Patents by Inventor Andrew T. Ruff

Andrew T. Ruff 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).

  • Publication number: 20160229111
    Abstract: A roll of multilayer optical film is described. The roll includes a substantially uniaxially-oriented multilayer optical film, where at least one layer of the multilayer optical film has indices of refraction in a length direction and a thickness direction that are substantially the same, but substantially different from an index of refraction in a width direction.
    Type: Application
    Filed: April 18, 2016
    Publication date: August 11, 2016
    Inventors: William W. Merrill, Jeffery N. Jackson, Andrew T. Ruff, John A. Wheatley, Dennis L. Krueger
  • Patent number: 9314961
    Abstract: A roll of multilayer optical film is described. The roll includes a substantially uniaxially-oriented multilayer optical film, where at least one layer of the multilayer optical film has indices of refraction in a length direction and a thickness direction that are substantially the same, but substantially different from an index of refraction in a width direction.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: April 19, 2016
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: William Ward Merrill, Jeffery N. Jackson, Andrew T. Ruff, John A. Wheatley, Dennis L. Krueger
  • Publication number: 20150243816
    Abstract: The present disclosure generally relates to methods of forming barrier assemblies. Some embodiments include application and removal of a protective layer followed by application of a topsheet. Some embodiments include application and removal of a protective layer including a release agent and a monomer.
    Type: Application
    Filed: August 15, 2013
    Publication date: August 27, 2015
    Inventors: Aan K. Nachtigal, Andrew T. Ruff, Christopher S. Lyons, Guy D. Joly, Joseph C. Spagnola, Mark D. Weigel, Michael D. Delmore, Samuel Kidane, Thomas P. Lun
  • Publication number: 20150214405
    Abstract: The present disclosure generally relates to methods of forming barrier assemblies. Some embodiments include application of an adhesive layer and/or a topsheet to protect the exposed uppermost layer of the barrier stack during roll-to-roll processing. Some embodiments include application of an adhesive layer and/or a topsheet before the exposed, uppermost layer of the barrier film contacts a solid surface or processing roll. Inclusion of an adhesive layer and/or a topsheet protects the oxide layer during processing, which creates an excellent barrier assembly that can be manufactured using roll-to-roll processing.
    Type: Application
    Filed: August 15, 2013
    Publication date: July 30, 2015
    Inventors: Alan K. Nachtigal, Andrew T. Ruff, Christopher S. Lyons, Guy D. Joly, Joseph C. Spagnola, Mark D. Weigel, Michael D. Delmore, Samuel Kidane, Thomas P. Klun
  • Publication number: 20150114457
    Abstract: This disclosure generally relates to films capable of use in a flexible photovoltaic solar module, rolls of films capable of use in a flexible photovoltaic solar module, processes of making the films and rolls of films, to flexible photovoltaic solar modules including such films, and to methods of making flexible solar modules. One exemplary process involves providing at least two discrete segments of a multilayer barrier film and placing a segment of protective layer adjacent to two of the adjacent discrete segments of multilayer barrier film such that the first and second terminal edges of the segment of protective layer span the gap between the discrete segments of barrier film to form a continuous film.
    Type: Application
    Filed: August 1, 2012
    Publication date: April 30, 2015
    Applicant: 3M Innovative Properties Company
    Inventors: Mark D. Weigel, Michael D. Delmore, Dennis M. Brunner, Andrew T. Ruff
  • Publication number: 20140290736
    Abstract: The present application is directed to an assembly comprising an electronic device and a multilayer film. The multilayer film comprises a barrier stack adjacent the electronic device, and a weatherable sheet adjacent the barrier stack opposite the electronic device. The weatherable sheet is bonded to the electronic device.
    Type: Application
    Filed: July 24, 2012
    Publication date: October 2, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Mark D. Weigel, Mark A. Roehrig, Michael D. Delmore, Andrew T. Ruff
  • Publication number: 20140283910
    Abstract: The present application is directed to an assembly comprising an electronic device, and a multilayer film. The multilayer film comprises a substrate adjacent the electronic device, a barrier stack adjacent the substrate opposite the electronic device, and a weatherable sheet adjacent the barrier stack opposite the substrate. The multilayer film is transparent and flexible and the barrier stack and the substrate are insulated from the environment.
