Patents by Inventor Kai-Uwe Preissig
Kai-Uwe Preissig 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: 7092664Abstract: A digital printing or copying machine (1) is proposed for the one-sided or double-sided printing onto a substrate (5), using at least one toner. The machine (1) includes at least one fixation device (3) for fixing the toner image on the substrate (5). The fixation device (3) has at least one heating device (13) for melting the toner image, past which the substrate (5) can be taken. The machine (1) is distinguished by a guide device (17) for the free floating movement of the substrate (5) in the effective range of the heating device (13).Type: GrantFiled: December 10, 2001Date of Patent: August 15, 2006Assignee: Eastman Kodak CompanyInventors: Gerhard Bartscher, Knut Behnke, Dirk Dobrindt, Gerald Erik Hauptmann, Hans-Otto Krause, Frank-Michael Morgenweck, Kai-Uwe Preissig, Domingo Rohde, Detlef Schulze-Hagenest, Peter-Alexander Püschner
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Patent number: 6993278Abstract: A digital printer or copier machine (1) is proposed for the single-sided or double-sided printing of a substrate (11), with at least one fixing device (3) for fixing toner onto the substrate (11), whereby the fixing device (3) has at least one heating device for fusing the toner. The machine has, in addition, at least one transport device (17), in order to supply the substrate (11) to the heating device, to guide it past the heating device and/or to further transport it from the heating device, whereby the transport device (17) has at least one suction belt (19) that is provided with a number of through-passage openings (21) and can be impinged with a vacuum. The machine (1) is characterized in that the suction belt (19) is constructed as a mesh.Type: GrantFiled: December 18, 2001Date of Patent: January 31, 2006Assignee: Eastman Kodak CompanyInventors: Gerhard Bartscher, Frank-Michael Morgenweck, Kai-Uwe Preissig, Domingo Rohde, Detlef Schulze-Hagenest, Ralf Gerald Allner, Thomas Biber, Markus Weber
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Patent number: 6686573Abstract: A process or device for fusing toner on a carrier or a printing material, particularly a sheet-type printing material, preferably for a digital printer, wherein the printing material with the toner is irradiated with microwaves from at least one microwave conductor, which is heated to melt the toner and a toner is used which shows a sharp drop of the elastic modulus G′ from its hard state to its liquid state when heated. The ratio of the value of the elastic modulus G′ of the toner is the reference temperature value calculated from the initial temperature at the beginning of the glass transition of the toner plus 50° C. to the value of the elastic modulus G′ at the initial temperature is <10−5.Type: GrantFiled: December 4, 2001Date of Patent: February 3, 2004Assignee: NexPress Solutions LLCInventors: Knut Behnke, Hans-Otto Krause, Frank-Michael Morgenweck, Domingo Rohde, Detlef Schulze-Hagenest, Gerhard Bartscher, Kai-Uwe Preissig, Dinesh Tyagi
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Patent number: 6683287Abstract: A device and process for fixing a toner onto a substrate or a printed material, especially a sheet-shaped printed material, preferably for a digital printer, which is characterized in that the printed material that has the toner is irradiated with microwaves from at least one microwave emitter, and is heated to melt the toner, and that a toner is used which exhibits a sharp drop of the modulus of elasticity G′ from its solid to its liquid state when it is heated. Preferably, the ratio of the value of the modulus of elasticity G′ of the toner according to the invention at the reference temperature value, calculated from the starting temperature at the beginning of the glass transformation of the toner plus 50° C., to the value of the modulus of elasticity G′ at the starting temperature itself is <10−5.Type: GrantFiled: December 4, 2001Date of Patent: January 27, 2004Assignee: NexPress Solutions LLCInventors: Knut Behnke, Hans-Otto Krause, Frank-Michael Morgenweck, Domingo Rohde, Detlef Schulze-Hagenest, Gerhard Bartscher, Kai-Uwe Preissig, Dinesh Tyagi
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Patent number: 6608986Abstract: A digital printing or copying machine (1), and a process which can be carried out with it, for one-sided or double-sided printing of a substrate (5) using at least one toner are proposed. The machine (1) includes at least one fixing device (3) for fixing of a toner image (29) on the substrate (5), having at least one heater (21, 23) for melting the toner image (29), past which the substrate (5) can be guided by a transport device (11) which has one or more transport elements (29, 63 to 71). The machine (1) is characterized in that the heater (21, 23) has at least two melt areas (31, 33, 43 to 47) on the substrate (5) which viewed in the substrate transport direction (15) are arranged in succession and laterally offset to one another.Type: GrantFiled: December 17, 2001Date of Patent: August 19, 2003Assignee: NexPress Solutions LLCInventors: Gerhard Bartscher, Gerald Erik Hauptmann, Frank-Michael Morgenweck, Kai-Uwe Preissig, Peter-Alexander Püschner, Domingo Rohde
