Patents by Inventor Eric R. Mueller
Eric R. Mueller 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: 11336070Abstract: A carbon dioxide gas-discharge slab-laser is assembled in a laser-housing. The laser-housing is formed from a hollow extrusion. An interior surface of the extrusion provides a ground electrode of the laser. Another live electrode is located within the extrusion, electrically insulated from and parallel to the ground electrode, forming a discharge-gap of the slab-laser. The electrodes are spaced apart by parallel ceramic strips. Neither the extrusion, nor the live electrode, include fluid coolant channels. The laser-housing is cooled by fluid-cooled plates attached to the outside thereof.Type: GrantFiled: April 2, 2020Date of Patent: May 17, 2022Assignee: Coherent, Inc.Inventors: Eric R. Mueller, Vernon A. Seguin, Christian Shackleton
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Patent number: 10946467Abstract: A system for a welding apparatus including a welding cup; a hollow tubular adapter body extending longitudinally from a first end to a second end, an external surface of the adapter body defining one or more grooves extending about a circumference thereof and longitudinally disposed between the first and second end; and one or more O-rings configured to be installed about the adapter body and received in each of the one or more grooves; wherein the first end or the second end of the adapter body is engageable with a welding torch head and wherein the welding cup is configured to receive the other of the first end and the second end of the adapter body therein, the welding cup extending longitudinally along the adapter body such that the one or more O-rings is disposed between the adapter body and the welding cup.Type: GrantFiled: February 19, 2018Date of Patent: March 16, 2021Inventor: Eric R. Mueller
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Publication number: 20200235542Abstract: A carbon dioxide gas-discharge slab-laser is assembled in a laser-housing. The laser-housing is formed from a hollow extrusion. An interior surface of the extrusion provides a ground electrode of the laser. Another live electrode is located within the extrusion, electrically insulated from and parallel to the ground electrode, forming a discharge-gap of the slab-laser. The electrodes are spaced apart by parallel ceramic strips. Neither the extrusion, nor the live electrode, include fluid coolant channels. The laser-housing is cooled by fluid-cooled plates attached to the outside thereof.Type: ApplicationFiled: April 2, 2020Publication date: July 23, 2020Applicant: Coherent, Inc.Inventors: Eric R. MUELLER, Vernon A. SEGUIN, Christian SHACKLETON
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Patent number: 10644474Abstract: A carbon dioxide gas-discharge slab-laser is assembled in a laser-housing. The laser-housing is formed from a hollow extrusion. An interior surface of the extrusion provides a ground electrode of the laser. Another live electrode is located within the extrusion, electrically insulated from and parallel to the ground electrode, forming a discharge-gap of the slab-laser. The electrodes are spaced apart by parallel ceramic strips. Neither the extrusion, nor the live electrode, include any direct fluid-cooling means. The laser-housing is cooled by fluid-cooled plates attached to the outside thereof.Type: GrantFiled: March 7, 2018Date of Patent: May 5, 2020Assignee: Coherent, Inc.Inventors: Eric R. Mueller, Vernon A. Seguin, Christian Shackleton
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Publication number: 20190280448Abstract: A carbon dioxide gas-discharge slab-laser is assembled in a laser-housing. The laser-housing is formed from a hollow extrusion. An interior surface of the extrusion provides a ground electrode of the laser. Another live electrode is located within the extrusion, electrically insulated from and parallel to the ground electrode, forming a discharge-gap of the slab-laser. The electrodes are spaced apart by parallel ceramic strips. Neither the extrusion, nor the live electrode, include any direct fluid-cooling means. The laser-housing is cooled by fluid-cooled plates attached to the outside thereof.Type: ApplicationFiled: March 7, 2018Publication date: September 12, 2019Inventors: Eric R. MUELLER, Vernon A. SEGUIN, Christian SHACKLETON
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Patent number: 10274806Abstract: Laser-drilling apparatus includes a gas-discharge for laser emitting laser-radiation pulses, and two acousto-optic modulators (AOMs). The laser radiation pulses are characterized as having two temporal central portions between temporal leading and trailing edge portions. The AOMs are arranged to spatially separate the central temporal portions of the pulses from each other and from the leading and trailing edge portions of the pulses.Type: GrantFiled: October 31, 2016Date of Patent: April 30, 2019Assignee: Coherent, Inc.Inventors: Gongxue Hua, Eric R. Mueller, Lanny Laughman
