Patents by Inventor Steffen Hofmann
Steffen Hofmann 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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Publication number: 20240085893Abstract: A method serves to operate a transport system, in particular a multi-carrier system, that comprises a plurality of linear motors that are arranged in a row and have a guide track, a plurality of transport elements that can be moved along the guide track by means of the linear motors, and a plurality of stations along the guide track, wherein each of the transport elements is associated with one of the stations.Type: ApplicationFiled: June 20, 2023Publication date: March 14, 2024Applicant: Schneider Electric Industries SASInventors: Steffen Hofmann, Jürgen Heid
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Publication number: 20230365000Abstract: A method of operating a transport system, in particular a multi-carrier system, which comprises a plurality of linear motors, which are arranged in a row and have a guide track, and a plurality of transport elements that are movable along the guide track by means of the linear motors, has the following steps: generating a travel job for a first one of the transport elements for travelling along at least a part section of the guide track, generating a first movement profile of the first transport element for the travel job based on predetermined movement characteristic values, matching the first movement profile with a second movement profile of a second transport element directly in front of the first transport element and determining whether a predetermined minimum distance between the first transport element and the second transport element is fallen below during the execution of the travel job, updating the first movement profile to maintain the minimum distance if it has been determined that the minimuType: ApplicationFiled: May 9, 2023Publication date: November 16, 2023Applicant: Schneider Electric Industries SASInventors: Steffen Hofmann, Jurgen Heid
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Patent number: 11333187Abstract: A riveted joint comprising: an upper workpiece and a lower workpiece, and a self-piercing rivet. The rivet in an undeformed state, before the creation of the riveted joint, included: a head defining a head diameter (DH); a shank defining a shank diameter (DS); and a foot end opposite the head. Radially outward at the foot end is a flat surface facing away from the head; and an axial recess located radially inward of the flat surface, partly defined in the foot end, open axially away from the head, and frustoconical in longitudinal cross section. The axial recess defining an axial depth (LB). The ratio of recess axial depth (LB) to shank diameter (DS) is less than 0.3. And in a deformed state, after the creation of the riveted joint, the rivet extends through the first workpiece and penetrates the second workpiece; and the head bears against the upper surface.Type: GrantFiled: January 3, 2020Date of Patent: May 17, 2022Assignee: NEWFREY LLCInventors: Steffen Hofmann, Paul Bartig, Frank Wilhelm, Matthias Wissling
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Publication number: 20220145539Abstract: A method for monitoring an industrial plant. In a first part of the industrial plant, first parameters are provided. The industrial plant is used to produce and/or process a fibrous material web. Second parameters are provided in a second part. The parameters are stored, preferentially as time series. In the case of a web break in the second part, the second parameters are first analyzed for a second anomaly. If no second anomaly can be detected, the first parameters are analyzed for a first anomaly. During the analysis, the parameters which were stored in a time range before the web break are preferably examined. If a first or second anomaly is detected, these, and optionally measures to avoid such web breaks, are displayed to the user. Optionally, the first parameters and/or the second parameters can be set so as to avoid future web breaks.Type: ApplicationFiled: February 12, 2020Publication date: May 12, 2022Applicant: Siemens Energy Global GmbH & Co. KGInventors: Stefan Ingo Meier, Steffen Hofmann, Jürgen Mielke
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Patent number: 10717077Abstract: The invention relates to a pipetting device, more particularly a pipette or repeater pipette, for pipetting fluid laboratory samples, comprising: an electric control apparatus, by means of which a pipetting process is electrically controllable, a movable part, by means of the movement of which the fluid sample is pipettable, an electrically actuatable motor apparatus, by means of which the movement of the movable part is driveable depending on at least one first speed value defining the speed of the movable part, a measuring apparatus, by means of which at least one measured value which is influenced by the drag caused when pipetting the fluid sample is measurable, wherein the electric control apparatus is configured for the purposes of the at least one first speed value being fixable by the electric control apparatus, depending on at least one measured value. The invention furthermore relates to a method for operating the pipetting device.Type: GrantFiled: December 3, 2015Date of Patent: July 21, 2020Inventors: Burkhardt Reichmuth, Herbert Belgardt, Steffen Hofmann
