Patents by Inventor Cecil V. Francis
Cecil V. Francis 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: 20220164940Abstract: A device for analyzing or inspecting a prepared portion of a power cable includes a cable gripping section to grip a portion of the power cable proximate to a prepared end of the power cable, where the cable end has been prepared by removing certain portions of the power cable so that it can properly accept an electrical or cable accessory, such as a splice or termination. The device also includes an imaging device holding section to hold an imaging device at a predetermined radial distance from the prepared cable end. In particular, the imaging device holding section is radially and axially adjustable in position. During inspection of the prepared cable end, the imaging device is fully rotated about the prepared cable end to acquire a 360 degree image of the prepared cable end.Type: ApplicationFiled: April 10, 2019Publication date: May 26, 2022Inventors: Cecil V. Francis, Sally M. Grambusch, Robert A, Hale, Qingqiang Ma, Dougtas B. Gundel, Huo Ying Lu
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Patent number: 10208190Abstract: A coating composition which imparts antifog, antireflective, easy-cleaning, and/or antistatic properties to substrates coated therewith. The coating compositions utilize nanoparticles functionalized with amine groups and/or protected amine groups, and amine-reactive groups.Type: GrantFiled: April 16, 2015Date of Patent: February 19, 2019Assignee: 3M Innovative Properties CompanyInventors: Naiyong Jing, Zhigang Yu, Xue-hua Chen, Bangwei Xi, Appuswamy Devasenapathi, WeiDe Liu, George VanDyke Tiers, Justin A. Riddle, Deivaraj Theivanayagam Chairman, Michelle L. Legatt, Cecil V. Francis
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Publication number: 20150307753Abstract: A conductive resilient hollow microsphere comprises a conductive layer enclosing a resilient polymeric hollow microsphere. An adhesive composition includes an insulating adhesive component and a plurality of the conductive resilient hollow microspheres. Adhesive articles including the adhesive composition are also disclosed. Methods of making the same are also disclosed.Type: ApplicationFiled: November 16, 2012Publication date: October 29, 2015Inventors: Weide LIU, Badri VEERARAGHAVAN, Cecil V. FRANCIS, Yiwen CHU, Jing FANG
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Publication number: 20150218351Abstract: A coating composition which imparts antifog, antireflective, easy-cleaning, and/or antistatic properties to substrates coated therewith. The coating compositions utilize nanoparticles funtionalized with amine groups and/or protected amine groups, and amine-reactive groups.Type: ApplicationFiled: April 16, 2015Publication date: August 6, 2015Inventors: Naiyong Jing, Zhigang Yu, Xue-hua Chen, Bangwei Xi, Appuswamy Devasenapathi, WeiDe Liu, George VanDyke Tiers, Justin A. Riddle, Deivaraj Theivanayagam Chairman, Michelle L. Legatt, Cecil V. Francis
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Patent number: 9034489Abstract: A coating composition which imparts antifog, antireflective, easy-cleaning, and/or antistatic properties to substrates coated therewith. The coating compositions utilize nanoparticles funtionalized with amine groups and/or protected amine groups, and amine-reactive groups.Type: GrantFiled: June 30, 2010Date of Patent: May 19, 2015Assignee: 3M Innovative Properties CompanyInventors: Naiyong Jing, Zhigang Yu, Xue-hua Chen, Bangwei Xi, Appuswamy Devasenapathi, Wei De Liu, George Van Dyke Tiers, Justin A. Riddle, Deivaraj Theivanayagam Chairman, Michelle L. Legatt, Cecil V. Francis
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Publication number: 20120088106Abstract: A coating composition which imparts antifog, antireflective, easy-cleaning, and/or antistatic properties to substrates coated therewith. The coating compositions utilize nanoparticles funtionalized with amine groups and/or protected amine groups, and amine-reactive groups.Type: ApplicationFiled: June 30, 2010Publication date: April 12, 2012Inventors: Naiyong Jing, Zhigang Yu, Xue-hua Chen, Bangwei Xi, Appuswamy Devasenapathi, Wei De Liu, George Van Dyke Tiers, Justin A. Riddle, Deivaraj Theivanayagam Chairman, Michelle L. Legatt, Cecil V. Francis
