Patents by Inventor Hendrik Jahnle
Hendrik Jahnle 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: 20240059016Abstract: The invention relates to a method (200) for providing a printable melt (12) for operating a printhead (100) for a 3D printer. According to the invention, the method (200) comprises the following steps: filling (210) a cavity (40) with printable material (10) using a supply device (2), closing (220) an opening cross-section (21) of a piston bushing (4) by advancing a piston (3) from a starting position (3a) in the direction of a nozzle (8) of the printhead (100), converting (230) the material from a solid phase (10) to a liquid phase (12) via a plastic phase (11), solidifying (240) the material (10, 11, 12), ascertaining (250) a spring constant of the liquid phase (12), and preparing (260) the liquid phase (12) for a printing process. The invention also relates to a printhead (100) for a 3D printer for carrying out the method (200) according to the invention.Type: ApplicationFiled: March 17, 2022Publication date: February 22, 2024Inventor: Hendrik Jahnle
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Publication number: 20230415420Abstract: A device for the additive manufacturing of a three-dimensional workpiece. The device includes a build chamber, at least one printhead, a receiving device for receiving the three-dimensional workpiece, an air-circulation system for controlling the temperature of and conveying a gaseous fluid, and an adjustment device including an x-y axis system with a printhead receptacle and a z-axis system. The air-circulation system includes a device for controlling the temperature of and conveying a gaseous fluid, an inlet device including at least two inlet openings connected to the build chamber, and an outlet device integrated in the z-axis system and disposed in such a way that it can be adjusted using the axis system. A method for the additive manufacturing of a three-dimensional workpiece using the device is also described.Type: ApplicationFiled: November 22, 2021Publication date: December 28, 2023Inventors: Hendrik Jahnle, Hans Bargen
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Publication number: 20230339180Abstract: The invention relates to a 3D printer (1) comprising a temperature-controllable, thermally insulated assembly space (2) for an object (3) to be produced, and at least one print head (4a, 4b) which is movable along at least two axes (x, y) and can add a powdered, pasty, or liquid material locally to the object (3) to be produced; the thermal insulation of the assembly space (2) comprises a cover (6, 6a-6c) which is in at least two parts and is movable with the print head (4a, 4b); at least a first part (6a) of this cover (6) is fixedly coupled to the movement of the print head along the two axes (x, y), and at least a second part (6b) of this cover (6) can be coupled to the first part (6a) by means of at least one releasable coupling means (7a, 7b).Type: ApplicationFiled: June 23, 2021Publication date: October 26, 2023Inventors: Hans Bargen, Hendrik Jahnle
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Patent number: 11584072Abstract: The invention relates to a print head (10) for a 3D printer (1), comprising a feed section (11) having a feeder (12) for a starting material (21) that is variable in the viscosity thereof; a plasticizing zone (14) having a heater (15) and an outlet opening (16) for the liquid phase (22) of the starting material (21); and a conveying device (30) for conveying the starting material (21) from the feed section (11) to the plasticizing zone (14), wherein the conveying device (30) comprises a piston (31) that can be inserted into the feed section (11). The invention is characterized in that the piston (31) has a first piston portion (5) facing the plasticizing zone (14) and having a guide surface (9), through which the piston (31) is guided in a bore (7) of the print head (10).Type: GrantFiled: October 17, 2018Date of Patent: February 21, 2023Assignee: Robert Bosch GmbHInventors: Hendrik Jahnle, Norman Lung
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Publication number: 20230040782Abstract: The invention relates to a print head (10) for a 3D printer (1), comprising a feed (11) for a raw material (20) having variable viscosity and a nozzle (14) which tapers in the flow direction of a liquid phase (22) of the raw material (20) in order to output said liquid phase (22) through an outlet opening (15), wherein at least one pressure generator (12) is provided in order to raise the pressure of at least part of the liquid phase (22) to a base pressure, and wherein at least one pressure modulator (13) connected between the pressure generator (12) and the nozzle (14) is provided in order to modulate the pressure of at least part of the liquid phase (22) about the base pressure.Type: ApplicationFiled: November 11, 2020Publication date: February 9, 2023Inventor: Hendrik Jahnle
