Patents by Inventor Volkmar Offermann

Volkmar Offermann 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).

  • Patent number: 8841585
    Abstract: An electrically heatable, transparent article and a method for fabricating such article are described. The article comprises an electrically conductive transparent coating and a transparent substrate. The coating is in contact with electrical bus bars and delimits a localized region, which contains a coating-free transparent region.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: September 23, 2014
    Assignee: Saint-Gobain Glass France
    Inventors: Volkmar Offermann, Alwin Timmermann
  • Publication number: 20130186875
    Abstract: A transparent pane with a conductive coating extending at least over a part of the transparent pane surface, in particular over a visual field of the transparent pane is described. The conductive coating is electrically connected to at least two strip-shaped bus bars such that after application of a supply voltage, a current flows over a heating field formed by the conductive coating. The conductive coating has an electrical resistance such that upon application of a supply voltage in the range from more than 100 volts to 400 volts, a heating output from the heating field is in the range from 300 watt/m2 to 1000 watt/m2. The at least two strip-shaped bus bars have a maximum width of less than 5 mm and are dimensioned such that a maximum electrical power loss per unit of length is 10 watt/m. Moreover, the at least two strip-shaped bus bars have a specific resistivity ranging from 2 ?ohm·cm to 4 ?ohm·cm.
    Type: Application
    Filed: July 6, 2011
    Publication date: July 25, 2013
    Inventors: Susanne Lisinski, Martin Melcher, Volkmar Offermann, Andreas Schlarb
  • Patent number: 8451541
    Abstract: Interfering double images that occur with curved windshields made from laminated glass during night driving in transmission and with head-up displays in reflection can be reduced by a wedge-shaped thermoplastic intermediate film. The wedge-angle profile required for compensation of double images is determined locally as a function of pane shape and installation situation. If the vehicle has a head-up display system, the wedge-angle progression can be determined in the HUD field such that double images are prevented there in reflection. However, outside the HUD field, a wedge-angle progression that compensates double images in transmission is selected. The specifically adapted wedge-angle profile enables better compensation of double images than is possible with a film with a constant wedge angle.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: May 28, 2013
    Assignee: Saint-Gobain Glass France
    Inventors: Michael Labrot, Volkmar Offermann, Jean-Edouard De Salins
  • Publication number: 20130092676
    Abstract: A composite pane having an electrically heatable coating is described. The composite pane comprises: at least two individual panes; an intermediate layer, which connects the individual panes to one another; at least one transparent, electrically conductive coating on at least one side of at least one of the at least two individual panes, the at least one side faces the intermediate layer; and at least two bus bars, which are connected to the at least one transparent, electrically conductive coating, wherein a first bus bar is electrically connected to a first feed line provided for connection to one pole of a voltage source and a second bus bar is electrically connected to a second feed line provided for connection to the second pole of the voltage source.
    Type: Application
    Filed: July 6, 2011
    Publication date: April 18, 2013
    Inventors: Volkmar Offermann, Andreas Schlarb, Martin Melcher, Susanne Lisinski
  • Publication number: 20120103961
    Abstract: An electrically heatable, transparent article and a method for fabricating such article are described. The article comprises an electrically conductive transparent coating and a transparent substrate. The coating is in contact with electrical bus bars and delimits a localized region, which contains a coating-free transparent region.
    Type: Application
    Filed: June 23, 2010
    Publication date: May 3, 2012
    Inventors: Volkmar Offermann, Alwin Timmermann
  • Publication number: 20120025559
    Abstract: the present invention relates to a transparent laminated glass comprising a transparent outer pane (1) with a thickness of 1.45 mm to 1.8 mm, at least one polymer layer (2) with a thickness of 0.5 mm to 4.0 mm and a transparent inner pane (3) with a thickness of 1.0 mm to 1.4 mm, wherein the at least one polymer layer contains ethylene vinyl acetates, plasticized polyvinyl butyrals, polyurethanes, polycarbonates, polyethylene terephthalates, and/or ionomers as wet as copolymers and/or combinations thereof, and the ratio of the thickness of the transparent outer pane (1) to the sum of the thickness of the transparent outer pane (1) and the transparent inner pane (3) is 0.509 to 0.643.
    Type: Application
    Filed: April 19, 2010
    Publication date: February 2, 2012
    Inventors: Volkmar Offermann, Benno Dunkmann
  • Publication number: 20110199674
    Abstract: A laminate adapted to filter out infrared radiation, yet transparent to visible light. The laminate further comprises an optical window that is permeable to infrared radiation. A method of manufacturing the laminate is also described.
