Patents by Inventor James E. BEAVERS, Jr.
James E. BEAVERS, Jr. 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: 11811453Abstract: An apparatus for producing large glass preforms with minimal clad to-core waveguide distortion from a glass body having a weight, an outer surface, core rods, and a cladding surrounding and separated from the core rods by a gap. The apparatus includes collars affixed to the top and bottom of the cladding; a spacer upon which the core rods rest; a first unit holding and supporting both the bottom collar and the spacer; a second unit holding and supporting the top collar; and a frame defining a heating zone having a heating element to heat the glass body. The weight of the glass body above and below the molten glass in the heating zone is supported by the first and second units without contacting the outer surface of the glass body.Type: GrantFiled: May 25, 2022Date of Patent: November 7, 2023Assignee: HERAEUS QUARTZ NORTH AMERICA LLCInventors: Qiulin Ma, Kai Huei Chang, Evan P. Green, James E. Beavers, Jr., Carl W. Ponader
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Patent number: 11454580Abstract: Methods for preform and tube draw based on controlling forming zone viscosity determined by calculating a holding force exerted by the glass component in the forming zone on the strand being drawn below. The holding force may be calculated by determining a gravitational force applied to the strand and a pulling force applied to the strand by a pulling device, where the holding force is equal to the opposite of the algebraic sum of the gravitational and pulling forces. The holding force may also be calculated by measuring a stress-induced birefringence in the strand at a point between the forming zone and the pulling device, determining an amount of force applied to the strand at the point corresponding to the birefringence, and calculating the holding force by correcting the amount of force for a gravitational effect of the weight of the strand between the forming zone and the point.Type: GrantFiled: October 14, 2014Date of Patent: September 27, 2022Assignee: Heraeus Quartz North America LLCInventors: Georges Levon Fattal, James E. Beavers, Jr., Kai Huei Chang, Evan P. Green, Qiulin Ma
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Publication number: 20220286204Abstract: An apparatus for producing large glass preforms with minimal clad to-core waveguide distortion from a glass body having a weight, an outer surface, core rods, and a cladding surrounding and separated from the core rods by a gap. The apparatus includes collars affixed to the top and bottom of the cladding; a spacer upon which the core rods rest; a first unit holding and supporting both the bottom collar and the spacer; a second unit holding and supporting the top collar; and a frame defining a heating zone having a heating element to heat the glass body. The weight of the glass body above and below the molten glass in the heating zone is supported by the first and second units without contacting the outer surface of the glass body.Type: ApplicationFiled: May 25, 2022Publication date: September 8, 2022Inventors: Qiulin Ma, Kai Huei Chang, Evan P. Green, James E. Beavers, JR., Carl W. Ponader
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Patent number: 11405107Abstract: An apparatus and related process for producing large glass preforms with minimal clad to-core waveguide distortion from a glass body having a weight, an outer surface, core rods, and a cladding surrounding and separated from the core rods by a gap. The apparatus includes collars affixed to the top and bottom of the cladding; a spacer upon which the core rods rest; a first unit holding and supporting both the bottom collar and the spacer; a second unit holding and supporting the top collar; and a frame defining a heating zone having a heating element to heat the glass body. The weight of the glass body above and below the molten glass in the heating zone is supported by the first and second units without contacting the outer surface of the glass body.Type: GrantFiled: November 15, 2017Date of Patent: August 2, 2022Assignee: HERAEUS QUARTZ NORTH AMERICA LLCInventors: Qiulin Ma, Kai Huei Chang, Evan P. Green, James E. Beavers, Jr., Carl W. Ponader
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Patent number: 10590022Abstract: Apparatus and method for producing elongated glass components with low bow. The apparatus may include a heating element to heat a bulk glass component where a strand may be drawn from the bulk glass component in a downward direction and a gripper device including a clamping element to support the strand while pulling or drawing it from the bulk glass component in a linear motion, and a low-friction mounting element attached to the clamping element which allows translational movement of the clamping element in an x-y plane. The gripper device may further be used to reduce bow in the strand while it is being drawn by moving the clamping element on the mounting element in a direction opposite the direction of any measured transverse acceleration.Type: GrantFiled: January 22, 2015Date of Patent: March 17, 2020Assignees: HERAEUS QUARTZ NORTH AMERICA LLC, HERAEUS QUARZGLAS GMBH & CO. KGInventors: Georges Levon Fattal, James E. Beavers, Jr., Oliver Ganz, Kai Huei Chang
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Patent number: 10388028Abstract: An apparatus and a method for measurement of transparent cylindrical articles during their manufacture in high temperature furnaces having openings for viewing the articles as they pass through the furnace. The cylindrical articles may, for example, be optical fiber preforms which have at least two layers of vitreous material and from which optical fibers are made. Measurement is accomplished using a digital camera with a sensing and digital recording device and a lens, and a processor programmed with an algorithm which analyzes the images recorded by the sensing and digital recording device by eliminating noise, identifying and locating the outer edges of the transparent cylindrical article and calculating measurements of the article including the diameter and the axial center of the article.Type: GrantFiled: June 17, 2014Date of Patent: August 20, 2019Assignee: HERAEUS QUARTZ NORTH AMERICA LLCInventors: Qiulin Ma, Evan P. Green, James E. Beavers, Jr.
