Patents by Inventor Michael Mielke
Michael Mielke 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: 20240100760Abstract: Methods, apparatuses, systems, and techniques relate to an extruder unit for producing preforms with a tube-like wall from a polymer melt and an associated extrusion process. The extruder unit has a receptacle for an exchangeable dispensing tool, it furthermore comprises at least two different and alternately usable profiling devices. These profiling devices have outlet-side fastening structures, which correspond in the various profiling devices and form the receptacle for the exchangeable dispensing tool, so that the profiling devices can be connected alternately to the same dispensing tool. In this way, any dispensing tool, depending on the wish of the customer, can be operated with different profiling devices, in particular, on the one hand, to carry out profiling by mandrel body movement or profiling by nozzle body movement.Type: ApplicationFiled: October 15, 2020Publication date: March 28, 2024Inventors: Maurice MIELKE, Michael MÜLLER
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Publication number: 20240092009Abstract: Methods, apparatuses, systems, and techniques relate to a tube-forming device for an extruder unit or an extrusion device and a tube-forming process. The tube-forming device comprises at least one shaping sleeve, which is designed to shape a supplied stream of polymer melt from a substantially strand-like cross section into a tubular cross section. The shaping sleeve has a guiding passage embedded in the sleeve wall, such that the guiding passage is a cavity which lies within the sleeve wall and, in the radial direction of the shaping sleeve, is enclosed in a sealed manner with respect to the outer surfaces.Type: ApplicationFiled: October 15, 2020Publication date: March 21, 2024Inventors: Maurice MIELKE, Michael MÜLLER
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Patent number: 11870201Abstract: A monitoring device may receive sensor information, associated with an optical device included in a high-power fiber laser, from a set of sensors associated with the optical device. The monitoring device may determine, based on the sensor information, a set of operational properties of the optical device. The set of operational properties may include: a health property that describes a health of one or more components of the optical device, a degradation property that describes degradation of one or more components of the optical device, an environmental property that describes an environment of the optical device, or a process property associated with a process in which the optical device is being used. The monitoring device may identify whether an operational property, of the set of operational properties, satisfies a condition, and may selectively perform a monitoring action based on whether the operational property satisfies the condition.Type: GrantFiled: September 2, 2021Date of Patent: January 9, 2024Assignee: Lumentum Operations LLCInventors: Xiang Peng, I-Ning Hu, Michael Mielke, Boris Kharlamov
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Publication number: 20210399513Abstract: A monitoring device may receive sensor information, associated with an optical device included in a high-power fiber laser, from a set of sensors associated with the optical device. The monitoring device may determine, based on the sensor information, a set of operational properties of the optical device. The set of operational properties may include: a health property that describes a health of one or more components of the optical device, a degradation property that describes degradation of one or more components of the optical device, an environmental property that describes an environment of the optical device, or a process property associated with a process in which the optical device is being used. The monitoring device may identify whether an operational property, of the set of operational properties, satisfies a condition, and may selectively perform a monitoring action based on whether the operational property satisfies the condition.Type: ApplicationFiled: September 2, 2021Publication date: December 23, 2021Inventors: Xiang PENG, I-Ning HU, Michael MIELKE, Boris KHARLAMOV
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Patent number: 11114809Abstract: A monitoring device may receive sensor information, associated with an optical device included in a high-power fiber laser, from a set of sensors associated with the optical device. The monitoring device may determine, based on the sensor information, a set of operational properties of the optical device. The set of operational properties may include: a health property that describes a health of one or more components of the optical device, a degradation property that describes degradation of one or more components of the optical device, an environmental property that describes an environment of the optical device, or a process property associated with a process in which the optical device is being used. The monitoring device may identify whether an operational property, of the set of operational properties, satisfies a condition, and may selectively perform a monitoring action based on whether the operational property satisfies the condition.Type: GrantFiled: January 29, 2019Date of Patent: September 7, 2021Assignee: Lumentum Operations LLCInventors: Xiang Peng, I-Ning Hu, Michael Mielke, Boris Kharlamov
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Publication number: 20210057864Abstract: A laser may comprise a ceramic core that at least partially defines a waveguide slab laser cavity. An interior surface of the waveguide slab laser cavity is coated with a layer of metal. The laser also includes a set of mirrors that form a resonator in the waveguide slab laser cavity. The laser also includes electrodes positioned such that the laser gas contained in the waveguide slab laser cavity is excited when an excitation signal is applied to the electrodes. In other embodiments, the core may be formed from a material other than ceramic. Additionally or alternatively, the layer may be formed from a material other than metal.Type: ApplicationFiled: August 6, 2020Publication date: February 25, 2021Inventors: Alan Kujawski, Wendelin Weingartner, Michael Mielke