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Publication number: 20030013034Abstract: A process and device for fusing toner onto a carrier or a print substrate, in particular a sheet-like print substrate, preferably for a digital printing machine, wherein the toner bearing print substrate is heated by microwaves emanating from at least one microwave emitter in order to melt the toner, and wherein a toner is used that demonstrates a sharp drop-off in the elastic module G′ from its solid to its liquid state upon heating. The ratio of the elastic module G′ of the toner at the reference temperature, calculated from the initial temperature at the start of the glass transition of the toner plus 50° C., to the value of the elastic module G′ at the initial temperature itself is preferably <10−5.Type: ApplicationFiled: December 4, 2001Publication date: January 16, 2003Inventors: Knut Behnke, Hans-Otto Krause, Frank-Michael Morgenweck, Domingo Rohde, Detlef Schulze-Hagenest, Gerhard Bartscher, Kai-Uwe Preissig, Dinesh Tyagi
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Publication number: 20020191993Abstract: A digital printing or copying machine (1) is proposed for the one-sided or double-sided printing onto a substrate (5), using at least one toner. The machine (1) includes at least one fixation device (3) for fixing the toner image on the substrate (5). The fixation device (3) has at least one heating device (13) for melting the toner image, past which the substrate (5) can be taken. The machine (1) is distinguished by a guide device (17) for the free floating movement of the substrate (5) in the effective range of the heating device (13).Type: ApplicationFiled: December 10, 2001Publication date: December 19, 2002Inventors: Gerhard Bartscher, Knut Behnke, Dirk Dobrindt, Gerald Erik Hauptmann, Hans-Otto Krause, Frank-Michael Morgenweck, Kai-Uwe Preissig, Domingo Rohde, Detlef Schulze-Hagenest, Peter-Alexander Puschner
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Publication number: 20020154928Abstract: A digital printing or copying machine (1), and a process which can be carried out with it, for one-sided or double-sided printing of a substrate (5) using at least one toner are proposed. The machine (1) includes at least one fixing device (3) for fixing of a toner image (29) on the substrate (5), having at least one heater (21, 23) for melting the toner image (29), past which the substrate (5) can be guided by a transport device (11) which has one or more transport elements (29, 63 to 71). The machine (1) is characterized in that the heater (21, 23) has at least two melt areas (31, 33, 43 to 47) on the substrate (5) which viewed in the substrate transport direction (15) are arranged in succession and laterally offset to one another.Type: ApplicationFiled: December 17, 2001Publication date: October 24, 2002Inventors: Gerhard Bartscher, Gerald Erik Hauptmann, Frank-Michael Morgenweck, Kai-Uwe Preissig, Peter-Alexander Puschner, Domingo Rohde
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Publication number: 20020139264Abstract: A digital printer or copier machine (1) is proposed for the single-sided or double-sided printing of a substrate (11), with at least one fixing device (3) for fixing toner onto the substrate (11), whereby the fixing device (3) has at least one heating device for fusing the toner. The machine has, in addition, at least one transport device (17), in order to supply the substrate (11) to the heating device, to guide it past the heating device and/or to further transport it from the heating device, whereby the transport device (17) has at least one suction belt (19) that is provided with a number of through-passage openings (21) and can be impinged with a vacuum. The machine (1) is characterized in that the suction belt (19) is constructed as a mesh.Type: ApplicationFiled: December 18, 2001Publication date: October 3, 2002Inventors: Gerhard Bartscher, Frank-Michael Morgenweck, Kai-Uwe Preissig, Domingo Rohde, Detlef Schulze-Hagenest, Ralf Gerald Allner, Thomas Biber, Markus Weber
