Patents by Inventor Paul Bartig
Paul Bartig 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: 12241491Abstract: A self-piercing rivet with a head and a shank which has a shank diameter (Ds), wherein, at a foot end opposite the head, the shank has an axial recess which has an axial depth (LB), wherein the axial recess has a recess volume, wherein a ratio of recess volume to volume of the shank and the head is in the range of 0.06 to 0.08.Type: GrantFiled: December 3, 2021Date of Patent: March 4, 2025Assignee: Newfrey LLCInventors: Dominik Dostal, Matthias Wissling, Andreas Schmitt, Paul Bartig, Joachim Schneider
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Publication number: 20250018460Abstract: A punch-riveting die for a punch-riveting tool for setting a semi-hollow punch rivet into a punch rivet joint. The die comprising a basic body with a sheet metal support surface and a recess for forming an underside of a punch-rivet joint. The recess is arranged rotationally symmetrically to the central axis of the punch-riveting die. The recess having a first annular base, a lower second annular base, and a lowest central cavity extending axially below the second base. A projection rises axially in the central part of the cavity. A first annular wall extends between the first annular base and the sheet metal support surface. A second annular wall extends between the first annular base and the second annular base. A third annular wall extends between the second annular base and the bottom of the cavity.Type: ApplicationFiled: July 10, 2024Publication date: January 16, 2025Inventor: Paul BARTIG
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Publication number: 20240367216Abstract: A joining method for setting a rivet in a workpiece comprises the steps of: providing a setting tool including a frame, a punch, a die, a clamping device, a drive unit, and a control device; providing a predetermined maximal rivet setting speed to the control device; providing the rivet and the workpiece; feeding the rivet into the setting tool; and setting the rivet in the workpiece, the setting step further comprising: moving the punch at a first punch speed; slowing the punch to a second punch speed before the rivet contacts the workpiece; and driving the rivet into the workpiece by moving the punch and monitoring the punch to ensure the punch does not exceed the predetermined maximal rivet setting speed.Type: ApplicationFiled: May 3, 2024Publication date: November 7, 2024Inventors: Paul BARTIG, Michael BLĂ–CHER
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Patent number: 11408457Abstract: A self-piercing rivet for joining workpieces comprises: a head defining a head diameter, and a shank which defining a shank diameter. The shank on a foot end opposite to the head, partially defines an axial recess which has an axial depth. The shank further includes a flat surface portion or a circular cutter on the foot end. And an axial circular recess is partially defined in a transition portion between the head and the shank.Type: GrantFiled: November 9, 2018Date of Patent: August 9, 2022Assignee: NEWFREY LLCInventors: Paul Bartig, Matthias Wissling
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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: 20220090620Abstract: A self-piercing rivet with a head and a shank which has a shank diameter (Ds), wherein, at a foot end opposite the head, the shank has an axial recess which has an axial depth (LB), wherein the axial recess has a recess volume, wherein a ratio of recess volume to volume of the shank and the head is in the range of 0.06 to 0.08.Type: ApplicationFiled: December 3, 2021Publication date: March 24, 2022Inventors: Dominik DOSTAL, Matthias WISSLING, Andreas SCHMITT, Paul BARTIG, Joachim SCHNEIDER
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Publication number: 20210207638Abstract: Self-piercing rivet joint and self-piercing rivet for producing a joining connection between at least two components comprising a rivet head and a rivet shank having a central shank bore comprising a base, the rivet shank comprises a cylindrical shank outer surface and a shank inner surface limiting the central shank bore, the rivet shank comprises an annular piercing end facing away from the rivet head, the shank outer surface has a first diameter (Ds), the central shank bore comprises a bore depth (T) between the base of the central shank bore and the annular piercing end, wherein a ratio of the first diameter (Ds) to the bore depth (T) is in the range of 0.50?Ds/T?0.67.Type: ApplicationFiled: March 19, 2021Publication date: July 8, 2021Inventors: Paul BARTIG, Matthias WISSLING
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Patent number: 10927875Abstract: A punch rivet for joining two workpieces, has a head and a shank. The shank is hollow with a shank internal diameter (D3), a shank external diameter (D1) and a shank end face. On the shank end face is a ring cutting edge with diameter (D4) that is smaller than the external diameter (D1) but greater than the internal diameter (D3). The ring cutting edge is radially spaced both from the shank external diameter (D1) and from the shank internal diameter (D3) by at least 20% of the radial shank wall thickness (M5). And the ratio D3/D1 of shank internal diameter D3 to shank external diameter D1 is smaller than 0.6. And the external diameter (D1) merges into an external circumference of the head by a second profile, which defines an underhead radius (R1), and the ratio of R1 to D1 (R1/D1) is smaller than 0.13.Type: GrantFiled: August 5, 2019Date of Patent: February 23, 2021Assignee: NEWFREY LLCInventors: Matthias Wissling, Frank Wilhelm, Paul Bartig, Paul Hez
