Patents by Inventor Douglas Hull Jennings
Douglas Hull Jennings 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: 11964895Abstract: A method of forming a glass sheet comprises: (a) forming a ribbon of glass from molten glass with a pair of forming rollers; (b) reducing horizontal temperature variability of the ribbon of glass to be 10° C. or less across 80 percent of an entire width of the ribbon of glass before the ribbon of glass cools to a glass transition temperature; (c) controlling a cooling rate of the ribbon of glass while the ribbon of glass moves vertically downward within a setting zone such that the ribbon of glass has a first average cooling rate before the ribbon of glass cools to the glass transition temperature and a second average cooling rate after the ribbon of glass cools to the glass transition temperature, the first average cooling rate being less than the second average cooling rate; and (d) separating a glass sheet from the ribbon of glass.Type: GrantFiled: March 9, 2023Date of Patent: April 23, 2024Assignee: Corning IncorporatedInventors: Douglas Dale Bressler, David Alan Deneka, Michael Charles Gerrish, Douglas Hull Jennings, Miki Eugene Kunitake, William Edward Lock, Shyam Prasad Mudiraj, Neil Eugene Partridge, Jeremy Nathan Payne, Eugene Roland Proulx, II, Ryan Christopher Sutton, Steven Howard Tarcza
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Publication number: 20240034667Abstract: A method of forming an optical element is provided. The method includes producing silica-based soot particles using chemical vapor deposition, the silica-based soot particles having an average particle size of between about 0.05 ?m and about 0.25 ?m. The method also includes forming a soot compact from the silica-based soot particles and doping the soot compact with a halogen in a closed system by contacting the silica-based soot compact with a halogen-containing gas in the closed system at a temperature of less than about 1200° C.Type: ApplicationFiled: October 6, 2023Publication date: February 1, 2024Inventors: Steven Bruce Dawes, Douglas Hull Jennings, Pushkar Tandon
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Publication number: 20230212052Abstract: A method of forming a glass sheet comprises: (a) forming a ribbon of glass from molten glass with a pair of forming rollers; (b) reducing horizontal temperature variability of the ribbon of glass to be 10° C. or less across 80 percent of an entire width of the ribbon of glass before the ribbon of glass cools to a glass transition temperature; (c) controlling a cooling rate of the ribbon of glass while the ribbon of glass moves vertically downward within a setting zone such that the ribbon of glass has a first average cooling rate before the ribbon of glass cools to the glass transition temperature and a second average cooling rate after the ribbon of glass cools to the glass transition temperature, the first average cooling rate being less than the second average cooling rate; and (d) separating a glass sheet from the ribbon of glass.Type: ApplicationFiled: March 9, 2023Publication date: July 6, 2023Inventors: Douglas Dale Bressler, David Alan Deneka, Michael Charles Gerrish, Douglas Hull Jennings, Miki Eugene Kunitake, William Edward Lock, Shyam Prasad Mudiraj, Neil Eugene Partridge, Jeremy Nathan Payne, Eugene Roland Proulx, II, Ryan Christopher Sutton, Steven Howard Tarcza
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Patent number: 11629087Abstract: A method of forming a glass sheet comprises: (a) forming a ribbon of glass from molten glass with a pair of forming rollers; (b) reducing horizontal temperature variability of the ribbon of glass to be 10° C. or less across 80 percent of an entire width of the ribbon of glass before the ribbon of glass cools to a glass transition temperature; (c) controlling a cooling rate of the ribbon of glass while the ribbon of glass moves vertically downward within a setting zone such that the ribbon of glass has a first average cooling rate before the ribbon of glass cools to the glass transition temperature and a second average cooling rate after the ribbon of glass cools to the glass transition temperature, the first average cooling rate being less than the second average cooling rate; and (d) separating a glass sheet from the ribbon of glass.Type: GrantFiled: November 8, 2021Date of Patent: April 18, 2023Assignee: Corning IncorporatedInventors: Douglas Dale Bressler, David Alan Deneka, Michael Charles Gerrish, Douglas Hull Jennings, Miki Eugene Kunitake, William Edward Lock, Shyam Prasad Mudiraj, Neil Eugene Partridge, Jeremy Nathan Payne, Eugene Roland Proulx, II, Ryan Christopher Sutton, Steven Howard Tarcza
