Patents by Inventor Paige L. Higby
Paige L. Higby 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: 20120144869Abstract: A method of incorporating within a glass optical waveguide a material of interest having a property of interest that would be neutralized by exposure to molten glass includes combining pieces of a light-transmissive first glass with the material of interest. The combined first glass and material of interest are shaped within a container and heated to a temperature sufficiently high to cause the glass pieces and material of interest to mutually coalesce and form a light-transmissive core rod, but not high enough that the first glass melts and neutralizes the property of interest. A cladding tube is heated and fused about the core rod to define a mono rod. An optical waveguide through which light propagates by internal reflection, and which incorporates the material of interest, is defined when the cladding tube comprises a glass that renders the cladding of lower refractive index than the core rod.Type: ApplicationFiled: December 1, 2011Publication date: June 14, 2012Inventors: Kevin F. Tabor, Paige L. Higby
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Patent number: 6998362Abstract: An infrared and ultraviolet absorbing soda-lime-silica glass of a neutral tint containing 0.3% to 0.7% by weight total iron expressed as Fe2O3, together with amounts of Se, Co3O4 and a ferrous iron content to provide a ratio of ferrous iron to total iron in the range of 21 to 34. NiO and TiO2 may be added to the glass. The resultant glass, in a nominal 4 mm thickness, has a visible light transmission of at least 70% and a direct solar heat transmission at least 12 percentage points below the visible light transmission. The iron in the glass is preferably provided by the inclusion of the mineral wuestite in the glass batch formulation.Type: GrantFiled: August 31, 2001Date of Patent: February 14, 2006Assignees: Pilkington PLC, Pilkington North America, Inc.Inventors: Paige L. Higby, Bret E. Penrod, Rodney G. Baker, Kenneth Melvin Fyles, Helen Louise McPhail
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Publication number: 20020025899Abstract: An infrared and ultraviolet absorbing soda-lime-silica glass of a neutral tint containing 0.3% to 0.7% by weight total iron expressed as Fe2O3, together with amounts of Se, Co3O4 and a ferrous iron content to provide a ratio of ferrous iron to total iron in the range of 21 to 34. NiO and TiO2 may be added to the glass. The resultant glass, in a nominal 4 mm thickness, has a visible light transmission of at least 70% and a direct solar heat transmission at least 12 percentage points below the visible light transmission. The iron in the glass is preferably provided by the inclusion of the mineral wuestite in the glass batch formulation.Type: ApplicationFiled: August 31, 2001Publication date: February 28, 2002Applicant: LIBBEY-OWENS-FORD CO.Inventors: Paige L. Higby, Bret E. Penrod, Rodney G. Baker, Kenneth Melvin Fyles, Helen Louise McPhail
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Patent number: 6207284Abstract: Silicate based glass compositions with nitrogen compounds are included in the composition as performance modifiers to impart desirable color and improved energy absorbance properties. The nitrogen compound is, generally, a metal nitride which is added to the batch glass composition in amounts greater than 0.05 weight percent prior to melting the composition and method resulting in a finished glass suitable for use in architectural and automotive glazings.Type: GrantFiled: October 20, 1998Date of Patent: March 27, 2001Assignee: Libben-Owens-Ford Co.Inventors: Srikanth Varanasi, Paige L. Higby, Gwendolyn A. Young
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Patent number: 6196027Abstract: The invention is a method of making silicate based glass compositions with phosphorus compounds included in the composition as spectral modifiers to impart desirable color and improved energy absorbance properties. The phosphorus compound is generally a metal phosphide which is added to the batch glass composition in amounts greater than 0.05 weight percent prior to melting. The composition and method result in a finished glass suitable for use in architectural and automotive glazings.Type: GrantFiled: July 22, 1999Date of Patent: March 6, 2001Assignee: Libbey-Owens-Ford Co.Inventors: Srikanth Varanasi, Michael B. Purvis, Paige L. Higby, Kevin V. Goodwin, Gwendolyn A. Young
