Patents by Inventor Bruce G. Aitken
Bruce G. Aitken 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: 5389584Abstract: This invention is directed to the production of transparent glasses exhibiting excellent transmission far into the infrared region of the electromagnetic radiation spectrum, said glasses consisting essentially, expressed in terms of mole percent on the sulfide basis, of 55-95% GeS.sub.2, 2-40% As.sub.2 S.sub.3, 0.01-20% R.sub.2 S.sub.3, wherein R is at least one trivalent network forming cation selected from the group consisting of gallium and indium, 0-10% MS.sub.x, wherein M is at least one modifying cation selected from the group consisting of aluminum, barium, cadmium, calcium, lead, lithium, mercury, potassium, silver, sodium, strontium, thallium, tin, yttrium, and a rare earth metal of the lanthanide series, 0-20% total of at least one halide selected from the group consisting of chloride and fluoride, 0-5% total selenide, and wherein the sulfur and/or selenium content can vary between 85-125% of the stoichiometric value.Type: GrantFiled: April 11, 1994Date of Patent: February 14, 1995Assignee: Corning IncorporatedInventors: Bruce G. Aitken, Mark A. Newhouse
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Patent number: 5367012Abstract: This invention is directed to an alloy, and a method of producing an alloy, of increased resistance to moisture, comprising a melt mixture of at least one phosphate glass, at least one organic thermoplastic or thermosetting polymer, and an amount of a water soluble stabilizer component which provides a source of metal cations having a valency of 2.sup.+ or higher The amount of the stabilizer component added is that amount effective to improve the alloy's resistance to moisture. Preferably, the alloy is comprised of: (a) 5-80% of the matrix material; (b) 15-90% of the phosphate glass; and, (c) 0.1 to 40% of the stabilizer component. Additionally, the metal cations which are found in the stabilizer component and which form part of the insoluble surface layer are preferably selected from the group consisting of Ba.sup.2+, Mg.sup.2+, Ca.sup.2+, Al.sup.3+, Zn.sup.2+, Sr.sup.+2 and Fe.sup.3+.Type: GrantFiled: August 9, 1993Date of Patent: November 22, 1994Assignee: Corning IncorporatedInventors: Bruce G. Aitken, Dana C. Bookbinder, James E. Dickinson, Jr., Brent M. Wedding
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Patent number: 5346865Abstract: This invention is directed to the production of transparent glasses exhibiting transmission far into the infrared regime of the radiation spectrum. The glasses consist essentially, in mole percent, of 42-55% CdF.sub.2 and/or CdCl.sub.2, 30-40% NaF and/or NaCl, 2-20% total of BaF.sub.2 and/or BaCl.sub.2 +KF and/or KCl, consisting of 0-15% BaF.sub.2 and/or BaCl.sub.2 and 0-7% KF and/or KCl, 1-12% total of at least one stabilizing metal halide selected from the group LiX, BeX.sub.2, MgX.sub.2, MnX.sub.2, PbX.sub.2, TlX, COX.sub.2, and ZnX.sub.2, and 0,005-0.5% REX.sub.3, wherein Re is at least one rare earth metal selected from the lanthanide series of rare earth metals and X is at least one halide selected from the group consisting of fluoride, chloride, and bromide. The preferred glasses contain at least 2% each of BaF.sub.2 and/or BaCl.sub.2 and KF and/or KCl.Type: GrantFiled: July 6, 1993Date of Patent: September 13, 1994Assignee: Corning IncorporatedInventors: Bruce G. Aitken, Frank A. Annunziata, Roger F. Bartholomew, Mark A. Newhouse, Mark L. Powley, Andrea L. Sadd