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Publication number: 20220153623Abstract: A method of forming a glass sheet comprises: (a) forming a ribbon of glass from molten glass with a pair of forming rollers; (b) reducing horizontal temperature variability of the ribbon of glass to be 10° C. or less across 80 percent of an entire width of the ribbon of glass before the ribbon of glass cools to a glass transition temperature; (c) controlling a cooling rate of the ribbon of glass while the ribbon of glass moves vertically downward within a setting zone such that the ribbon of glass has a first average cooling rate before the ribbon of glass cools to the glass transition temperature and a second average cooling rate after the ribbon of glass cools to the glass transition temperature, the first average cooling rate being less than the second average cooling rate; and (d) separating a glass sheet from the ribbon of glass.Type: ApplicationFiled: November 8, 2021Publication date: May 19, 2022Inventors: Douglas Dale Bressler, David Alan Deneka, Michael Charles Gerrish, Douglas Hull Jennings, Miki Eugene Kunitake, William Edward Lock, Shyam Prasad Mudiraj, Neil Eugene Partridge, Jeremy Nathan Payne, Eugene Roland Proulx, II, Ryan Christopher Sutton, Steven Howard Tarcza
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Patent number: 11103825Abstract: A method of capturing soot includes the steps: combusting a first precursor in a burner to produce a soot stream, the soot stream comprising soot and exiting the burner at an outlet; and directing a capture medium to the soot stream, the capture medium contacting the soot in an impact region, the soot having a temperature greater than 50° C. in the impact region.Type: GrantFiled: July 29, 2019Date of Patent: August 31, 2021Assignee: Corning IncorporatedInventors: Curtis Robert Fekety, Thomas Richard Chapman, Douglas Hull Jennings, Nicolas LeBlond, He Jing, Christopher Scott Thomas
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Publication number: 20200038796Abstract: A method of capturing soot includes the steps: combusting a first precursor in a burner to produce a soot stream, the soot stream comprising soot and exiting the burner at an outlet; and directing a capture medium to the soot stream, the capture medium contacting the soot in an impact region, the soot having a temperature greater than 50° C. in the impact region.Type: ApplicationFiled: July 29, 2019Publication date: February 6, 2020Inventors: Curtis Robert Fekety, Thomas Richard Chapman, Douglas Hull Jennings, Nicolas LeBlond, He Jing, Christopher Scott Thomas
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Publication number: 20190256399Abstract: A process for manufacturing glass articles from powder at low temperatures includes the steps of preparing a slurry of powder suspended in a liquid; depositing the slurry on a substrate; drying the slurry to form a layer on the substrate; depositing slurry on the layer; drying the slurry deposited on the layer on the substrate to form another layer; repeating the steps of depositing a slurry and drying the to form a plurality of sequential layers on the substrate; and consolidating the plurality of sequential layers to form a glass article. The process requires a small manufacturing footprint, and facilitates the manufacture of very large near-net shape glass articles.Type: ApplicationFiled: February 18, 2019Publication date: August 22, 2019Inventors: Sezhian Annamalai, Thomas Richard Chapman, Kenneth Edward Hrdina, Douglas Hull Jennings, Nicolas LeBlond, Dale Robert Powers
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Publication number: 20170362115Abstract: A method of forming an optical element is provided. The method includes producing silica-based soot particles using chemical vapor deposition, the silica-based soot particles having an average particle size of between about 0.05 ?m and about 0.25 ?m. The method also includes forming a soot compact from the silica-based soot particles and doping the soot compact with a halogen in a closed system by contacting the silica-based soot compact with a halogencontaining gas in the closed system at a temperature of less than about 1200° C.Type: ApplicationFiled: November 24, 2015Publication date: December 21, 2017Inventors: Steven Bruce Dawes, Douglas Hull Jennings, Pushkar Tandon
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Patent number: 9108876Abstract: Manufacturing an optical fiber by using an outside vapor deposition technique for making a substrate, applying one or more layers to the substrate using a radial pressing technique to form a soot blank, sintering the soot blank in the presence of a gaseous refractive index-modifying dopant, and drawing the sintered soot blank, provides a more efficient and cost effective process for generating complex refractive index profiles.Type: GrantFiled: November 27, 2012Date of Patent: August 18, 2015Assignee: Corning IncorporatedInventors: Steven Bruce Dawes, Dominick Fiordimalva, Timothy Leonard Hunt, Douglas Hull Jennings