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Publication number: 20190260175Abstract: A monitoring device may receive sensor information, associated with an optical device included in a high-power fiber laser, from a set of sensors associated with the optical device. The monitoring device may determine, based on the sensor information, a set of operational properties of the optical device. The set of operational properties may include: a health property that describes a health of one or more components of the optical device, a degradation property that describes degradation of one or more components of the optical device, an environmental property that describes an environment of the optical device, or a process property associated with a process in which the optical device is being used. The monitoring device may identify whether an operational property, of the set of operational properties, satisfies a condition, and may selectively perform a monitoring action based on whether the operational property satisfies the condition.Type: ApplicationFiled: January 29, 2019Publication date: August 22, 2019Inventors: Xiang Peng, I-Ning Hu, Michael Mielke, Boris Kharlamov
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Patent number: 10239160Abstract: Systems and methods for material singulation. According to some embodiments, methods for material singulation may include applying a first laser output to the material, the first laser output causing a modification of a material property of the material when exposed to the first laser output; and applying a second laser output to the material that was exposed to the first laser output to cause singulation of the material in such a way that surfaces created by the singulation of the material are substantially free from defects.Type: GrantFiled: September 21, 2011Date of Patent: March 26, 2019Assignee: Coherent, Inc.Inventors: Michael Mielke, Ramanujapuram A. Srinivas, Tim Booth, Thor Wilbanks
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Publication number: 20180161918Abstract: Methods of and devices for forming edge chamfers and through holes and slots on a material that is machined using a laser, such as an ultrafast laser. The shaped material has predetermined and highly controllable geometric shape and/or surface morphology. Further, a method of and a device for preventing re-deposition of the particles on a material that is machined using a laser, such as an ultrafast laser. A fluid is used to wash off the particles generated during the laser machining process. The fluid can be in a non-neutral condition, with one or more chemical salts added, or a condition allowing the coagulation of the particles in the fluid, such that the particles can be precipitated to avoid the reattachment to the machined substrate.Type: ApplicationFiled: February 6, 2018Publication date: June 14, 2018Inventors: Ramanujapuram A. SRINIVAS, David M. GAUDIOSI, Timothy BOOTH, Michael SHIRK, Eric JUBAN, Michael MIELKE
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Patent number: 9919380Abstract: Methods of and devices for forming edge chamfers and through holes and slots on a material that is machined using a laser, such as an ultrafast laser. The shaped material has predetermined and highly controllable geometric shape and/or surface morphology. Further, a method of and a device for preventing re-deposition of the particles on a material that is machined using a laser, such as an ultrafast laser. A fluid is used to wash off the particles generated during the laser machining process. The fluid can be in a non-neutral condition, with one or more chemical salts added, or a condition allowing the coagulation of the particles in the fluid, such that the particles can be precipitated to avoid the reattachment to the machined substrate.Type: GrantFiled: February 21, 2014Date of Patent: March 20, 2018Assignee: Coherent, Inc.Inventors: Ramanujapuram A. Srinivas, David M. Gaudiosi, Timothy Booth, Michael Shirk, Eric Juban, Michael Mielke
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Patent number: 9281653Abstract: Systems and methods are disclosed for shutting down a laser system in an intelligent and flexible manner. An intelligent laser interlock system includes both hardwired components, and intelligent components configured to execute computing instructions. The hardwired components and the intelligent components are configured to shutdown the laser system to one or more alternative shutdown states in response to one or more interlock signals.Type: GrantFiled: July 19, 2012Date of Patent: March 8, 2016Assignee: Coherent, Inc.Inventors: Andrew D. Stadler, David Goldman, Mark Farley, Michael Mielke
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Patent number: 9120181Abstract: Systems and methods for processing, selectively ablating, and singulating layered materials. According to some embodiments, methods for selectively ablating a layered material may include selectively varying a wavelength of at least a portion of a primary ultrafast laser beam to create a secondary ultrafast laser beam with a second wavelength, the primary ultrafast laser beam being configured to ablate a layer of the layered material, the secondary ultrafast laser beam being configured to ablate an additional layer of the layered material and applying the first and second ultrafast laser beams to the layered material to create a singulated product.Type: GrantFiled: September 16, 2011Date of Patent: September 1, 2015Assignee: COHERENT, INC.Inventors: Ramanujapuram A. Srinivas, Michael Greenberg, David Gaudiosi, Michael Mielke, Tim Booth
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Patent number: 9114482Abstract: Systems and methods for laser based processing of layered materials. Methods may include selectively adjusting ultrafast laser output of an ultrafast laser device based upon one or more physical attributes of a layer of the layered material, applying the ultrafast laser output of the ultrafast laser device to the layer of the layered material along a tool path to ablate the layer along the tool path, and then re-executing the steps to ablate one or more additional layers, the re-execution occurring for each distinct layer of the layered material that is to be ablated.Type: GrantFiled: September 16, 2011Date of Patent: August 25, 2015Assignee: Raydiance, Inc.Inventors: Ramanujapuram A. Srinivas, Michael Greenberg, David Gaudiosi, Michael Mielke, Tim Booth