    Type: Application
    Filed: January 18, 2010
    Publication date: August 18, 2011
    Inventors: Martin Melcher, Stefan Droste, Dirk Wohlfeil, Florian Manz, Volkmar Offermann, Uwe Van Der Meulen
  • Publication number: 20100314900
    Abstract: Interfering double images that occur with curved windshields made from laminated glass during night driving in transmission and with head-up displays in reflection can be reduced by a wedge-shaped thermoplastic intermediate film. The wedge-angle profile required for compensation of double images is determined locally as a function of pane shape and installation situation. If the vehicle has a head-up display system, the wedge-angle progression can be determined in the HUD field such that double images are prevented there in reflection. However, outside the HUD field, a wedge-angle progression that compensates double images in transmission is selected. The specifically adapted wedge-angle profile enables better compensation of double images than is possible with a film with a constant wedge angle.
    Type: Application
    Filed: July 18, 2008
    Publication date: December 16, 2010
    Applicant: Saint-Gobain Glass France
    Inventors: Michael Labrot, Volkmar Offermann, Jean-Edouard De Salins
  • Patent number: 7794125
    Abstract: A flat luminous element with at least one substrate and one coating, applied onto the surface of the substrate and emitting light, and including plural luminous elements configured to be separately electrically connected next to one another, in different parts of the surface, so as to obtain different luminous effects. At least one separate luminous element is provided with an enhanced luminous power relative to the luminosity of the surface and with a light emission that is directed.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: September 14, 2010
    Assignee: Saint-Gobain Glass France
    Inventors: Volkmar Offermann, Dieter Linnhofer, Helmut Maeuser
  • Patent number: 7414357
    Abstract: A window (1) with an opaque coating (2) comprising a surface region (3) which has opaque surface portions (5) and which is perforated by surface portions (4) allowing light to pass through and distributed over the surface. At least one flat electroluminescent light element (EL) with several layers, including a transparent electrode (8), is placed in at least some of the opaque surface portions (5) of the surface region (3), which element, after applying an electrical supply voltage to the side of the transparent electrode (8), radiates light through at least one of the faces of the window (1).
    Type: Grant
    Filed: May 22, 2002
    Date of Patent: August 19, 2008
    Assignee: Saint-Gobain Glass France
    Inventors: Bernhard Reul, Volkmar Offermann, Horst Mercks, Walter Goerenz, Dieter Linnhoefer
  • Publication number: 20080137355
    Abstract: A flat luminous element with at least one substrate and one coating, applied onto the surface of the substrate and emitting light, and including plural luminous elements configured to be separately electrically connected next to one another, in different parts of the surface, so as to obtain different luminous effects. At least one separate luminous element is provided with an enhanced luminous power relative to the luminosity of the surface and with a light emission that is directed.
    Type: Application
    Filed: July 30, 2004
    Publication date: June 12, 2008
    Applicant: SAINTGOBAIN GLASS FRANCE
    Inventors: Volkmar Offermann, Dieter Linnhofer, Helmut Mauser
  • Patent number: 7135219
    Abstract: In a composite pane having a film laminate which adhesively connects two rigid panes to one another to form a pane assembly and comprises at least one colored adhesive film and at least one uncolored adhesive film which can be fused on during production of the pane assembly, according to the invention, at least one intermediate layer is provided between the two differently colored fused-on adhesive films and results in a uniform flattening of the mutually facing surfaces of the two adhesive films while being fused on. This results in the finished product being homogeneously colored when being looked through.
    Type: Grant
    Filed: May 7, 2003
    Date of Patent: November 14, 2006
    Assignee: Saint-Gobain Glass France
    Inventors: Volkmar Offermann, Walter Goerenz, Ludwig Linden, Michael Steffens, Heinz Schilde
  • Patent number: 7056586
    Abstract: The invention relates to a process for manufacturing a laminated glazing unit including of at least two transparent panes, one of which is provided on its surface facing the inside of the composite with a corrosion-protected transparent surface coating. The panes are joined together by layers of adhesive. The transparent surface coating is removed along at least one edge of the coated pane in a region between 0.1 mm and 5 mm from the peripheral edge of the pane in the direction of the main surface of the pane, and a protective layer impermeable to the diffusion of water vapor, covering the external boundary edge of the transparent surface coating, is applied along that edge of the coated pane from which the coating has been removed. The invention also relates to a laminated glazing unit with a corrosion-protected transparent surface coating.
