Patents by Inventor Karl-Josef Ollfisch
Karl-Josef Ollfisch 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: 10662105Abstract: A device for heating objects and a method that has recourse to the device, particularly for heating and/or bending one or more glass panes positioned one on top of the other, covering each other. The device includes a furnace line, plural supports, particularly transport molds that transport and/or bend the objects, the objects being placed on the supports positioned on transport carriages, a drive device that progresses the transport carriages through the furnace line and plural heating elements provided above the objects in the furnace line. In the device the heating elements are positioned on the whole above the entire furnace line and the heating elements can be operated and regulated so as to form heating zones suited to dimensions of the objects.Type: GrantFiled: May 21, 2007Date of Patent: May 26, 2020Assignee: SAINT-GOBAIN GLASS FRANCEInventors: Michael Balduin, Benno Dunkmann, Michael Labrot, Karl-Josef Ollfisch
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Patent number: 9771297Abstract: A method and device for bending superposed sheets of glass. The sheets are picked up by a top form furnished with a suction creating an upward airflow blowing over the rim of the sheets, the suction being sufficient to lift and hold the superposed sheets against the top form, then the sheets are pressed between the top form and a full surface solid concave bottom form furnished with openings, the pressing beginning conducted while the suction is not yet finished or is finishing, then the superposed sheets are formed, by suction of the main face of the bottom sheet through the openings of the bottom concave mold, the forming by suction beginning while the pressing is not yet finished, and then the sheets are cooled. Windshields free of optical defects may thus be produced.Type: GrantFiled: April 30, 2014Date of Patent: September 26, 2017Assignee: SAINT-GOBAIN GLASS FRANCEInventors: Michael Balduin, Michael Labrot, Karl-Josef Ollfisch, Herbert Radermacher, Guenther Schall
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Patent number: 8964279Abstract: An electrode is produced on a rigid or flexible support substrate, including a grid network of very fine electrically-conductive lines with nodes and links, to produce a diffraction pattern, as much as possible in an arc shape, in the light transmitted and that results in an absence of high-level optical impacts. The grid network may in addition be produced without preferential direction with a number of three lines joining up at each node and/or with conductive sections extending in the shape of an arc or in wave form between the nodes.Type: GrantFiled: July 25, 2007Date of Patent: February 24, 2015Assignee: Saint-Gobain Glass FranceInventors: Martin Melcher, Michael Labrot, Benno Dunkmann, Philippe Letocart, Bernhard Reul, Karl-Josef Ollfisch, Marc Maurer
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Publication number: 20140230493Abstract: A method and device for bending superposed sheets of glass. The sheets are picked up by a top form furnished with a suction creating an upward airflow blowing over the rim of the sheets, the suction being sufficient to lift and hold the superposed sheets against the top form, then the sheets are pressed between the top form and a full surface solid concave bottom form furnished with openings, the pressing beginning conducted while the suction is not yet finished or is finishing, then the superposed sheets are formed, by suction of the main face of the bottom sheet through the openings of the bottom concave mold, the forming by suction beginning while the pressing is not yet finished, and then the sheets are cooled. Windshields free of optical defects may thus be produced.Type: ApplicationFiled: April 30, 2014Publication date: August 21, 2014Applicant: Saint-Gobain Glass FranceInventors: Michael BALDUIN, Michael LABROT, Karl-Josef OLLFISCH, Herbert RADERMACHER, Guenther SCHALL
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Patent number: 8746011Abstract: A method and device for bending superposed sheets of glass. The sheets are picked up by a top form furnished with a suction creating an upward airflow blowing over the rim of the sheets, the suction being sufficient to lift and hold the superposed sheets against the top form, then the sheets are pressed between the top form and a full surface solid concave bottom form furnished with openings, the pressing beginning conducted while the suction is not yet finished or is finishing, then the superposed sheets are formed, by suction of the main face of the bottom sheet through the openings of the bottom concave mold, the forming by suction beginning while the pressing is not yet finished, and then the sheets are cooled. Windshields free of optical defects may thus be produced.Type: GrantFiled: November 10, 2011Date of Patent: June 10, 2014Assignee: Saint-Gobain Glass FranceInventors: Michael Balduin, Michael Labrot, Karl-Josef Ollfisch, Herbert Radermacher, Guenther Schall