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Patent number: 6133176Abstract: Silicate based glass compositions with boron compounds are included in the composition as performance modifiers to impart desirable color and improved energy absorbance properties. The boron compound is, generally, a metal boride which is added to the batch glass composition in amounts greater than 0.05 weight percent prior to melting the composition and method resulting in a finished glass suitable for use in architectural and automotive glazings.Type: GrantFiled: October 20, 1998Date of Patent: October 17, 2000Assignee: Libbey-Owens-Ford Co.Inventors: Srikanth Varanasi, Paige L. Higby, Gwendolyn A. Young
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Patent number: 6110583Abstract: Silicate based glass compositions with phosphorus compounds included in the composition as spectral modifiers to impart desirable color and improved energy absorbance properties are disclosed. The phosphorus compound is generally a metal phosphide which is added to the batch glass composition in amounts greater than 0.05 weight percent prior to melting. The composition and method result in a finished glass suitable for use in architectural and automotive glazings.Type: GrantFiled: July 22, 1999Date of Patent: August 29, 2000Assignee: Libbey-Owens-Ford Co.Inventors: Srikanth Varanasi, Michael B. Purvis, Paige L. Higby, Kevin V. Goodwin, Gwendolyn A. Young
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Patent number: 6001753Abstract: Silicate based glass compositions with phosphorus compounds included in the composition as spectral modifiers to impart desirable color and improved energy absorbance properties. The phosphorus compound is generally a metal phosphide which is added to the batch glass composition in amounts greater than 0.05 weight percent prior to melting. The composition and method result in a finished glass suitable for use in architectural and automotive glazings.Type: GrantFiled: December 11, 1997Date of Patent: December 14, 1999Assignee: Libbey-Owens-Ford Co.Inventors: Srikanth Varanasi, Michael B. Purvis, Paige L. Higby, Kevin V. Goodwin, Gwendolyn A. Young
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Patent number: 5994249Abstract: A soda-lime-silica glass having, at a thickness in the range of 3 mm to 10 mm, a visible light transmittance of 35% to 75%, a total solar radiation transmittance in the range of 20% to 60%, an ultraviolet radiation transmission less than 55%, and a blue color defined by the "CIELAB" system of L=65 to 90, a*=-15 to -4, and b*=-15 to -2. The soda-lime-silica glass composition includes the essential ingredients of about 0.5% to about 0.9% weight percent total iron (as Fe.sub.2 O.sub.3), about 50 ppm to 100 ppm CoO, and about 0.1 to about 2.0 weight percent TiO.sub.2, with a ferrous iron to total iron ratio of about 20% to about 40%.Type: GrantFiled: July 23, 1998Date of Patent: November 30, 1999Assignee: Libbey-Owens-Ford Co.Inventors: Dennis R. Graber, Paige L. Higby
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Patent number: 5780372Abstract: A moderate visible light transmitting soda-lime-silica glass of a blue green tint having, at a nominal 4 mm thickness, a visible light transmittance of about 10% to about 70%, and a direct solar heat transmittance of at least 5% less than the visible light transmittance. The soda-lime-silica glass composition includes the essential ingredients of about 1 to about 3 weight percent Fe.sub.2 O.sub.3, about 0.1 to about 1 weight percent TiO.sub.2, and about 0 to 500 ppm Co.sub.3 O.sub.4 with a ferrous iron to total iron content of about 10% to about 37% by weight.Type: GrantFiled: January 10, 1997Date of Patent: July 14, 1998Assignee: Libbey-Owens-Ford Co.Inventor: Paige L. Higby
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Patent number: 5747398Abstract: A solar heat reducing and ultraviolet absorbing soda-lime-silica glass of a neutral tint and high visible light transmittance. The glass has the essential colorants of from about 0.1 to about 0.7 weight percent Fe.sub.2 O.sub.3 (total iron), and either from about 0.1 to about 1.0 weight percent of a compound selected from the group consisting of titanium dioxide, vanadium pentoxide, and ceric oxide, or alternatively from about 0.1 to about 2.0 weight percent of a combination of colorants selected from the group, and having a ferrous value of less than 35 percent.Type: GrantFiled: November 5, 1996Date of Patent: May 5, 1998Assignee: Libbey-Owens-Ford Co.Inventors: Paige L. Higby, Dean E. Vernacotola, Bret E. Penrod