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Publication number: 20020100754Abstract: A device and process for fixing a toner onto a substrate or a printed material, especially a sheet-shaped printed material, preferably for a digital printer, which is characterized in that the printed material that has the toner is irradiated with microwaves from at least one microwave emitter and is heated to melt the toner and that a toner is used which exhibits a sharp drop of the modulus of elasticity G′ from its solid to its liquid state when it is heated. Preferably, the ratio of the value of the modulus of elasticity G′ of the toner according to the invention at the reference temperature value, calculated from the starting temperature at the beginning of the glass transformation of the toner plus 50° C., to the value of the modulus of elasticity G′ at the starting temperature itself is <10−5.Type: ApplicationFiled: December 4, 2001Publication date: August 1, 2002Inventors: Knut Behnke, Hans-Otto Krause, Frank-Michael Morgenweck, Domingo Rohde, Detlef Schulze-Hagenest, Gerhard Bartscher, Kai-Uwe Preissig, Dinesh Tyagi
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Publication number: 20020088798Abstract: A process or device for fusing toner on a carrier or a printing material, particularly a sheet-type printing material, preferably for a digital printer, wherein the printing material with the toner is irradiated with microwaves from at least one microwave conductor, which is heated to melt the toner and a toner is used which shows a sharp drop of the elastic modulus G′ from its hard state to its liquid state when heated. The ratio of the value of the elastic modulus G′ of the toner is the reference temperature value calculated from the initial temperature at the beginning of the glass transition of the toner plus 50° C. to the value of the elastic modulus G′ at the initial temperature is <10−5.Type: ApplicationFiled: December 4, 2001Publication date: July 11, 2002Inventors: Knut Behnke, Hans-Otto Krause, Frank-Michael Morgenweck, Domingo Rohde, Detlef Schulze-Hagenest, Gerhard Bartscher, Kai-Uwe Preissig, Dinesh Tyagi
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Publication number: 20020088799Abstract: A device and process for fixing a toner onto a substrate or a printed material, especially a sheet-shaped printed material, preferably for a digital printer, which is characterized in that the printed material that has the toner is irradiated with microwaves from at least one microwave emitter, and is heated to melt the toner, and that a toner is used which exhibits a sharp drop of the modulus of elasticity G′ from its solid to its liquid state when it is heated. Preferably, the ratio of the value of the modulus of elasticity G′ of the toner according to the invention at the reference temperature value, calculated from the starting temperature at the beginning of the glass transformation of the toner plus 50° C., to the value of the modulus of elasticity G′ at the starting temperature itself is <10−5.Type: ApplicationFiled: December 4, 2001Publication date: July 11, 2002Inventors: Knut Behnke, Hans-Otto Krause, Fank-Michael Morgenweck, Domingo Rohde, Detlef Schulze-Hagenest, Gerhard Bartscher, Kai-Uwe Preissig, Dinesh Tyagi
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Patent number: 5578228Abstract: The laser beam melts a plate or strip workpiece with the formation of a vapor capillary at a cutting point and the melt is driven off by a cutting gas consisting of a mixture of inert gas and hydrogen gas, the hydrogen gas making up to 25% by volume of the cutting gas. In order to maintain the vapor capillary, the cutting gas is taken to the surface of the melt at the cutting point at such a pressure and with such a pressure distribution that the temperature at the surface of the melt is kept at boiling point and the melt is continuously driven out of the cutting seam in the side away from the cutting direction of the vapor capillary. The plate or strip workpiece can be a magnetic steel sheet. An additional stream of gas, liquid, or solid particles can be used to move melt out of the cutting seam.Type: GrantFiled: April 3, 1995Date of Patent: November 26, 1996Assignee: Thyssen Stahl AGInventors: Eckhard Beyer, Kai-Uwe Preissig, Dirk Petring, Dieter Bingener, Hans-Dieter Riehn
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Patent number: 5444210Abstract: The disclosure involves an apparatus (1) for the flying-shear cutting of thin-layer material, reeled off from a coil, by laser radiation, especially metal strips, fabrics, synthetic resins, paper, cardboard, and composite materials. In order to be able to crosscut individual strip sections (17) at high speeds without having to arrest the strip (2), the apparatus (1) consists of a traverse (3) arranged at an angle to the travel direction (a) of the strip (2), this traverse being rotatably supported and driven about its longitudinal axis of symmetry (4). Mutually opposed guides (5) for two separately operable laser cutting heads (6) with nozzles (7) are mounted in parallel to the longitudinal axis of symmetry (4) of the traverse (3). The laser cutting heads (6) are in each case movable separately or individually by way of the guides (5).Type: GrantFiled: October 26, 1993Date of Patent: August 22, 1995Inventors: F. Dieter Bingener, Kai-Uwe Preissig, Arnold Gillner, Dirk Petring