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Patent number: 8421011Abstract: A glass pane (1) has an inner side (6) and an outer side (5) and a detector (10) located on the inner side (6) for electromagnetic radiation which, coming from the outer side (5), passes through the glass pane (1) and can be detected by means of the detector. The glass pane (1) is a composite pane, in particular a glass pane of composite safety glass of a motor vehicle, with an inner pane (3) and an outer pane (2), which are joined to each other with the aid of a film (4) arranged between the inner pane (3) and the outer pane (2). In order also to obtain a sufficient intensity of the electromagnetic radiation passing through the glass pane (1) and detectable by the detector (10) in glass panes with a small transmission coefficient, it is proposed that the beam path of the electromagnetic radiation leading to the detector (10) penetrate only the material of the outer pane (2) and pass through the plane of the inner pane (3) in the region of a continuous hole (7).Type: GrantFiled: September 4, 2008Date of Patent: April 16, 2013Assignee: Saint-Gobain Glass FranceInventors: Martin Melcher, Jan Gruenert, Karl-Josef Ollfisch, Marc Maurer
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Patent number: 8327667Abstract: A device and method for bending a glazing unit or plural glazing units positioned one on top of the other, with a first train of carriages, bearing transport supports and running between a loading zone in which at least one glazing unit is deposited on a transport support of a carriage and a transfer zone, a furnace section heating the glazing units to their bending temperature in their path towards the transfer zone, and a second train of carriages running between the transfer zone and a final cooling section with an unloading station, which is equipped with transport supports that differ from the transport supports of the first train of carriages.Type: GrantFiled: January 11, 2006Date of Patent: December 11, 2012Assignee: Saint-Gobain Glass FranceInventors: Michael Balduin, Michael Labrot, Hubert Havenith, Karl-Josef Ollfisch, Herbert Radermacher, Guenther Schall
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Patent number: 8146387Abstract: A process and system for bending glass sheets heated to their softening point. The glass sheets are laid on a concave bending frame and prebent by gravity. The prebent glass sheets are transferred to a transfer former with a concave forming surface, the transfer former being moved up through the concave bending frame, the perimeter of which is larger, and thus picking up the glass sheets. The transfer former is positioned so that in vertical projection it overlies a final bending former in the form of a frame with a concave forming surface. The transfer former is moved up through the larger-diameter final bending former, the glass sheets being laid on the final bending former. The glass sheets are bent into their final shape, and at the end of the bending operation, the glass sheets in their final shape are transferred from the final bending former to a transport system and cooled.Type: GrantFiled: March 26, 2004Date of Patent: April 3, 2012Assignee: Saint-Gobain Glass FranceInventors: Karl-Josef Ollfisch, Thomas Meissen, Herbert Radermacher, Michael Labrot
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Publication number: 20120055197Abstract: A method and device for bending superposed sheets of glass. The sheets are picked up by a top form furnished with a suction creating an upward airflow blowing over the rim of the sheets, the suction being sufficient to lift and hold the superposed sheets against the top form, then the sheets are pressed between the top form and a full surface solid concave bottom form furnished with openings, the pressing beginning conducted while the suction is not yet finished or is finishing, then the superposed sheets are formed, by suction of the main face of the bottom sheet through the openings of the bottom concave mold, the forming by suction beginning while the pressing is not yet finished, and then the sheets are cooled. Windshields free of optical defects may thus be produced.Type: ApplicationFiled: November 10, 2011Publication date: March 8, 2012Applicant: SAINT-GOBAIN GLASS FRANCEInventors: Michael BALDUIN, Michael LABROT, Karl-Josef OLLFISCH, Herbert RADERMACHER, Guenther SCHALL
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Patent number: 8109117Abstract: A method and device for bending superposed sheets of glass. The sheets are picked up by a top form furnished with a suction creating an upward airflow blowing over the rim of the sheets, the suction being sufficient to lift and hold the superposed sheets against the top form, then the sheets are pressed between the top form and a full surface solid concave bottom form furnished with openings, the pressing beginning conducted while the suction is not yet finished or is finishing, then the superposed sheets are formed, by suction of the main face of the bottom sheet through the openings of the bottom concave mold, the forming by suction beginning while the pressing is not yet finished, and then the sheets are cooled. Windshields free of optical defects may thus be produced.Type: GrantFiled: December 15, 2005Date of Patent: February 7, 2012Assignee: Saint-Gobain Glass FranceInventors: Michael Balduin, Michael Labrot, Karl-Josef Ollfisch, Herbert Radermacher, Guenther Schall