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Patent number: 5650365Abstract: A neutral, generally green-gray low transmittance (no more than 50 percent luminous transmittance) soda-lime-silica glass has reduced solar energy transmittance and reduced ultra violet radiation transmittance when provided with the following colorant constituents in percent by weight:______________________________________ Fe.sub.2 O.sub.3 (total iron) 1.3-2 NiO 0.01-0.05 CoO 0.02-0.04 Se 0.0002-0.003 TiO.sub.2 0.09-3 ______________________________________The glass has a ferrous value in the range of 18 to 30.Type: GrantFiled: September 17, 1996Date of Patent: July 22, 1997Assignee: Libbey-Owens-Ford Co.Inventors: Paige L. Higby, Kevin V. Goodwin
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Patent number: 5641716Abstract: A neutral, generally green colored, infrared energy and ultraviolet radiation absorbing glass composition comprises conventional soda-lime-silica float glass ingredients, a relatively high concentration of moderately reduced iron, and titanium oxide(s). The resultant glass exhibits an Illuminant A visible light transmittance of at least 70%, a total solar energy transmittance not greater than about 46%, and an ultraviolet radiation transmittance not greater than approximately 38%, at selected glass thicknesses in the range of 3 mm to 5 mm. The titanium oxide(s) as well as at least a portion of the iron in the glass is provided by the inclusion of the mineral ilmenite in the glass batch formulation.Type: GrantFiled: May 31, 1996Date of Patent: June 24, 1997Assignee: Libbey-Owens-Ford Co.Inventors: Paige L. Higby, Bret E. Penrod, J. Joseph Cheng, Rodney G. Baker
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Patent number: 5478783Abstract: An infrared and ultraviolet absorbing soda-lime-silica glass of a neutral tint containing 0.3% to 0.7% by weight total iron expressed as Fe.sub.2 O.sub.3, together with amounts of Se, Co.sub.3 O.sub.4 and a ferrous iron content to provide a ratio of ferrous iron to total iron in the range of 21 to 34. NiO and TiO.sub.2 may be added to the glass. The resultant glass, in a nominal 4 mm thickness, has a visible light transmission of at least 70% and a direct solar heat transmission at least 12 percentage points below the visible light transmission. The iron in the glass is preferably provided by the inclusion of the mineral wuestite in the glass batch formulation.Type: GrantFiled: August 3, 1994Date of Patent: December 26, 1995Assignee: Libbey-Owens-Ford Co.Inventors: Paige L. Higby, Bret E. Penrod
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Patent number: 5308805Abstract: A neutral, generally green-gray low transmittance (no more than 25 luminous transmittance) soda-lime-silica glass has reduced solar energy transmittance when provided with the following colorant constituents in percent by weight:______________________________________ Fe.sub.2 O.sub.3 (total iron) 1.3-2 NiO 0.01-0.05 CoO 0.02-0.04 Se 0.0002-0.003 ______________________________________The glass has a ferrous value in the range of 18 to 30.Type: GrantFiled: May 5, 1993Date of Patent: May 3, 1994Assignees: Libbey-Owens-Ford Co., Pilkington PlcInventors: Rodney G. Baker, Paige L. Higby
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Patent number: 5305414Abstract: Optical fibers and glass composition comprising a mixture of barium oxide, gallium oxide, germanium oxide, and a modifying agent selected from lanthium oxide, indium oxide, and mixtures thereof; molar ratio of barium oxide to gallium oxide is from about 4:1 to about 1:1, preferably 2:1 to 1, and especially about 1:1; amount of germanium oxide is at least 40 mole percent, preferably 60 to 95 mole percent, and especially 65 to 90 mole percent; about 0.1 to about 5 mole percent, preferably 0.5 to 4, of gallium oxide is replaced with the modifying agent. The optical fibers made from the glass composition defined herein, with or without the modifying agent, have light transmission wavelength band of about 0.3 to 4 microns; lower optical loss than silica-based optical fibers, the minimum optical loss of the novel fibers having the potential of 0.05 dB/km at 2 microns.Type: GrantFiled: August 3, 1992Date of Patent: April 19, 1994Assignee: The United States of America as represented by the Secretary of the NavyInventors: Paige L. Higby, Ishwar D. Aggarwal, Edward J. Friebele