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Patent number: 5578251Abstract: A process for preparing polar disulfone-functionalized molecules, which process comprises performing one or more of the following reactions:(i) reacting a vinyl ether disulfone molecule with an activated aromatic molecule, an activated heterocyclic molecule, a dye base, or a dye olefin;(ii) reacting an enamine disulfone molecule with a dye base or a dye olefin; and(iii) reacting an alkenyl disulfone molecule having a vinylogous methyl or methylene group conjugatively located relative to the disulfone group with an aldehyde or an acetal derived from an aldehyde.Type: GrantFiled: August 5, 1994Date of Patent: November 26, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventors: Gary T. Boyd, George V. Tiers, Cecil V. Francis, Eugene P. Janulis, Robert J. Koshar, Louis M. Leichter
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Patent number: 5442089Abstract: This invention provides synthetic routes for novel single isomers of monocarbamate diols and their polymerization to provide novel polyesters, polyurethanes, polycarbonates, and the like having pendant carbamate groups on the polymer chain. Devices using some of these novel polymers which demonstrate nonlinear optical activity are also disclosed.Type: GrantFiled: February 11, 1993Date of Patent: August 15, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: Smarajit Mitra, Cecil V. Francis
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Patent number: 5360582Abstract: Nonlinear optical (NLO) compositions are disclosed which contain polar disulfone-functionalized molecules (PDFMs) incorporated in a polymeric material. When aligned noncentrosymmetrically in the polymeric material, the PDFMs generate a second-order NLO response. There is also disclosed: a method of preparing a NLO composition; novel PDFMs and novel polymers; and a new process for preparing PDFMs.Type: GrantFiled: July 15, 1991Date of Patent: November 1, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventors: Gary T. Boyd, George V. Tiers, Cecil V. Francis, Eugene P. Janulis, Robert J. Koshar, Louis M. Leichter
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Patent number: 5350731Abstract: The present invention provides fluorine-containing arylazoanaline dyes that are useful in thermal transfer systems. Specifically, the present invention provides thermal transfer donor sheets containing dyes of the following formula: ##STR1## wherein: R.sup.1 is a (C.sub.1-20)alkyl or hydroxy(C.sub.1-20)alkyl group; R.sup.2 is a hydroxy(C.sub.1-20)alkyl or (C.sub.1-20)alkylene--OC(O)NH--(C.sub.1-20)alkylene--OC(O)--R.sup.4 wherein R.sup.4 is a (C.sub.1-20)alkenyl group or a polymerized alkenyl group; and R.sup.3 is F or CF.sub.3. Useful dyes of this formulation are stable under ambient conditions for at least about 6 months.Type: GrantFiled: December 7, 1993Date of Patent: September 27, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventors: Linda K. Williams, Prakob Kitipichai, Cecil V. Francis, Ramaiah Muthyala
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Patent number: 5321084Abstract: A second order nonlinear optically-active azo monomer comprising a benzimidazole moiety. The monomers can be incorporated into both linear and crosslinked polymers useful in electrooptical devices.Type: GrantFiled: July 12, 1993Date of Patent: June 14, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventors: Elisa M. Cross, Cecil V. Francis
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Patent number: 5256784Abstract: Nonlinear-optic (NLO) compositions containing functionalized merocyanine dyes, such that the molecules, comprising the NLO-active compositions have a functional group at each end of the molecule and each functional group differing in reactivity, thus permitting stepwise reaction of each functional group, and NLO-active molecules prepared from hemioxonol dyes derviatived with (meth)acrylate or (meth)acrylamide groups, and their uses in devices such as second harmonic generators or polymer integrated optics.Type: GrantFiled: January 16, 1992Date of Patent: October 26, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: Cecil V. Francis, Elisa M. Cross, Roberta E. Harelstad, Paul F. Korkowski, Peter C. Leung, David W. Macomber, John E. Trend
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Patent number: 5239013Abstract: Organic groups covalently bound to a polymer backbone provide second or third order nonlinear susceptibilities to the polymer. In another aspect, a method is disclosed for providing the novel polymers of the invention. Polymers of the invention can be directionally oriented to provide useful optically nonlinear media for use in nonlinear optical devices such as optical switches or light modulation devices.Type: GrantFiled: September 29, 1992Date of Patent: August 24, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: Cecil V. Francis, Steven M. Heilmann, Larry R. Krepski, Jerald K. Rasmussen
