd Wolter, Harald Lorenz, Dirk Eulitz, Timo Kramer, Thomas Froitzheim, Joachim Eckhardt