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Patent number: 8884184Abstract: An apparatus for athermal ablation of a workpiece. The apparatus may include a laser device to direct a laser beam at the workpiece to remove a plurality of sections from the workpiece by athermal ablation. The removal may occur in a plurality of discrete motions that cause the laser beam to trace along outer perimeters of the sections in a specific order maintaining mechanical stability of the plurality of sections. The apparatus may further include a process gas nozzle to deliver process gas coaxially with the laser beam to clear debris and cool the workpiece, and a workpiece holder to hold and maneuver the workpiece during the removal of the plurality of sections.Type: GrantFiled: August 11, 2011Date of Patent: November 11, 2014Assignee: Raydiance, Inc.Inventors: David Gaudiosi, Michael Greenberg, Michael Mielke, Tim Booth, Gordon Masor
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Publication number: 20140239552Abstract: Methods of and devices for forming edge chamfers and through holes and slots on a material that is machined using a laser, such as an ultrafast laser. The shaped material has predetermined and highly controllable geometric shape and/or surface morphology. Further, a method of and a device for preventing re-deposition of the particles on a material that is machined using a laser, such as an ultrafast laser. A fluid is used to wash off the particles generated during the laser machining process. The fluid can be in a non-neutral condition, with one or more chemical salts added, or a condition allowing the coagulation of the particles in the fluid, such that the particles can be precipitated to avoid the reattachment to the machined substrate.Type: ApplicationFiled: February 21, 2014Publication date: August 28, 2014Applicant: Raydiance, Inc.Inventors: Ramanujapuram A. Srinivas, David M. Gaudiosi, Timothy Booth, Michael Shirk, Eric Juban, Michael Mielke
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Publication number: 20140027951Abstract: The method of and device for cutting brittle materials with tailored edge shape and roughness are disclosed. The methods can include directing one or more tools to a portion of brittle material causing separation of the material into two or more portions, where the as-cut edge has a predetermined and controllable geometric shape and/or surface morphology. The one or more tools can comprise energy (e.g., a femtosecond laser beam or acoustic beam) delivered to the material without making a physical contact.Type: ApplicationFiled: July 30, 2013Publication date: January 30, 2014Applicant: Raydiance, Inc.Inventors: Ramanujapuram A. Srinivas, David M. Gaudiosi, Michael R. Greenberg, Jeffrey Albelo, Tim Booth, Michael Shirk, Michael Mielke
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Patent number: 8554037Abstract: A hybrid waveguide device includes a hollow core fiber having a core formed by a combination of solid material and gases. The hybrid nature of the core allows the hybrid device to transport a high energy high power laser beam having an ultra-short pulse width without damage to the hybrid device due to a higher tolerance of irradiance than single-matter cores. A waveguide device having a core with gases in addition to solid matter is characterized by a lower nonlinear refractive index coefficient (n2), lower numerical aperture, larger delivering laser beam size, and higher ionization potential of the gases. As a result, the hybrid waveguide fiber can transport ultra-short laser pulses having ablative energy levels and power levels, for example from a laser generating subassembly to a laser material-modification subassembly.Type: GrantFiled: September 30, 2010Date of Patent: October 8, 2013Assignee: Raydiance, Inc.Inventors: Xiang Peng, Michael Mielke, Timothy Booth
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Publication number: 20130068736Abstract: Systems and methods for material singulation. According to some embodiments, methods for material singulation may include applying a first laser output to the material, the first laser output causing a modification of a material property of the material when exposed to the first laser output; and applying a second laser output to the material that was exposed to the first laser output to cause singulation of the material in such a way that surfaces created by the singulation of the material are substantially free from defects.Type: ApplicationFiled: September 21, 2011Publication date: March 21, 2013Inventors: Michael Mielke, Ramanujapuram A. Srinivas, Tim Booth, Thor Wilbanks
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Publication number: 20120280578Abstract: Systems and methods are disclosed for shutting down a laser system in an intelligent and flexible manner. An intelligent laser interlock system includes both hardwired components, and intelligent components configured to execute computing instructions. The hardwired components and the intelligent components are configured to shutdown the laser system to one or more alternative shutdown states in response to one or more interlock signals.Type: ApplicationFiled: July 19, 2012Publication date: November 8, 2012Inventors: Andrew D. Stadler, David Goldman, Mark Farley, Michael Mielke
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Patent number: 8232687Abstract: The present invention comprises, in various embodiments, systems and methods for shutting down a laser system in an intelligent and flexible manner. An intelligent laser interlock system includes both hardwired components, and intelligent components configured to execute computing instructions. The hardwired components and the intelligent components are configured to shutdown the laser system to one or more alternative shutdown states in response to one or more interlock signals.Type: GrantFiled: April 26, 2007Date of Patent: July 31, 2012Assignee: Raydiance, Inc.Inventors: Andrew D. Stadler, David Goldman, Mark Farley, Michael Mielke