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Publication number: 20200141439Abstract: A riveted joint comprising: an upper workpiece and a lower workpiece, and a self-piercing rivet. The rivet in an undeformed state, before the creation of the riveted joint, included: a head defining a head diameter (DH); a shank defining a shank diameter (DS); and a foot end opposite the head. Radially outward at the foot end is a flat surface facing away from the head; and an axial recess located radially inward of the flat surface, partly defined in the foot end, open axially away from the head, and frustoconical in longitudinal cross section. The axial recess defining an axial depth (LB). The ratio of recess axial depth (LB) to shank diameter (DS) is less than 0.3. And in a deformed state, after the creation of the riveted joint, the rivet extends through the first workpiece and penetrates the second workpiece; and the head bears against the upper surface.Type: ApplicationFiled: January 3, 2020Publication date: May 7, 2020Inventors: Steffen HOFMANN, Paul BARTIG, Frank WILHELM, Matthias WISSLING
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Patent number: 10550873Abstract: A riveted joint comprising: an upper workpiece and a lower workpiece, and a self-piercing rivet. The rivet in an undeformed state, before the creation of the riveted joint, included: a head defining a head diameter (DH); a shank defining a shank diameter (DS); and a foot end opposite the head. Radially outward at the foot end is a flat surface facing away from the head; and an axial recess located radially inward of the flat surface, partly defined in the foot end, open axially away from the head, and frustoconical in longitudinal cross section. The axial recess defining an axial depth (LB). The ratio of recess axial depth (LB) to shank diameter (DS) is less than 0.3. And in a deformed state, after the creation of the riveted joint, the rivet extends through the first workpiece and penetrates the second workpiece; and the head bears against the upper surface.Type: GrantFiled: October 30, 2017Date of Patent: February 4, 2020Assignee: NEWFREY LLCInventors: Steffen Hofmann, Paul Bartig, Frank Wilhelm, Matthias Wissling
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Patent number: 10465730Abstract: A riveted joint comprising: an upper workpiece and a lower workpiece, and a self-piercing rivet. The rivet in an undeformed state, before the creation of the riveted joint, included: a head defining a head diameter (DH); a shank defining a shank diameter (DS); and a foot end opposite the head. Radially outward at the foot end is a flat surface facing away from the head; and an axial recess located radially inward of the flat surface, partly defined in the foot end, open axially away from the head, and frustoconical in longitudinal cross section. The axial recess defining an axial depth (LB). The ratio of recess axial depth (LB) to shank diameter (DS) is less than 0.3. And in a deformed state, after the creation of the riveted joint, the rivet extends through the first workpiece and penetrates the second workpiece; and the head bears against the upper surface.Type: GrantFiled: June 25, 2019Date of Patent: November 5, 2019Assignee: NEWFREY LLCInventors: Steffen Hofmann, Paul Bartig, Frank Wilhelm, Matthias Wissling
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Publication number: 20190309781Abstract: A riveted joint comprising: an upper workpiece and a lower workpiece, and a self-piercing rivet. The rivet in an undeformed state, before the creation of the riveted joint, included: a head defining a head diameter (DH); a shank defining a shank diameter (DS); and a foot end opposite the head. Radially outward at the foot end is a flat surface facing away from the head; and an axial recess located radially inward of the flat surface, partly defined in the foot end, open axially away from the head, and frustoconical in longitudinal cross section. The axial recess defining an axial depth (LB). The ratio of recess axial depth (LB) to shank diameter (DS) is less than 0.3. And in a deformed state, after the creation of the riveted joint, the rivet extends through the first workpiece and penetrates the second workpiece; and the head bears against the upper surface.Type: ApplicationFiled: June 25, 2019Publication date: October 10, 2019Inventors: Steffen HOFMANN, Paul BARTIG, Frank WILHELM, Matthias WISSLING
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Publication number: 20180045237Abstract: A riveted joint comprising: an upper workpiece and a lower workpiece, and a self-piercing rivet. The rivet in an undeformed state, before the creation of the riveted joint, included: a head defining a head diameter (DH); a shank defining a shank diameter (DS); and a foot end opposite the head. Radially outward at the foot end is a flat surface facing away from the head; and an axial recess located radially inward of the flat surface, partly defined in the foot end, open axially away from the head, and frustoconical in longitudinal cross section. The axial recess defining an axial depth (LB). The ratio of recess axial depth (LB) to shank diameter (DS) is less than 0.3. And in a deformed state, after the creation of the riveted joint, the rivet extends through the first workpiece and penetrates the second workpiece; and the head bears against the upper surface.Type: ApplicationFiled: October 30, 2017Publication date: February 15, 2018Inventors: Steffen HOFMANN, Paul BARTIG, Frank WILHELM, Matthias WISSLING