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Publication number: 20230011265Abstract: The invention relates to a printing device (10) for a 3D printer. The printing device comprises a metering unit (18) for melting and plasticizing a material (38) to be printed and a delivery unit (14) for printing the material (38) provided via the metering unit (18). The metering unit (18) and the delivery unit (14) are arranged separately from each other and can be connected to each other, wherein the delivery unit (14) can be transported to the metering unit (18) in order to receive material (38) and, in order to connect the delivery unit (14) to the metering unit (18), a nozzle (74) of the delivery unit (14) and a coupling point (62) of the metering unit (18) come into contact with each other.Type: ApplicationFiled: November 13, 2020Publication date: January 12, 2023Inventors: Hendrik Jahnle, Hans Bargen, Victor Roman
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Patent number: 11472078Abstract: The invention relates to a method (100) for establishing a connection between an inlay (1, 1?, 1?) and a polymer (3) at least partially surrounding the inlay, wherein a monomer (2) is brought into contact (110) with the inlay (1, 1?, 1?) and is subsequently polymerized (120) to form the polymer (3), wherein the temperature TE of the inlay (1, 1?, 1?) is increased (130) at least briefly at least to that temperature TM that the monomer (2) assumes at its maximum during its exothermic polymerization (120) to form the polymer (3), and/or that ensures that the heat flow always runs from the inlay (1, 1?, 1?) to the monomer (2). The invention also relates to a method (200), (300), (400) for the sealing integration of an inlay (1, 1?, 1?) in a component (5).Type: GrantFiled: October 2, 2017Date of Patent: October 18, 2022Assignee: Robert Bosch GmbHInventors: Hendrik Jahnle, Bernd Beiermeister, Markus Menacher, Norman Lung, Victor Roman
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Patent number: 11446865Abstract: The invention relates to a print head (10) for a 3D printer (1), comprising a feed zone (11) with a feed (12) for feedstock (20) with variable viscosity, a melting zone (14) comprising a heating element (15) and an outlet opening (16) for the liquid phase (22) of said feedstock (20), as well as a conveyor device (30) for conveying the feedstock (20) from the feed zone (11) into the melting zone (14), said conveyor device (30) comprising a plunger (31) that can be inserted into said feed zone (11).Type: GrantFiled: September 21, 2017Date of Patent: September 20, 2022Assignee: Robert Bosch GmbHInventors: Markus Streicher, Christian Dueformantel, Hendrik Jahnle, Norman Lung, Sebastian Herbster, Victor Roman
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Patent number: 11260587Abstract: Printhead (10) for a 3D printer, comprising an operational volume (17) for holding feedstock (20), the viscosity of which can change, the operational volume (17) being variable by moving a plunger (31, 31a, 31b) and being provided with an outlet (16) through which the feedstock (20) can be extruded by moving the plunger (31, 31a, 31b), the plunger (31, 31a, 31b) being equipped with temperature control means (36).Type: GrantFiled: October 30, 2017Date of Patent: March 1, 2022Assignee: Robert Bosch GmbHInventors: Hendrik Jahnle, Norman Lung, Victor Roman
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Publication number: 20210187842Abstract: The invention relates to a print head (10) for a 3D printer (1), comprising a feed section (11) having a feeder (12) for a starting material (21) that is variable in the viscosity thereof; a plasticizing zone (14) having a heater (15) and an outlet opening (16) for the liquid phase (22) of the starting material (21); and a conveying device (30) for conveying the starting material (21) from the feed section (11) to the plasticizing zone (14), wherein the conveying device (30) comprises a piston (31) that can be inserted into the feed section (11). The invention is characterized in that the piston (31) has a first piston portion (5) facing the plasticizing zone (14) and having a guide surface (9), through which the piston (31) is guided in a bore (7) of the print head (10).Type: ApplicationFiled: October 17, 2018Publication date: June 24, 2021Inventors: Hendrik Jahnle, Norman Lung