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Publication number: 20110027515Abstract: A glass pane (1) has an inner side (6) and an outer side (5) and a detector (10) located on the inner side (6) for electromagnetic radiation which, coming from the outer side (5), passes through the glass pane (1) and can be detected by means of the detector. The glass pane (1) is a composite pane, in particular a glass pane of composite safety glass of a motor vehicle, with an inner pane (3) and an outer pane (2), which are joined to each other with the aid of a film (4) arranged between the inner pane (3) and the outer pane (2). In order also to obtain a sufficient intensity of the electromagnetic radiation passing through the glass pane (1) and detectable by the detector (10) in glass panes with a small transmission coefficient, it is proposed that the beam path of the electromagnetic radiation leading to the detector (10) penetrate only the material of the outer pane (2) and pass through the plane of the inner pane (3) in the region of a continuous hole (7).Type: ApplicationFiled: September 4, 2008Publication date: February 3, 2011Applicant: SAINT-GOBAIN GLASS FRANCEInventors: Martin Melcher, Jan Gruenert, Karl-Josef Ollfisch, Marc Maurer
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Publication number: 20100200286Abstract: An electrode is produced on a rigid or flexible support substrate, including a grid network of very fine electrically-conductive lines with nodes and links, to produce a diffraction pattern, as much as possible in an arc shape, in the light transmitted and that results in an absence of high-level optical impacts. The grid network may in addition be produced without preferential direction with a number of three lines joining up at each node and/or with conductive sections extending in the shape of an arc or in wave form between the nodes.Type: ApplicationFiled: July 25, 2007Publication date: August 12, 2010Applicant: SAINT-GOBAIN GLASS FRANCEInventors: Martin Melcher, Michael Labrot, Benno Dunkmann, Philippe Letocart, Bernhard Reul, Karl-Josef Ollfisch, Marc Maurer
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Publication number: 20090197215Abstract: A device for heating objects and a method that has recourse to the device, particularly for heating and/or bending one or more glass panes positioned one on top of the other, covering each other. The device includes a furnace line, plural supports, particularly transport molds that transport and/or bend the objects, the objects being placed on the supports positioned on transport carriages, a drive device that progresses the transport carriages through the furnace line and plural heating elements provided above the objects in the furnace line. In the device the heating elements are positioned on the whole above the entire furnace line and the heating elements can be operated and regulated so as to form heating zones suited to dimensions of the objects.Type: ApplicationFiled: May 21, 2007Publication date: August 6, 2009Applicant: SAINT-GOBAIN GLASS FRANCEInventors: Michael Balduin, Benno Dunkmann, Michael Labrot, Karl-Josef Ollfisch
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Publication number: 20080190143Abstract: A device and method for bending a glazing unit or plural glazing units positioned one on top of the other, with a first train of carriages, bearing transport supports and running between a loading zone in which at least one glazing unit is deposited on a transport support of a carriage and a transfer zone, a furnace section heating the glazing units to their bending temperature in their path towards the transfer zone, and a second train of carriages running between the transfer zone and a final cooling section with an unloading station, which is equipped with transport supports that differ from the transport supports of the first train of carriages.Type: ApplicationFiled: January 11, 2006Publication date: August 14, 2008Applicant: SAINT-GOBAIN GLASS FRANCEInventors: Michael Balduin, Michael Labrot, Hubert Havenith, Karl-Josef Ollfisch, Herbert Radermacher, Gunther Schall
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Publication number: 20080134722Abstract: The invention relates to a method and device for bending superposed sheets of glass, comprising the sheets being picked up by a top form furnished with suction means creating an upward airflow blowing over the rim of the sheets, said suction being sufficient to lift and hold the superposed sheets against said top form, then the pressing of the sheets between the top form and a full surface solid concave bottom form furnished with openings, said pressing beginning while the suction of the preceding step is not yet finished or is finishing, then the forming of the superposed sheets, by suction of the main face of the bottom sheet through the openings of the bottom concave mold, said forming by suction beginning while the pressing is not yet finished, then the cooling of the sheets. Windshields free of optical defects may thus be produced.Type: ApplicationFiled: December 15, 2005Publication date: June 12, 2008Applicant: Saint-Gobain Glass FranceInventors: Michael Balduin, Michael Labrot, Karl-Josef Ollfisch, Herbert Radermacher, Gunther Schall