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Publication number: 20180145752Abstract: An apparatus and related process for producing large glass preforms with minimal clad to-core waveguide distortion from a glass body having a weight, an outer surface, core rods, and a cladding surrounding and separated from the core rods by a gap. The apparatus includes collars affixed to the top and bottom of the cladding; a spacer upon which the core rods rest; a first unit holding and supporting both the bottom collar and the spacer; a second unit holding and supporting the top collar; and a frame defining a heating zone having a heating element to heat the glass body. The weight of the glass body above and below the molten glass in the heating zone is supported by the first and second units without contacting the outer surface of the glass body.Type: ApplicationFiled: November 15, 2017Publication date: May 24, 2018Inventors: Qiulin MA, Kai Huei CHANG, Evan P. GREEN, James E. BEAVERS, JR., Carl PONADER
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Publication number: 20180002215Abstract: Apparatus and method for producing elongated glass components with low bow. The apparatus may include a heating element to heat a bulk glass component where a strand may be drawn from the bulk glass component in a downward direction and a gripper device including a clamping element to support the strand while pulling or drawing it from the bulk glass component in a linear motion, and a low-friction mounting element attached to the clamping element which allows translational movement of the clamping element in an x-y plane. The gripper device may further be used to reduce bow in the strand while it is being drawn by moving the clamping element on the mounting element in a direction opposite the direction of any measured transverse acceleration.Type: ApplicationFiled: January 22, 2015Publication date: January 4, 2018Inventors: Georges Levon FATTAL, James E. BEAVERS, Jr., Oliver GANZ, Kai Huei CHANG
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Publication number: 20170254733Abstract: Methods for preform and tube draw based on controlling forming zone viscosity determined by calculating a holding force exerted by the glass component in the forming zone on the strand being drawn below. The holding force may be calculated by determining a gravitational force applied to the strand and a pulling force applied to the strand by a pulling device, where the holding force is equal to the opposite of the algebraic sum of the gravitational and pulling forces. The holding force may also be calculated by measuring a stress-induced birefringence in the strand at a point between the forming zone and the pulling device, determining an amount of force applied to the strand at the point corresponding to the birefringence, and calculating the holding force by correcting the amount of force for a gravitational effect of the weight of the strand between the forming zone and the point.Type: ApplicationFiled: October 14, 2014Publication date: September 7, 2017Inventors: Georges Levon FATTAL, James E. BEAVERS, Jr., Kai Huei CHANG, Evan P. GREEN, Qiulin MA
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Publication number: 20170084050Abstract: An apparatus and a method for measurement of transparent cylindrical articles during their manufacture in high temperature furnaces having openings for viewing the articles as they pass through the furnace. The cylindrical articles may, for example, be optical fiber preforms which have at least two layers of vitreous material and from which optical fibers are made. Measurement is accomplished using a digital camera with a sensing and digital recording device and a lens, and a processor programmed with an algorithm which analyzes the images recorded by the sensing and digital recording device by eliminating noise, identifying and locating the outer edges of the transparent cylindrical article and calculating measurements of the article including the diameter and the axial center of the article.Type: ApplicationFiled: June 17, 2014Publication date: March 23, 2017Inventors: Qiulin MA, Evan P. GREEN, James E. BEAVERS, Jr.