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Patent number: 5216084Abstract: Organic groups covalently bound to a polymer backbone provide second or third order nonlinear susceptibilities to the polymer. In another aspect, a method is disclosed for providing the novel polymers of the invention. Polymers of the invention can be directionally oriented to provide useful optically nonlinear media for use in nonlinear optical devices such as optical switches or light modulation devices.Type: GrantFiled: May 11, 1990Date of Patent: June 1, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: Cecil V. Francis, Steven M. Heilmann, Larry R. Krepski, Jerald K. Rasmussen
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Patent number: 5212015Abstract: This invention provides synthetic routes for novel single isomers of monocarbamate diols and their polymerization to provide novel polyesters, polyurethanes, polycarbonates, and the like having pendant carbamate groups on the polymer chain. Devices using some of these novel polymers which demonstrate nonlinear optical activity are also disclosed.Type: GrantFiled: June 26, 1992Date of Patent: May 18, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: Smarajit Mitra, Cecil V. Francis
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Patent number: 5185102Abstract: This invention provides an optical medium and a process therefor wherein the medium exhibits third order nonlinear optical response and comprises a polymer with pendant groups having delocalized pi-electron character forming a charge transfer complex with dopant molecules. The optical medium is useful in optical devices, such as optical switches or light modulation devices as a component or as a coating. In other aspects, novel polymers and polymer complexes are disclosed.Type: GrantFiled: June 8, 1989Date of Patent: February 9, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: Roberta E. Harelstad, Cecil V. Francis, Kenneth M. White
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Patent number: 5163060Abstract: This invention provides synthetic routes for novel single isomers of monocarbamate diols and their polymerization to provide novel polyesters, polyurethanes, polycarbonates, and the like having pendant carbamate groups on the polymer chain. Devices using some of these novel polymers which demonstrate nonlinear optical activity are also disclosed.Type: GrantFiled: September 16, 1991Date of Patent: November 10, 1992Assignee: Minnesota Mining and Manufacturing CompanyInventors: Smarajit Mitra, Cecil V. Francis
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Patent number: 5093456Abstract: This invention provides synthetic routes for novel single isomers of monocarbamate diols and their polymerization to provide novel polyesters, polyurethanes, polycarbonates, and the like having pendant carbamate groups on the polymer chain. Devices using some of these novel polymers which demonstrate nonlinear optical activity are also disclosed.Type: GrantFiled: June 14, 1989Date of Patent: March 3, 1992Assignee: Minnesota Mining and Manufacturing CompanyInventors: Smarajit Mitra, Cecil V. Francis
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Patent number: 5059002Abstract: Devices for and method of generating coherent second harmonic light radiation. The devices comprise a laser source of coherent light radiation at a fixed fundamental frequency, an acentrically crystalline, achiral, straight-chain N-nitrophenyl carbamyl compound, means for directing the output radiation of the laser onto the acentrically crystalline, achiral, straight-chain N-nitrophenyl carbamyl compound, and output means for utilizing the second harmonic frequency. N-nitrophenyl carbamyl compounds, and acentric crystals thereof that are capable of being used in the aforementioned devices and method, are also described herein.Type: GrantFiled: December 21, 1989Date of Patent: October 22, 1991Assignee: Minnesota Mining and Manufacturing CompanyInventors: Cecil V. Francis, George V. D. Tiers
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Patent number: 4952640Abstract: Organic groups covalently bound to a polymer backbone provide second or third order nonlinear susceptibilities to the polymer. In another aspect, a method is disclosed for providing the novel polymers of the invention. Polymers of the invention can be directionally oriented to provide useful optically nonlinear media for use in nonlinear optical devices such as optical switches or light modulation devices.Type: GrantFiled: April 21, 1989Date of Patent: August 28, 1990Assignee: Minnesota Mining and Manufacturing Co.Inventors: Cecil V. Francis, Steven M. Heilmann, Larry R. Krepski, Jerald K. Rasmussen