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Patent number: 5330940Abstract: This invention relates to a fiberizable glass compositions consisting essentially, expressed in terms of mole percent on the oxide basis, of at least 65% total of 5-55% ZnO, 28-40% P.sub.2 O.sub.5, 0.3-5% MoO.sub.3 and 10-35% R.sub.2 O, wherein R.sub.2 O consists of at least two alkali metal oxides in the indicated proportions selected from the group consisting of 0-25% Li.sub.2 O, 0-25% Na.sub.2 O, and 0-25% K.sub.2 O, and up to 35% total of optional ingredients in the indicated proportions selected from the group consisting of 0-10% Al.sub.2 O.sub.3, 0-15% B.sub.2 O.sub.3, 0-15% Al.sub.2 O.sub.3 +B.sub.2 O.sub.3, 0-15% Cu.sub.2 O, 0-25% Sb.sub.2 O.sub.3 0-5% F, 0-35% PbO, 0-35% SnO, 0-35% PbO+SnO, 0-5% ZrO.sub.2, 0-4% SiO.sub.2, 0-20% MgO+CaO+SrO+BaO+MnO, 0-20% MgO, 0-20% CaO, 0-20% SrO, 0-20% BaO and 0-10% MnO, and 0-5% rare earth metal oxide.Type: GrantFiled: July 6, 1992Date of Patent: July 19, 1994Assignee: Corning IncorporatedInventors: Bruce G. Aitken, George H. Beall, Candace J. Quinn
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Patent number: 5286683Abstract: This invention is directed to the production of glasses exhibiting transition temperatures below 375.degree. C., preferably below 350.degree. C., and superior resistance to attack by boiling water. The glasses contain at least 10% copper, as expressed in terms of CuO, the predominant proportion of the copper being present in the Cu.sup.+2 oxidation state. The glasses consist essentially, in mole percent, of______________________________________ Li.sub.2 O 0-15 MgO 0-15 B.sub.2 O.sub.3 0-5 Na.sub.2 O 0-20 CaO 0-20 ZnO 0-37 K.sub.2 O 0-10 SrO 0-20 Sb.sub.2 O.sub.3 0-36 Tl.sub.2 O 0-15 BaO 0-20 CeO.sub.2 0-3 Li.sub.2 O + Na.sub.2 O + 12-30 MgO + 0-25 MoO.sub.3 0-7 K.sub.2 O + Tl.sub.2 O CaO + SrO + BaO CuO 10-50 Al.sub.2 O.sub.3 + B.sub.2 O.sub.3 0-5 RE.sub.2 O.sub.3 0-2 P.sub.2 O.sub.5 28-36 Al.sub.2 O.sub.3 0-5 WO.sub.3 0-7 MnO 0-20 ______________________________________wherein at least two alkali metal oxides are present and up to 12% by weight fluoride may optionally be present.Type: GrantFiled: November 5, 1992Date of Patent: February 15, 1994Assignee: Corning IncorporatedInventor: Bruce G. Aitken
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Patent number: 5283212Abstract: This invention relates to thallium tellurite glasses possessing a high Verdet constant and high optical nonlinearity, as well as good visible and infrared transmission, making them suitable materials for the fabrication of active optical devices. The glasses consist essentially, expressed in terms of cation percent, of 5-74.5% TeO.sub.2, 0.5-20% SiO.sub.2, 4-50% TlO.sub.0.5, and 0-71% PbO, wherein PbO+T10.sub.0.5.gtoreq.25 %, TeO.sub.2 +SiO.sub.2 .gtoreq.25%, and TeO.sub.2 +SiO.sub.2 +TlO.sub.0.5 +PbO constitutes at least 65% of the total composition.Type: GrantFiled: December 17, 1992Date of Patent: February 1, 1994Assignee: Corning IncorporatedInventors: Bruce G. Aitken, Douglas W. Hall, Mark A. Newhouse
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Patent number: 5283211Abstract: This invention relates to thallium germanate, tellurite, and antimonite glasses possessing high optical nonlinearity, as well as good visible and infrared transmission, making them suitable materials for the fabrication of active optical devices.Type: GrantFiled: September 21, 1992Date of Patent: February 1, 1994Assignee: Corning IncorporatedInventors: Bruce G. Aitken, Douglas W. Hall, Mark A. Newhouse
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Patent number: 5273837Abstract: Thermal-shock-resistant fuel cell designs comprising flat and corrugated ceramic sheets combined to form channeled structures, the sheets being provided as thin, flexible ceramics and being particularly effective when used as components of compliant electrolyte substructures incorporating the flexible ceramics with fuel cell electrodes and/or current conductors bonded thereto, are described.Type: GrantFiled: December 23, 1992Date of Patent: December 28, 1993Assignee: Corning IncorporatedInventors: Bruce G. Aitken, Margaret K. Faber, Thomas D. Ketcham, Dell J. St. Julien