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Publication number: 20180272455Abstract: A system for a welding apparatus including a welding cup; a hollow tubular adapter body extending longitudinally from a first end to a second end, an external surface of the adapter body defining one or more grooves extending about a circumference thereof and longitudinally disposed between the first and second end; and one or more O-rings configured to be installed about the adapter body and received in each of the one or more grooves; wherein the first end or the second end of the adapter body is engageable with a welding torch head and wherein the welding cup is configured to receive the other of the first end and the second end of the adapter body therein, the welding cup extending longitudinally along the adapter body such that the one or more O-rings is disposed between the adapter body and the welding cup.Type: ApplicationFiled: February 19, 2018Publication date: September 27, 2018Applicant: M5 Scientific Glass Blowing, Inc.Inventor: Eric R. Mueller
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Patent number: 9925620Abstract: Laser-machining apparatus includes a carbon monoxide (CO) laser emitting a beam of laser-radiation having forty-four different wavelength components and optical elements for delivering the radiation to workpiece. An acousto-optic modulator is provided for modulating the beam on the workpiece. A birefringent plate is provided in the beam transported to the workpiece for randomly polarizing radiation incident on the workpiece. A minimum distance of the workpiece from the laser, and the number of different-wavelength components in the laser beam provides that no optical isolator is required for preventing feedback of radiation into the laser.Type: GrantFiled: August 19, 2015Date of Patent: March 27, 2018Assignee: Coherent, Inc.Inventors: Eric R. Mueller, Michael Alexander Bellos
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Publication number: 20170131617Abstract: Laser-drilling apparatus includes a gas-discharge for laser emitting laser-radiation pulses, and two acousto-optic modulators (AOMs). The laser radiation pulses are characterized as having two temporal central portions between temporal leading and trailing edge portions. The AOMs are arranged to spatially separate the central temporal portions of the pulses from each other and from the leading and trailing edge portions of the pulses.Type: ApplicationFiled: October 31, 2016Publication date: May 11, 2017Inventors: Gongxue HUA, Eric R. MUELLER, Lanny LAUGHMAN
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Patent number: 9614342Abstract: A carbon dioxide waveguide-laser includes an elongated resonator unit and an elongated power-supply unit. The resonator and power-supply units are spaced by a cooling unit including a plurality of longitudinally extending, spaced-apart fins, with fans arranged to drive air through the spaces between the fins.Type: GrantFiled: April 16, 2015Date of Patent: April 4, 2017Assignee: Coherent, Inc.Inventors: Eric R. Mueller, Adrian Papanide
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Publication number: 20170050266Abstract: Laser-machining apparatus includes a carbon monoxide (CO) laser emitting a beam of laser-radiation having forty-four different wavelength components and optical elements for delivering the radiation to workpiece. An acousto-optic modulator is provided for modulating the beam on the workpiece. A birefringent plate is provided in the beam transported to the workpiece for randomly polarizing radiation incident on the workpiece. A minimum distance of the workpiece from the laser, and the number of different-wavelength components in the laser beam provides that no optical isolator is required for preventing feedback of radiation into the laser.Type: ApplicationFiled: August 19, 2015Publication date: February 23, 2017Inventors: Eric R. MUELLER, Michael Alexander BELLOS
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Publication number: 20160308325Abstract: A carbon dioxide waveguide-laser includes an elongated resonator unit and an elongated power-supply unit. The resonator and power-supply units are spaced by a cooling unit including a plurality of longitudinally extending, spaced-apart fins, with fans arranged to drive air through the spaces between the fins.Type: ApplicationFiled: April 16, 2015Publication date: October 20, 2016Inventors: Eric R. MUELLER, Adrian PAPANIDE
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Patent number: 9419404Abstract: A carbon dioxide waveguide-laser includes an elongated resonator compartment and an elongated power supply compartment. The resonator and power-supply compartments are separated by a water-cooled heat sink.Type: GrantFiled: April 22, 2015Date of Patent: August 16, 2016Assignee: Coherent, Inc.Inventor: Eric R. Mueller
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Patent number: 9414498Abstract: Apparatus for drilling a via-hole in a printed circuit board (PCB) includes a carbon monoxide laser deliver laser radiation pulses. The pulses have a relatively broad wavelength-range, and slow rising and falling edges. The rising and falling edges of the pulses are clipped using and acousto-optic modulator. A dispersion-compensator compensates for dispersion in the clipped pulses introduced by the AOM. Achromatic focusing optics focus the dispersion-compensated, clipped pulses on the PCB for the via-hole drilling.Type: GrantFiled: September 20, 2013Date of Patent: August 9, 2016Assignee: Coherent, Inc.Inventors: Gongxue Hua, Eric R. Mueller