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Publication number: 20070039354Abstract: A process and system for bending glass sheets heated to their softening point. The glass sheets are laid on a concave bending frame and prebent by gravity. The prebent glass sheets are transferred to a transfer former with a concave forming surface, the transfer former being moved up through the concave bending frame, the perimeter of which is larger, and thus picking up the glass sheets. The transfer former is positioned so that in vertical projection it overlies a final bending former in the form of a frame with a concave forming surface. The transfer former is moved up through the larger-diameter final bending former, the glass sheets being laid on the final bending former. The glass sheets are bent into their final shape, and at the end of the bending operation, the glass sheets in their final shape are transferred from the final bending former to a transport system and cooled.Type: ApplicationFiled: March 26, 2004Publication date: February 22, 2007Inventors: Karl-Josef Ollfisch, Thomas Meissen, Herbert Radermarcher, Michael Labrot
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Patent number: 6574992Abstract: During a process for bending and quenching a window pane, the latter is bent to the desired shape using a forming frame. Next, by means of this same forming frame, the entire surface of both sides of the bent window pane is rapidly cooled, in a quenching station which follows the bending station, by blowing cold air using blowing boxes provided with blowing nozzles. While the entire surface is being rapidly cooled, the edge regions of the window pane which rest on the forming frame are subjected to a blast of additional cold air by the suitable supply of compressed air to the openings passing through the forming frame.Type: GrantFiled: November 20, 2000Date of Patent: June 10, 2003Assignee: Saint-Gobain Glass FranceInventors: Hans-Werner Kuster, Werner Diederen, Knut Dahlhoff, Karl-Josef Ollfisch, Wilfried Korsten
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Patent number: 6318125Abstract: A process for shaping glass sheets with a surface-shaping mould, against which the glass sheets are pressed using a pressure drop produced by sucking out the air from the space lying between the moulding face and that face of the glass sheet on the opposite side from the glass sheet, in which the pressure drop is a maximum at the edge of the glass sheet and decreases towards the center of the glass sheet, because of fact that air is introduced via air-inlet apertures opening into the moulding face, the air is again extracted by subjecting suction apertures made in the moulding face inside the region covered by the respective glass sheet to a vacuum. Furthermore, pressure between the glass sheet and the moulding face also in the region where the air is introduced is set to a value at most equal to the pressure beyond the glass sheet, in order to avoid any formation of bulging. A shaping mould suitable in particular for implementing this process is also described.Type: GrantFiled: November 27, 2000Date of Patent: November 20, 2001Assignee: Saint-Gobain VitrageInventors: Werner Diederen, Karl-Josef Ollfisch, Klaus-Peter Heining, Knut Dahlhoff, Wilfried Korsten, Herbert Radermacher
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Patent number: 5974836Abstract: A device used for the bending of plate glass sections (3) includes an oven (1), a bending chamber (6), an upper bending mold installed in the bending chamber (6) in such a manner as to be able to be raised and lowered, a duct producing a flow of hot gas in order to raise the plate glass sections (3) against the upper bending mold, a lower bending mold in the form of a frame that works together with the upper bending mold to ensure bending by compression of the plate glass that is held by the flow of hot gas against the upper bending mold, as well as a movable transport frame (20) which is used to pick up the bent plate glass from the upper bending mold and to transport it to a cooling station located downstream.Type: GrantFiled: June 15, 1998Date of Patent: November 2, 1999Assignee: Saint-Gobain VitrageInventors: Herbert Radermacher, Karl-Josef Ollfisch, Werner Diederen, Knut Dahlhoff
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Patent number: 5713976Abstract: Process for bending glass sheets, particularly in pairs, in which the glass sheets undergo a pre-bending under the effect of gravity in a horizontal position on a concave annular bending ring (3) whose profile corresponds to the desired final profile of the glass sheets, until the edges of the glass plates are applied entirely to the bending block (3). A monolithic convex bending block (31) is then applied over the whole surface and acts from above on the glass sheets (21). The inner part of the sheets then undergoes supplementary bending which gives it the desired final shape, the glass sheets being pressed by suction, against the monolithic convex bending block, at the edge of the monolithic convex bending block (11).Type: GrantFiled: November 4, 1994Date of Patent: February 3, 1998Assignee: Saint Gobain VitrageInventors: Hans-Werner Kuster, Karl-Josef Ollfisch, Georgios Hariskos, Herbert Radermacher, Marco Muller