    Type: Application
    Filed: July 30, 2012
    Publication date: September 25, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Mark D. Weigel, Mark A. Roehrig, Samuel Kidane, Andrew T. Ruff, Michael D. Delmore
  • Publication number: 20140246090
    Abstract: The present application is directed to a method of reducing delamination in an assembly. The method comprises providing an assembly and limiting visible light exposure to parts of the assembly to maintain a peel force of 20 grams/inch or greater where the light is limited. The assembly comprises an electronic device, a substrate having a first surface and a second surface opposite the first surface, wherein the second surface of the substrate is disposed on the electronic device, a barrier stack disposed on the first surface of the substrate, and a weatherable sheet adjacent the barrier film opposite the substrate. The assembly is transmissive to visible and infrared light.
    Type: Application
    Filed: July 24, 2012
    Publication date: September 4, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Mark D. Weigel, Andrew T. Ruff, Tracie J. Berniard
  • Patent number: 7851054
    Abstract: Multilayer optical films having one or more reflection bands are provided. The films include alternating polymeric layers configured to selectively reflect and transmit visible light at a design angle of incidence, where the selective reflection includes first and second visible reflection bands. At least one of the first and second visible reflection bands is a first-order reflection.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: December 14, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Michael F. Weber, Timothy J. Nevitt, Andrew J. Ouderkirk, John A. Wheatley, James M. Jonza, Yao Qi Liu, Andrew T. Ruff, Jeffery A. Boettcher
  • Publication number: 20100254002
    Abstract: A stretcher for substantially uniaxially orienting a film includes a plurality of gripping members to hold opposing edge portions of the film, paths along which the gripping members travel to stretch the film in a stretching region, and a drive mechanism to convey the film and gripping members along a machine direction. At least a portion of the paths in the stretching region define diverging, curvilinear courses disposed in-plane. The paths are configured such that during the stretching an extent of uniaxial character, U, is between zero and unity and a minimum value of an extent of uniaxial character, U, is at least 0.70 over a final portion of the stretching after achieving a TDDR of 2.5. U is defined as U=(1/MDDR?1)/(TDDR1/2?1), wherein TDDR is greater than 4 at an end of the stretching region.
    Type: Application
    Filed: June 21, 2010
    Publication date: October 7, 2010
    Inventors: William Ward Merrill, Jeffery N. Jackson, Andrew T. Ruff, John A. Wheatley, Dennis L. Krueger
  • Patent number: 7744987
    Abstract: Multilayer films are provided that exhibit a colored appearance when viewed at an oblique angle as a result of one or more reflection bands in the visible region of the spectrum. The films however provide no substantial reflection bands in either the visible or near infrared regions for light normally incident on the film. The films can be made to shift from clear at normal incidence to an arbitrary designed color at an oblique angle without necessarily becoming cyan.
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: June 29, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Timothy J. Hebrink, Laurence R. Gilbert, James M. Jonza, Andrew T. Ruff
  • Patent number: 7740470
    Abstract: A stretcher for substantially uniaxially orienting a film includes a plurality of gripping members to hold opposing edge portions of the film, paths along which the gripping members travel to stretch the film in a stretching region, and a drive mechanism to convey the film and gripping members along a machine direction. At least a portion of the paths in the stretching region define diverging, curvilinear courses disposed in-plane. The paths are configured such that during the stretching an extent of uniaxial character, U, is between zero and unity and a minimum value of an extent of uniaxial character, U, is at least 0.70 over a final portion of the stretching after achieving a TDDR of 2.5. U is defined as U=(1/MDDR?1)/(TDDR1/2?1), wherein TDDR is greater than 4 at an end of the stretching region.
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: June 22, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: William Ward Merrill, Jeffery N. Jackson, Andrew T. Ruff, John A. Wheatley, Dennis L. Krueger
  • Publication number: 20090323180
    Abstract: Multilayer optical films having one or more reflection bands are provided. The films include alternating polymeric layers configured to selectively reflect and transmit visible light at a design angle of incidence, where the selective reflection includes first and second visible reflection bands. At least one of the first and second visible reflection bands is a first-order reflection.
    Type: Application
    Filed: April 30, 2009
    Publication date: December 31, 2009
    Inventors: Michael F. Weber, Timothy J. Nevitt, Andrew J. Ouderkirk, John A. Wheatley, James M. Jonza, Yao Qi Liu, Andrew T. Ruff, Jeffrey A. Boettcher
  • Patent number: 7526164
    Abstract: A polarizer is formed with an arrangement of polymer fibers substantially parallel within a polymer matrix. The polymer fibers are formed of at least first and second polymer materials. At least one of the polymer matrix and the first and second polymer materials is birefringent, and provides a birefringent interface with the adjacent material. Light is reflected and/or scattered at the birefringent interfaces with sensitivity to the polarization of the light. In some embodiments, the polymer fibers are formed as composite fibers, having a plurality of scattering polymer fibers disposed within a filler to form the composite fiber. In other embodiments, the polymer fiber is a multilayered polymer fiber. The polymer fibers may be arranged within the polymer matrix as part of a fiber weave.