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Publication number: 20150083698Abstract: Apparatus for drilling a via-hole in a printed circuit board (PCB) includes a carbon monoxide laser deliver laser radiation pulses. The pulses have a relatively broad wavelength-range, and slow rising and falling edges. The rising and falling edges of the pulses are clipped using and acousto-optic modulator. A dispersion-compensator compensates for dispersion in the clipped pulses introduced by the AOM. Achromatic focusing optics focus the dispersion-compensated, clipped pulses on the PCB for the via-hole drilling.Type: ApplicationFiled: September 20, 2013Publication date: March 26, 2015Applicant: COHERENT, INC.Inventors: Gongxue HUA, Eric R. MUELLER
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Patent number: 8129684Abstract: A THz-frequency heterodyne imaging method is used to remotely detect objects concealed in or under a person's clothing. One THz-frequency beam is scanned over a person being examined. A portion of the beam penetrates the persons clothing and is reflected by an object concealed under the person's clothing. The reflected portion the beam is mixed with another beam of THz-frequency radiation having a different frequency to provide a signal having an intermediate frequency (IF) including image data representative of the concealed object.Type: GrantFiled: March 22, 2005Date of Patent: March 6, 2012Assignee: Coherent, Inc.Inventor: Eric R. Mueller
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Patent number: 7756186Abstract: Through the use of a relatively inexpensive third mirror on a novel folded hybrid unstable resonator configuration, the optimum output coupling for a given laser design can be explored quickly and easily with a minimum of intracavity mirror alignment. No changes in either the radii of curvature of the three cavity optics or their spacing are required for this exploration. In addition to providing techniques for purposefully and systematically introducing mirror edge effects or avoiding edges effects altogether, the invention provides that output beams of different width can be advantageously explored in a relatively simple and straightforward manner. The invention provides that higher geometric magnification cavity designs may be made compatible with low diffraction output coupling in a configuration that uses only three totally reflecting optics.Type: GrantFiled: February 19, 2008Date of Patent: July 13, 2010Assignee: Coherent, Inc.Inventors: Peter P. Chenausky, Lanny Laughman, Eric R. Mueller, Leon A. Newman, Vernon A. Seguin, Christian J. Shackleton
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Patent number: 7687773Abstract: The present invention relates to sub-millimeter wave frequency heterodyne imaging systems. More specifically, the present invention relates to a sub-millimeter wave frequency heterodyne detector system for imaging the magnitude and phase of transmitted power through or reflected power off of mechanically scanned samples at sub-millimeter wave frequencies.Type: GrantFiled: June 20, 2008Date of Patent: March 30, 2010Assignees: California Institute of Technology, Coherent, Inc.Inventors: Peter H. Siegel, Robert Dengler, Eric R. Mueller
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Patent number: 7675673Abstract: An output beam from a laser is directed into an acousto-optic cell. The laser beam includes repeated sequences of two or more pulses. The acousto-optic cell is sequentially driven by RF voltages at two or more frequencies. A portion of the laser output beam is diffracted by the acousto-optic cell at two or more different angles to the laser output beam. This provides two or more secondary beams. One of the secondary beams includes only the first pulses of the sequences; the other includes only the second pulses of the sequences. The duration of the pulses in the laser beam is controlled to control time-averaged power in the secondary beams.Type: GrantFiled: March 26, 2008Date of Patent: March 9, 2010Assignee: Coherent, Inc.Inventor: Eric R. Mueller
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Publication number: 20090244691Abstract: An output beam from a laser is directed into an acousto-optic cell. The laser beam includes repeated sequences of two or more pulses. The acousto-optic cell is sequentially driven by RF voltages at two or more frequencies. A portion of the laser output beam is diffracted by the acousto-optic cell at two or more different angles to the laser output beam. This provides two or more secondary beams. One of the secondary beams includes only the first pulses of the sequences; the other includes only the second pulses of the sequences. The duration of the pulses in the laser beam is controlled to control time-averaged power in the secondary beams.Type: ApplicationFiled: March 26, 2008Publication date: October 1, 2009Inventor: Eric R. Mueller