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Patent number: 5256604Abstract: This invention is directed to the production of glasses exhibiting an annealing point between 290.degree.-325.degree. C., an index of refraction between 1.57-1.66, a linear coefficient of thermal expansion (25.degree.-300.degree. C.) between 130-160.times.10.sup.-7 /.degree.C., and a weight loss after exposure to boiling water for six hours no greater than 0.1% consisting essentially, expressed in terms of mole percent on the oxide basis, of______________________________________ Li.sub.2 O 0-10 CaO + SrO + 0-20 BaO(RO) Na.sub.2 O 0-10 ZnO 26-50 Li.sub.2 O + Na.sub.2 O 1-20 RO + ZnO 26-50 K.sub.2 O 0-8 SnO 0-5 Li.sub.2 O + Na.sub.2 O + 5-25 Sb.sub.2 O.sub.3 0-8 K.sub.2 O(R.sub.2 O) Ag.sub.2 O 0-13 Al.sub.2 O.sub.3 0.25-5 Tl.sub.2 O 0-12 P.sub.2 O.sub.5 30-36 Ag.sub.2 O + Tl.sub.2 O 1-14 B.sub.2 O.sub.3 0-5 R.sub.2 O + Ag.sub.2 O + Tl.sub.2 O 15-30 CuO 0-5 CaO 0-20 Bi.sub.2 O.sub.3 0-3 BaO 0-10 CeO.sub.Type: GrantFiled: April 24, 1992Date of Patent: October 26, 1993Assignee: Corning IncorporatedInventor: Bruce G. Aitken
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Patent number: 5246890Abstract: Lead-free, SnO-ZnO-P.sub.2 O.sub.5 glasses contain 25-50 mole percent P.sub.2 O.sub.5 and SnO and ZnO in amounts such that the mole ratio of SnO:ZnO is in the range of 1:1 to 5:1. Optionally, the glasses may contain up to 20 mole percent of modifying oxides including up to 5 mole percent SiO.sub.2, up to 20 mole percent B.sub.2 O.sub.3 and up to 5 mole percent Al.sub.2 O.sub.3, as well as one or more crystallization promoters selected from 1-5 mole percent zircon and/or zirconia and 1-15 mole percent R.sub.2 O. The glasses are particularly useful as sealing glass frits in sealing material to join component parts in articles such as cathode ray tubes. The sealing glass material may contain mill additions to reduce the effective coefficient of thermal expansion in a seal.Type: GrantFiled: August 3, 1992Date of Patent: September 21, 1993Assignee: Corning IncorporatedInventors: Bruce G. Aitken, Dana C. Bookbinder, Margaret E. Greene, Robert M. Morena
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Patent number: 5240885Abstract: This invention is directed to the production of transparent glasses exhibiting transmission far into the infrared regime of the radiation spectrum. The glasses consist essentially, in mole percent, of 42-55% CdF.sub.2 and/or CdCl.sub.2, 2-15% BaF.sub.2 and/or BaCl.sub.2, 30-40% NaF and/or NaCl, 2-7% KF and/or KCl, 1-12% total of at least one stabilizing metal halide selected from the group LiX, BeX.sub.2, MgX.sub.2, MnX.sub.2, PbX.sub.2, TlX, CoX.sub.2, and ZnX.sub.2, and 0.005-0.5% ReX.sub.3, wherein Re is at least one rare earth metal selected from the lanthanide series of rare earth metals and X is at least one halide selected from the group consisting of fluoride, chloride, and bromide.Type: GrantFiled: September 21, 1992Date of Patent: August 31, 1993Assignee: Corning IncorporatedInventors: Bruce G. Aitken, Frank A. Annunziata, Roger F. Bartholomew, Mark A. Newhouse, Mark L. Powley, Andrea L. Sadd
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Patent number: 5179045Abstract: A transparent glass-ceramic and an article of cookware formed therefrom. The glass-ceramic has as its primary crystal phase a beta-quartz solid solution, contains an amount of TiO.sub.2 effective as a nucleating agent up to about 6%, and has a color package composed of 50 to 150 ppm Co.sub.3 O.sub.4, 50 to 250 ppm NiO and 400 to 1000 ppm Fe.sub.2 O.sub.3 that provides a burgundy color.Type: GrantFiled: August 30, 1991Date of Patent: January 12, 1993Assignee: Corning IncorporatedInventors: Bruce G. Aitken, Robert W. Pfitzenmaier, Charles C. Smith, Jr.