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: April 28, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: Andrew J. Ouderkirk, Richard C. Allen, Patrick R. Fleming, Diane North, Andrew T. Ruff, Kristin L. Thunhorst
  • Publication number: 20080165419
    Abstract: A polarizer is formed with an arrangement of polymer fibers substantially parallel within a polymer matrix. The polymer fibers are formed of at least first and second polymer materials. At least one of the polymer matrix and the first and second polymer materials is birefringent, and provides a birefringent interface with the adjacent material. Light is reflected and/or scattered at the birefringent interfaces with sensitivity to the polarization of the light. In some embodiments, the polymer fibers are formed as composite fibers, having a plurality of scattering polymer fibers disposed within a filler to form the composite fiber. In other embodiments, the polymer fiber is a multilayered polymer fiber. The polymer fibers may be arranged within the polymer matrix as part of a fiber weave.
    Type: Application
    Filed: March 18, 2008
    Publication date: July 10, 2008
    Inventors: Andrew J. Ouderkirk, Richard C. Allen, Patrick R. Fleming, Diane North, Andrew T. Ruff, Kristin L. Thunhorst
  • Patent number: 7356229
    Abstract: A polarizer is formed with an arrangement of polymer fibers substantially parallel within a polymer matrix. The polymer fibers are formed of at least first and second polymer materials. At least one of the polymer matrix and the first and second polymer materials is birefringent, and provides a birefringent interface with the adjacent material. Light is reflected and/or scattered at the birefringent interfaces with sensitivity to the polarization of the light. In some embodiments, the polymer fibers are formed as composite fibers, having a plurality of scattering polymer fibers disposed within a filler to form the composite fiber. In other embodiments, the polymer fiber is a multilayered polymer fiber. The polymer fibers may be arranged within the polymer matrix as part of a fiber weave.
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: April 8, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Andrew J. Ouderkirk, Richard C Allen, Patrick R. Fleming, Diane North, Andrew T. Ruff, Kristin L. Thunhorst
  • Patent number: 7316558
    Abstract: Stretched polymeric films can be used in a variety of applications, including optical applications. The stretching conditions and shape of the stretching tracks in a stretching apparatus can determine or influence film properties. Methods and stretching apparatuses can include adjustable or zone-defined stretching regions.
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: January 8, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: William W. Merrill, Jeffery N. Jackson, Andrew T. Ruff, Desiree L. Thompson, John A. Wheatley, Jeffrey D. Amundson, Curtis A. Harvey
  • Patent number: 7256936
    Abstract: Multilayer films are provided that exhibit a colored appearance when viewed at an oblique angle as a result of one or more reflection bands in the visible region of the spectrum. The films however provide no substantial reflection bands in either the visible or near infrared regions for light normally incident on the film. The films can be made to shift from clear at normal incidence to an arbitrary designed color at an oblique angle without necessarily becoming cyan.
    Type: Grant
    Filed: June 16, 2006
    Date of Patent: August 14, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Timothy J. Hebrink, Laurence R. Gilbert, James M. Jonza, Andrew T. Ruff
  • Patent number: 7236296
    Abstract: A multilayer film article is disclosed. The film includes an infrared light reflecting multilayer film having alternating layers of a first polymer type and a second polymer type and an infrared light absorbing or reflecting layer adjacent the multilayer film. The film includes a multilayer stack composed of alternating optical layers of first and second diverse polymers A, B. The optical layers when counted from one end of a first effective optical packet form a plurality of unit cells each having six optical layers arranged in relative optical thicknesses in a first cyclic permutation of 7A1B1A7B1A1B. At normal incidence the first effective optical packet provides a reflection band at infrared wavelengths and substantially transmits light at visible wavelengths.
    Type: Grant
    Filed: May 20, 2005
    Date of Patent: June 26, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Yaoqi J. Liu, Jerry A. Sievers, Andrew T. Ruff
  • Patent number: 7229271
    Abstract: A process for stretching films is described. The process preferably stretches films in a uniaxial fashion. Preferably, optical films are stretched including multilayer optical films. Other aspects of the invention include a roll of stretched film and an apparatus for stretching films.
    Type: Grant
    Filed: September 3, 2004
    Date of Patent: June 12, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: William Ward Merrill, Jeffery N. Jackson, Andrew T. Ruff, John A. Wheatley, Dennis L. Krueger