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Patent number: 8974897Abstract: The disclosure relates to methods of forming a vessel and to the resulting vessel. The vessel may be formed by providing a first fumed silica soot layer comprised of primary particles of fumed silica soot, and then providing over the first fumed silica soot layer a second fumed silica soot layer comprised of agglomerated particles formed into an agglomerated form from primary particles of fumed silica soot. The primary particles of the first fumed silica soot layer may have a substantially uniform density distribution, and the agglomerated particles of the second fumed silica soot layer may have a substantially non-uniform density distribution. The methods may include consolidating the first and second soot layers together to form a consolidated body.Type: GrantFiled: March 17, 2014Date of Patent: March 10, 2015Assignee: Corning IncorporatedInventors: Steven Bruce Dawes, Douglas Hull Jennings
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Publication number: 20140199506Abstract: The disclosure relates to methods of forming a vessel and to the resulting vessel. The vessel may be formed by providing a first fumed silica soot layer comprised of primary particles of fumed silica soot, and then providing over the first fumed silica soot layer a second fumed silica soot layer comprised of agglomerated particles formed into an agglomerated form from primary particles of fumed silica soot. The primary particles of the first fumed silica soot layer may have a substantially uniform density distribution, and the agglomerated particles of the second fumed silica soot layer may have a substantially non-uniform density distribution. The methods may include consolidating the first and second soot layers together to form a consolidated body.Type: ApplicationFiled: March 17, 2014Publication date: July 17, 2014Applicant: CORNING INCORPORATEDInventors: Steven Bruce DAWES, Douglas Hull JENNINGS
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Publication number: 20140060118Abstract: Manufacturing an optical fiber by using an outside vapor deposition technique for making a substrate, applying one or more layers to the substrate using a radial pressing technique to form a soot blank, sintering the soot blank in the presence of a gaseous refractive index-modifying dopant, and drawing the sintered soot blank, provides a more efficient and cost effective process for generating complex refractive index profiles.Type: ApplicationFiled: November 27, 2012Publication date: March 6, 2014Inventors: Steven Bruce Dawes, Dominick Fiordimalva, Timothy Leonard Hunt, Douglas Hull Jennings
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Patent number: 8590158Abstract: Methods of making a filter apparatus includes the step of creating a filter stack by axially spacing the porous ceramic plates from one another with a plurality of compliant spacers. In another example, the method includes the step of firing the first filter stack to sinter bond the first plurality of porous ceramic plates together with a first spacing element. In another example, the plurality of plates comprise a composition including catalyst particles and a binder material and the plates are fired to form porous plates without sintering a substantial amount of the catalyst particles. Methods of fabricating a porous ceramic article also include providing a porous substrate with a first material composition including mullite and infiltrating the pores of the substrate with a second material composition including cordierite. The method further includes the step of firing the first composition and the second composition to form the porous ceramic article.Type: GrantFiled: October 29, 2010Date of Patent: November 26, 2013Assignee: Corning IncorporatedInventors: Michael Thomas Gallagher, Keith Leonard House, Douglas Hull Jennings, Steven Bolaji Ogunwumi, Patrick David Tepesch
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Publication number: 20120102706Abstract: Methods of making a filter apparatus includes the step of creating a filter stack by axially spacing the porous ceramic plates from one another with a plurality of compliant spacers. In another example, the method includes the step of firing the first filter stack to sinter bond the first plurality of porous ceramic plates together with a first spacing element. In another example, the plurality of plates comprise a composition including catalyst particles and a binder material and the plates are fired to form porous plates without sintering a substantial amount of the catalyst particles. Methods of fabricating a porous ceramic article also include providing a porous substrate with a first material composition including mullite and infiltrating the pores of the substrate with a second material composition including cordierite. The method further includes the step of firing the first composition and the second composition to form the porous ceramic article.Type: ApplicationFiled: October 29, 2010Publication date: May 3, 2012Inventors: Michael Thomas Gallagher, Keith Leonard House, Douglas Hull Jennings, Steven Bolaji Ogunwumi, Patrick David Tepesch