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Patent number: 9803675Abstract: A self-piercing rivet for connecting high-strength steels. The rivet having a head which has a head diameter (DH); a shank which has a shank diameter (DS); and, located at the foot end of the shank opposite the head, the shank has radially outward a flat surface section and radially inward an axial recess defining an axial depth (LB). The ratio of axial depth (LB) of the recess to the shank diameter (DS) is smaller than 0.3.Type: GrantFiled: June 10, 2016Date of Patent: October 31, 2017Assignee: NEWFREY LLCInventors: Steffen Hofmann, Paul Bartig, Frank Wilhelm, Matthias Wissling
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Publication number: 20160281757Abstract: A self-piercing rivet for connecting high-strength steels. The rivet having a head which has a head diameter (DH); a shank which has a shank diameter (DS); and, located at the foot end of the shank opposite the head, the shank has radially outward a flat surface section and radially inward an axial recess defining an axial depth (LB). The ratio of axial depth (LB) of the recess to the shank diameter (DS) is smaller than 0.3.Type: ApplicationFiled: June 10, 2016Publication date: September 29, 2016Inventors: Steffen HOFMANN, Paul BARTIG, Frank WILHELM, Matthias WISSLING
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Patent number: 8661920Abstract: A handheld pipetting apparatus for metering liquids, with a handleable pipette housing, at least one accommodation for a fastening portion of a syringe cylinder of a syringe, at least one plunger accommodation in an accommodation body for a plunger fastening portion of a syringe plunger of the syringe, syringe and plunger gripping levers for detachably holding the fastening portion in the accommodation and the plunger fastening portion in the plunger accommodation, at least one displacement device with a displacement chamber and a shiftable chamber wall limiting the same, for displacing a fluid; at least one seat for detachably holding a pipette point, a channel, connecting a hole in the seat with a displacement chamber, and at least one drive device, which is connected to couplable with the accommodation body the and/or the chamber wall, for shifting the accommodation body with respect to the accommodation, the and/or the chamber wall with respect to the displacement chamber.Type: GrantFiled: September 22, 2010Date of Patent: March 4, 2014Assignee: Eppendorf AGInventors: Peter Molitor, Karl-Friedrich Andres, Steffen Hofmann, Heinz-Gerhard Köhn
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Publication number: 20110072915Abstract: A handheld pipetting apparatus for metering liquids, with a handleable pipette housing, at least one accommodation for a fastening portion of a syringe cylinder of a syringe, at least one plunger accommodation in an accommodation body for a plunger fastening portion of a syringe plunger of the syringe, fastening means for detachably holding the fastening portion in the accommodation and the plunger fastening portion in the plunger accommodation, at least one displacement device with a displacement chamber and a shiftable chamber wall limiting the same, for displacing a fluid; at least one seat for detachably holding a pipette point, a channel, connecting a hole in the seat with a displacement chamber, and at least one drive device, which is connected to and/or couplable with the accommodation body and/or the chamber wall, for shifting the accommodation body with respect to the accommodation, and/or the chamber wall with respect to the displacement chamber.Type: ApplicationFiled: September 22, 2010Publication date: March 31, 2011Applicant: EPPENDORF AGInventors: Peter Molitor, Karl Friedrich Andres, Steffen Hofmann, Heinz-Gerhard Kohn
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Patent number: 7627747Abstract: A method of performing encrypted WLAN communication is provided that comprises the steps of performing a connection set-up for the encrypted WLAN communication and performing data frame encapsulation and/or decapsulation during the encrypted WLAN communication. The connection set-up is performed by executing software-implemented instructions, and the data frame encapsulation and/or decapsulation is performed by operating single-purpose hardware. In embodiments, corresponding single-purpose hardware devices, integrated circuit chips, computer program products and computer systems are provided. The embodiments may provide an improved hardware/software architecture for 802.11i security enhancement.Type: GrantFiled: April 2, 2004Date of Patent: December 1, 2009Assignee: Advanced Micro Devices, Inc.Inventors: Uwe Eckhardt, Matthias Baer, Ralf Flemming, Steffen Hofmann
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Publication number: 20050172119Abstract: A method of performing encrypted WLAN communication is provided that comprises the steps of performing a connection set-up for the encrypted WLAN communication and performing data frame encapsulation and/or decapsulation during the encrypted WLAN communication. The connection set-up is performed by executing software-implemented instructions, and the data frame encapsulation and/or decapsulation is performed by operating single-purpose hardware. In embodiments, corresponding single-purpose hardware devices, integrated circuit chips, computer program products and computer systems are provided. The embodiments may provide an improved hardware/software architecture for 802.11i security enhancement.Type: ApplicationFiled: April 2, 2004Publication date: August 4, 2005Inventors: Uwe Eckhardt, Matthias Baer, Ralf Flemming, Steffen Hofmann