    Type: Grant
    Filed: May 9, 2001
    Date of Patent: June 6, 2006
    Assignee: Saint-Gobain Glass France
    Inventors: Walter Goerenz, Ullrich Billert, Dieter Linnhöfer, Walter Nievelstein, Rolf Van Der Meulen, Volkmar Offermann
  • Publication number: 20050233136
    Abstract: In a composite pane having a film laminate which adhesively connects two rigid panes to one another to form a pane assembly and comprises at least one coloured adhesive film and at least one uncoloured adhesive film which can be fused on during production of the pane assembly, according to the invention, at least one intermediate layer is provided between the two differently coloured fused-on adhesive films and results in a uniform flattening of the mutually facing surfaces of the two adhesive films while being fused on. This results in the finished product being homogeneously coloured when being looked through.
    Type: Application
    Filed: May 7, 2003
    Publication date: October 20, 2005
    Applicant: SAINT-GOBAIN GLASS FRANCE
    Inventors: Volkmar Offermann, Walter Goerenz, Lugwig Linden, Michael Steffens, Heinz Schilde
  • Publication number: 20040237430
    Abstract: A window with an opaque coating including a surface region that has opaque surface portions and that is perforated by surface portions allowing light to pass through and be distributed over the surface. At least one flat electroluminescent light element with plural layers, including a transparent electrode, is placed in at least some of the opaque surface portions of the surface region, which element, after applying an electrical supply voltage to the side of the transparent electrode, radiates light through at least one of the faces of the window.
    Type: Application
    Filed: July 13, 2004
    Publication date: December 2, 2004
    Inventors: Bernhard Reul, Volkmar Offermann, Horst Mercks, Walter Goerenz, Dieter Linnhofer
  • Patent number: 6432522
    Abstract: An optically transparent glazing measures about 3 to 5 mm in total thickness, and has an interlayer film, the interlayer film comprises at least two polymeric film layers: a core film layer having a modulus of at least 25,000 psi (173 MPa) and a surface film layer having a maximum modulus of 15,000 (104 MPa) at 50 to 10,000 Hz and 20° C.; and the glazing is characterized by an acoustical barrier insulating capacity at least equivalent to that of a 3.85 mm thick monolithic pane of glass. The glazing also has an Articulation Index value of less than 64.2% at 50 to 10,000 Hz, a sharpness value of less than 150 at 50 to 10,000 Hz, a penetration resistance of at least 9 meters in test method ECE R43, A6 4.2, and a maximum haze of 4%. The interlayer film has a bending stiffness of at least 0.01 Pa*m3. The surface film layer has a maximum tan delta of 0.6 at 50 to 10,000 Hz and 20° C. The interlayer film preferably comprises one core film layer of between 1.0 and 1.
    Type: Grant
    Filed: June 9, 1999
    Date of Patent: August 13, 2002
    Assignees: Saint-Gobain Vitrage, Saint-Gobain Performance Plastics Corp.
    Inventors: Michael Friedman, Deirdre C. McDonnell-Lee, Marc Rehfeld, Jean-Louis Bravet, Jean-Philippe Boure, Volkmar Offermann
  • Patent number: 6364397
    Abstract: An attachment device for attaching a window in a motor vehicle, the window having at least one sheet of a transparent material and being able, in one position, to close off an opening made in the bodywork of the vehicle and, in one or more other positions, at least partially open the opening. In the closing-off position, the window is fastened to the bodywork of the vehicle but, after an accident, the window-bodywork fastening is explosively weakened.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: April 2, 2002
    Assignee: Saint-Gobain Glass France
    Inventors: Frederic Bordeaux, Volkmar Offermann
  • Publication number: 20020003019
    Abstract: The invention relates to a process for manufacturing a laminated glazing unit including of at least two transparent panes, one of which is provided on its surface facing the inside of the composite with a corrosion-protected transparent surface coating. The panes are joined together by layers of adhesive. The transparent surface coating is removed along at least one edge of the coated pane in a region between 0.1 mm and 5 mm from the peripheral edge of the pane in the direction of the main surface of the pane, and a protective layer impermeable to the diffusion of water vapor, covering the external boundary edge of the transparent surface coating, is applied along that edge of the coated pane from which the coating has been removed. The invention also relates to a laminated glazing unit with a corrosion-protected transparent surface coating.
    Type: Application
    Filed: May 9, 2001
    Publication date: January 10, 2002
    Inventors: Walter Goerenz, Ullrich Billert, Dieter Linnhofer, Walter Nievelstein, Rolf Van Der Meulen, Volkmar Offermann