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Patent number: 10894359Abstract: Extruder (1) for a 3D printer, comprising at least one outer nozzle (2) and a conveying worm (3) for feeding liquid and/or plasticized starting material (4) into the interior chamber (21) of the outer nozzle (2), wherein an inner nozzle (5) is arranged in the interior chamber (21) of the outer nozzle (2), wherein the interior chamber (51) of the inner nozzle (5) is connected to the interior chamber (21) of the outer nozzle (2) via at least one duct (52, 52a, 52b) which is continuous for the starting material (4), and wherein the inner nozzle (5) is mounted such that it can be moved linearly along the longitudinal axis (2a) of the outer nozzle (2). A 3D printer (100) having the extruder (1) and means (8) for generating a relative movement between the extruder (1) and a construction surface (101), on which the object (102) to be manufactured is produced.Type: GrantFiled: June 21, 2017Date of Patent: January 19, 2021Assignee: Robert Bosch GmbHInventors: Antonius Gress, Hendrik Jahnle, Jan Tremel, Markus Feigl
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Publication number: 20200223127Abstract: The invention relates to a method (100) for producing a three-dimensional object (10), having the following steps: a printing structure (11), which defines an interior (12), is produced (110) from a printing material (21) by means of 3-D printing; a filling material (22), which comprises at least one liquid or pasty monomer (23), is introduced (120) into the interior (12); the monomer (23) is polymerized (130) to form a polymer (24).Type: ApplicationFiled: October 4, 2017Publication date: July 16, 2020Inventors: Hendrik Jahnle, Florian Fischer, Norman Lung
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Publication number: 20200189187Abstract: The invention relates to a print head (10) for a 3D printer (1), comprising a feed zone (11) with a feed (12) for feedstock (20) with variable viscosity, a melting zone (14) comprising a heating element (15) and an outlet opening (16) for the liquid phase (22) of said feedstock (20), as well as a conveyor device (30) for conveying the feedstock (20) from the feed zone (11) into the melting zone (14), said conveyor device (30) comprising a plunger (31) that can be inserted into said feed zone (11).Type: ApplicationFiled: September 21, 2017Publication date: June 18, 2020Inventors: Markus Streicher, Christian Dueformantel, Hendrik Jahnle, Norman Lung, Sebastian Herbster, Victor Roman
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Publication number: 20200039126Abstract: The invention relates to a method (100) for establishing a connection between an inlay (1, 1?, 1?) and a polymer (3) at least partially surrounding the inlay, wherein a monomer (2) is brought into contact (110) with the inlay (1, 1?, 1?) and is subsequently polymerized (120) to form the polymer (3), wherein the temperature TE of the inlay (1, 1?, 1?) is increased (130) at least briefly at least to that temperature TM that the monomer (2) assumes at its maximum during its exothermic polymerization (120) to form the polymer (3), and/or that ensures that the heat flow always runs from the inlay (1, 1?, 1?) to the monomer (2). The invention also relates to a method (200), (300), (400) for the sealing integration of an inlay (1, 1?, 1?) in a component (5).Type: ApplicationFiled: October 2, 2017Publication date: February 6, 2020Inventors: Hendrik Jahnle, Bernd Beiermeister, Markus Menacher, Norman Lung, Victor Roman
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Publication number: 20200039146Abstract: Printhead (10) for a 3D printer, comprising an operational volume (17) for holding feedstock (20), the viscosity of which can change, the operational volume (17) being variable by moving a plunger (31, 31a, 31b) and being provided with an outlet (16) through which the feedstock (20) can be extruded by moving the plunger (31, 31a, 31b), the plunger (31, 31a, 31b) being equipped with temperature control means (36).Type: ApplicationFiled: October 30, 2017Publication date: February 6, 2020Inventors: Hendrik Jahnle, Norman Lung, Victor Roman
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Publication number: 20190263061Abstract: Extruder (1) for a 3D printer, comprising at least one outer nozzle (2) and a conveying worm (3) for feeding liquid and/or plasticized starting material (4) into the interior chamber (21) of the outer nozzle (2), wherein an inner nozzle (5) is arranged in the interior chamber (21) of the outer nozzle (2), wherein the interior chamber (51) of the inner nozzle (5) is connected to the interior chamber (21) of the outer nozzle (2) via at least one duct (52, 52a, 52b) which is continuous for the starting material (4), and wherein the inner nozzle (5) is mounted such that it can be moved linearly along the longitudinal axis (2a) of the outer nozzle (2). A 3D printer (100) having the extruder (1) and means (8) for generating a relative movement between the extruder (1) and a construction surface (101), on which the object (102) to be manufactured is produced.Type: ApplicationFiled: June 21, 2017Publication date: August 29, 2019Inventors: Antonius Gress, Hendrik Jahnle, Jan Tremel, Markus Feigl