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Patent number: 5168079Abstract: This invention relates to glasses exhibiting very high optical non-linearity, very high Verdet constants, very high electro-optic constants, and excellent transmissions of infrared radiation. The glasses consist essentially, in cation percent, of:______________________________________ T10.sub.0.5 20-55 GeO.sub.2 0-17 BiO.sub.1.5 0-67 PbO 0-40 GaO.sub.1.5 13-30 T10.sub.0.5 + BiO.sub.1.5 + PbO 70-87 SiO.sub.2 0-5 TeO.sub.Type: GrantFiled: October 31, 1991Date of Patent: December 1, 1992Assignee: Corning IncorporatedInventors: Bruce G. Aitken, Nicholas F. Borrelli
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Patent number: 5153151Abstract: This invention is drawn to fluorine-free glasses having refractive indices of at least 1.65 which generally consist, in mole percent, of:______________________________________ P.sub.2 O.sub.5 24-36 ZnO 0-45 Li.sub.2 O 0-15 Na.sub.2 O 0-20 K.sub.2 O 0-10 Ag.sub.2 O 0-25 Tl.sub.2 O 0-25 Li.sub.2 O + Na.sub.2 O + K.sub.2 O + Ag.sub.2 O + Tl.sub.2 O 15-30 PbO 0-20 CaO 0-20 CuO 0-5 CeO.sub.2 0-2 SrO 0-20 BaO 0-20 CaO + SrO + BaO 0-25 Sb.sub.2 O.sub.3 0-61 Bi.sub.2 O.sub.3 0-10 Sb.sub.2 O.sub.3 + Bi.sub.2 O.sub.3 0-61 Sb.sub.2 O.sub.3 + Bi.sub.2 O.sub.3 + Ag.sub.2 O + Tl.sub.2 O 7-76 SnO 0-5 Al.sub.2 O.sub.3 0-5 B.sub.2 O.sub.3 0-10 Al.sub.2 O.sub.3 + B.sub.2 O.sub.Type: GrantFiled: May 6, 1991Date of Patent: October 6, 1992Assignee: Corning IncorporatedInventor: Bruce G. Aitken
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Patent number: 5093288Abstract: This invention relates to thallium germanate, tellurite, and antimonite glasses possessing high optical nonlinearity, as well as good visible and infrared transmission, making them suitable materials for the fabrication of active optical devices.Type: GrantFiled: November 28, 1990Date of Patent: March 3, 1992Assignee: Corning IncorporatedInventors: Bruce G. Aitken, Douglas W. Hall, Mark A. Newhouse
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Patent number: 5064460Abstract: This invention is directed to the formation of blue-to-black transparent glass-ceramic articles containing .beta.-quartz solid solution as essentially the sole crystal phase present therein. The articles are prepared by heat treating reduced precursor glass articles consisting essentially, in weight percent, of 2.5-5% Li.sub.2 O, 1-2% MgO, 18-30% Al.sub.2 O.sub.3, 2-4% TiO.sub.2, 1-4% ZrO.sub.2, 48-70% SiO.sub.2, 1-12% P.sub.2 O.sub.5, and 0-2% ZnO. The precursor glass articles are placed in a reduced state through the inclusion of a sufficient amount of a hydrogen-containing phosphate and/or chloride and/or Ti.sub.2 O.sub.3 to obtain about 0.2-6% of the total titanium content in the form of Ti.sup.+3 ions.Type: GrantFiled: October 29, 1990Date of Patent: November 12, 1991Assignee: Corning IncorporatedInventor: Bruce G. Aitken