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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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Publication number: 20190353192Abstract: A punch rivet for joining two workpieces, has a head and a shank. The shank is hollow with a shank internal diameter (D3), a shank external diameter (D1) and a shank end face. On the shank end face is a ring cutting edge with diameter (D4) that is smaller than the external diameter (D1) but greater than the internal diameter (D3). The ring cutting edge is radially spaced both from the shank external diameter (D1) and from the shank internal diameter (D3) by at least 20% of the radial shank wall thickness (M5). And the ratio D3/D1 of shank internal diameter D3 to shank external diameter D1 is smaller than 0.6. And the external diameter (D1) merges into an external circumference of the head by a second profile, which defines an underhead radius (R1), and the ratio of R1 to D1 (R1/D1) is smaller than 0.13.Type: ApplicationFiled: August 5, 2019Publication date: November 21, 2019Inventors: Matthias Wissling, Frank Wilhelm, Paul Bartig, Paul Hez
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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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Patent number: 10371190Abstract: A punch rivet for joining two workpieces, has a head and a shank. The shank is a hollow shank with a shank internal diameter (D3), a shank external diameter (D1) and a shank end face. On the shank end face is a ring cutting edge with the diameter (D4) that is smaller than the shank external diameter (D1) but greater than the shank internal diameter (D3). The ring cutting edge is radially spaced both from the shank external diameter (D1) and from the shank internal diameter (D3) by at least 20% of the radial shank wall thickness (M5). And the ratio D3/D1 of shank internal diameter D3 to shank external diameter D1 is smaller than 0.6.Type: GrantFiled: August 11, 2017Date of Patent: August 6, 2019Assignee: NEWFREY LLCInventors: Matthias Wissling, Frank Wilhelm, Paul Bartig, Paul Hez
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Publication number: 20190078601Abstract: A self-piercing rivet for joining workpieces comprises: a head defining a head diameter, and a shank which defining a shank diameter. The shank on a foot end opposite to the head, partially defines an axial recess which has an axial depth. The shank further includes a flat surface portion or a circular cutter on the foot end. And an axial circular recess is partially defined in a transition portion between the head and the shank.Type: ApplicationFiled: November 9, 2018Publication date: March 14, 2019Inventors: Paul BARTIG, Matthias WISSLING
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Patent number: 9919356Abstract: A punch-riveting die comprises a basic body, which has a recess for forming an underside of a punch-rivet joint, the recess having a base and an annular wall. In a central region of the base, the die includes an annular radial-flow inhibiting device, which inhibiting device limits a radial material flow out of the inner region of the annular radial-flow inhibiting device.Type: GrantFiled: January 12, 2015Date of Patent: March 20, 2018Assignee: NEWFREY LLCInventors: Paul Bartig, Marco Wiessner
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Publication number: 20180058488Abstract: A self-piercing rivet for joining a stack of at least two sheets of material. The rivet comprises a rivet head rotationally symmetrical to a central axis, and the rivet head includes a top side, a bottom side opposite the top side, and a cylindrical head exterior surface of a head diameter. The rivet head has a thickness (th) along the central axis. The rivet further comprises a rivet shank rotationally symmetrical to the central axis and including a cylindrical shank exterior surface and a cylindrical shank interior surface. The shank interior surface and the bottom side of the rivet head partially define a central shank hole that is open in an axial direction opposite to the bottom side of the rivet head. The rivet has an axial length (La) along the central axis, and the ratio between the head thickness and the axial length is between 1/7 and 1/22.Type: ApplicationFiled: August 23, 2017Publication date: March 1, 2018Inventors: Matthias WISSLING, Paul BARTIG
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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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Publication number: 20170343027Abstract: A punch rivet for joining two workpieces, has a head and a shank. The shank is a hollow shank with a shank internal diameter (D3), a shank external diameter (D1) and a shank end face. On the shank end face is a ring cutting edge with the diameter (D4) that is smaller than the shank external diameter (D1) but greater than the shank internal diameter (D3). The ring cutting edge is radially spaced both from the shank external diameter (D1) and from the shank internal diameter (D3) by at least 20% of the radial shank wall thickness (M5). And the ratio D3/D1 of shank internal diameter D3 to shank external diameter D1 is smaller than 0.6.Type: ApplicationFiled: August 11, 2017Publication date: November 30, 2017Inventors: Matthias WISSLING, Frank WILHELM, Paul BARTIG, Paul HEZ
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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