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Patent number: 5022921Abstract: This invention is particularly directed to the production of glass molds for use in press molding optically finished lenses. The inventive glass compositions consist essentially, in mole percent, of 34-56% ZnO, 4-14% Al.sub.2 O.sub.3, 40-52% P.sub.2 O.sub.5, and up to 15% total of optional modifying oxides including up to 5% Li.sub.2 O and/or Na.sub.2 O and/or K.sub.2 O, up to 5% Sb.sub.2 O.sub.3, and up to 15% total of CaO and/or SrO and/or BaO.Type: GrantFiled: October 19, 1990Date of Patent: June 11, 1991Assignee: Corning IncorporatedInventor: Bruce G. Aitken
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Patent number: 5021366Abstract: This invention is drawn particularly to the production of glasses having essentially fluorine-free compositions consisting essentially, in mole percent, of:______________________________________ Li.sub.2 O 5-10 P.sub.2 O.sub.5 30-36 Na.sub.2 O 5-15 Al.sub.2 O.sub.3 0-5 K.sub.2 O 0-6 CeO.sub.2 0-2 Li.sub.2 O + Na.sub.2 O + K.sub.2 O 15-25 SnO 0-20 ZnO 10-33 PbO 0-20 CaO 0-20 Sb.sub.2 O.sub.3 0-12 SrO 0-20 Bi.sub.2 O.sub.3 0-6 BaO 0-20 SnO + PbO + 0-20. Sb.sub.2 O.sub.3 + Bi.sub.2 O.sub.Type: GrantFiled: October 19, 1990Date of Patent: June 4, 1991Assignee: Corning IncorporatedInventor: Bruce G. Aitken
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Patent number: 4940678Abstract: This invention relates to glasses consisting essentially, by weight, of about 35-72% Ln.sub.2 O.sub.3, 5-37% Al.sub.2 O.sub.3, 29-56% SiO.sub.2, and 4-7.5% N. Up to about one-half of the Ln.sub.2 O.sub.3 on an atomic basis may be replaced with SrO and/or BaO. A transparent glass can be formed which contains about 40-60% on a molar basis of Ln.sub.2 O.sub.3 +SrO and/or BaO and wherein the atomic ratio Sr and/or Ba:Sr and/or Ba+Ln >0.4.Type: GrantFiled: July 27, 1989Date of Patent: July 10, 1990Assignee: Corning IncorporatedInventor: Bruce G. Aitken
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Patent number: 4784976Abstract: This invention is directed to the production of glass-ceramic articles wherein a NZP-type crystals constitutes essentially the sole crystal phase. The inventive articles are prepared by heat treating precursor glass articles with compositions having the stoichiometry characterized by the formula A.sub.0-4 B.sub.2 (XO.sub.4).sub.3 wherein A represents at least one monovalent or divalent cation selected from the group consisting of Zn, Mg, Mn, Fe, Co, Ni, Cu, Ca, Cd, Sr, Ba, Tb, Li, Na, and K, B represents at least one trivalent, tetravalent, or pentavalent cation selected from the group consisting of Fe, Ti, Cr, Zr, Nb, Mo, In, Sn, Y, and a RE, and X represents P cations which may be partially replaced by Si cations, and the cation ratio B:X is essentially 2:3.Type: GrantFiled: November 27, 1987Date of Patent: November 15, 1988Assignee: Corning Glass WorksInventor: Bruce G. Aitken