Patents by Inventor Frank Bartels
Frank Bartels 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: 8208194Abstract: The invention relates to a display device having at least one electronically controllable display element comprising at least one non-polar and at least two electrically conducting or polar liquids, a fluidically closed volume having a visible subvolume, a further subvolume and at least two storage volumes connected to said subvolumes, as well as a voltage source connected to a first electrode array. It is provided thereby that each of said electrically conducting or polar liquids assumes a volume which is dimensioned such that, independent of application of voltage to the electrode array, always a fluidically tight closure for non-polar liquid between the respective storage volume and either the visible or the further subvolume is formed.Type: GrantFiled: March 21, 2011Date of Patent: June 26, 2012Assignee: Advanced Display Technology AGInventors: Oliver Mueller-Marc, Dieter Jerosch, Andriy Bitman, Frank Bartels
-
Patent number: 8197657Abstract: An arrangement of electrodes is provided in which there is a plurality of electrodes located in two planes and offset from one another in the direction of movement, and which within each plane are arranged in at least two electrically interconnected and alternating groups. A method is also provided for the movement or transport of drops of liquid utilizing the electrowetting effect and utilizing the above arrangement.Type: GrantFiled: October 12, 2009Date of Patent: June 12, 2012Assignee: Advanced Display Technology AGInventors: Frank Bartels, Dieter Jerosch, Andriy Bitman
-
Publication number: 20120105935Abstract: The invention relates to an apparatus for displaying information by way of at least one fluid. For this purpose, the apparatus comprises at least one display element having two volumes, wherein the first volume is disposed between a transparent cover layer and a non-transparent intermediate layer and the second volume is disposed between the intermediate layer and a final layer such that only the content of the upper volume is visible. The display according to the invention further comprises at least one fluidic transition, by way of which the fluid can be transported between the two volumes. The apparatus according to the invention has an optimized space requirement, solves the problem of uneven saturation over the surface of a display element, and is additionally not sensitive to mechanical interference.Type: ApplicationFiled: May 14, 2010Publication date: May 3, 2012Applicant: ADVANCED DISPLAY TECHNOLOGY AGInventors: Andriy Bitman, Frank Bartels
-
Patent number: 8087191Abstract: An apparatus for the pixel-integrated return of fluid in the pixel of a fluidic display is characterized in that the fluid with which the desired information is to be displayed and/or the carrier fluid in which the fluid is optionally embedded can be returned in a particularly compact manner and in a manner which is invisible to an observer past the visible part of a pixel (image compartment) into a reservoir (reservoir compartment) through or out of the reservoir. The device comprises an image compartment, a reservoir compartment, a connecting duct and at least one return duct, whereby the at least one return duct is formed by the fact that the connecting duct has at least one area with an uninterruptedly enlarged cross section which transitions in a specified manner into the cross section of the original cross section.Type: GrantFiled: April 21, 2009Date of Patent: January 3, 2012Assignee: advanced display technology AGInventors: Frank Bartels, Andriy Bitman, Dieter Jerosch
-
Publication number: 20110235158Abstract: The invention relates to a display device having at least one electrically controllable display element comprising a first and at least one further liquid, a plurality of fluidically closed volumes and at least one voltage source which is connected to an electrode array, wherein said volumes include flat visible subvolumes which stacked upon another along their shortest dimension, having associated second subvolumes which pass through those flat visible subvolumes which are underlying that flat visible subvolume which is associated with the respective second subvolume.Type: ApplicationFiled: March 22, 2011Publication date: September 29, 2011Applicant: ADVANCED DISPLAY TECHNOLOGY AGInventors: Oliver Mueller-Marc, Dieter Jerosch, Andriy Bitman, Frank Bartels
-
Publication number: 20110235157Abstract: The invention relates to a display device having at least one electronically controllable display element comprising at least one non-polar and at least two electrically conducting or polar liquids, a fluidically closed volume having a visible subvolume, a further subvolume and at least two storage volumes connected to said subvolumes, as well as a voltage source connected to a first electrode array. It is provided thereby that each of said electrically conducting or polar liquids assumes a volume which is dimensioned such that, independent of application of voltage to the electrode array, always a fluidically tight closure for non-polar liquid between the respective storage volume and either the visible or the further subvolume is formed.Type: ApplicationFiled: March 21, 2011Publication date: September 29, 2011Applicant: ADVANCE DISPLAY TECHNOLOGY AGInventors: Oliver Mueller-Marc, Dieter Jerosch, Andriy Bitman, Frank Bartels
-
Publication number: 20110216391Abstract: The invention relates to a security element including at least one display element for non-resettable visible display of information, wherein said display element comprises a first and a second volume which are fluidically connected via at least one duct, and only one electrically controllable electrode which is associated to one of said volumes and is configured, when charged with an electric voltage, to vary the surface tension of a liquid which is present in said associated volume, wherein said liquid comprises at least an electrically conducting and/or polar and a non-polar fraction, and at least said electrically conducting fraction being completely and in a stable manner provided in that of both volumes which is not associated with an electrode and wherein said electrically conducting and/or polar fraction may be moved irreversibly and at least partly due to a single charging of the electrode into the volume which is associated with an electrode.Type: ApplicationFiled: February 28, 2011Publication date: September 8, 2011Applicant: ADVANCED DISPLAY TECHNOLOGY AGInventors: Oliver Mueller-Marc, Frank Bartels, Karlheinz Blankenbach, Juergen Rawert, Andriy Bitman, Dieter Jerosch
-
Publication number: 20110181940Abstract: The invention relates to a display, for using liquids to display information and a corresponding method. According to the invention, said display comprises a number of display elements with cavities, at least one display liquid for displaying information and at least one liquid reservoir for providing the at least one display liquid, characterised in that each display element further comprises a dosing device, by means of which display liquid from the liquid reservoir may be dosed into and out of the display element. The dosing device thus permits a precise dosing of defined display liquid volumes into or out of the display element. The method in which said dosing device finds use is used for precisely repeated dosing of defined volumes of display liquid.Type: ApplicationFiled: August 18, 2009Publication date: July 28, 2011Applicant: Advanced Display Technology AGInventors: Frank Bartels, Juergen Rawert, Andriy Bitman
-
Publication number: 20110158822Abstract: Disclosed is a device for conveying liquid and/or gaseous media, comprising at least two pumping chambers whose volumes change periodically during operation. Each pumping chamber is provided with at least one intake and discharge valve while all pumping chambers are fitted with a common main inlet and a common main outlet. A drive unit which is configured such that the volumes of the pumping chambers change at a phase shift of 2?/number of chambers is allocated to the pumping chambers. Also disclosed is a device for conveying liquid and/or gaseous media, comprising at least two pumping chambers whose volumes change periodically during operation. Said pumping chambers are embodied and disposed such that at least two adjacent pumping chambers encompass a joint wall which is configured so as to modify the volume of the adjacent pumping chambers. The invention further relates to a method for conveying liquid and/or gaseous media with the aid of the disclosed device.Type: ApplicationFiled: April 3, 2007Publication date: June 30, 2011Inventor: Frank Bartels
-
Publication number: 20110137580Abstract: The invention relates to a device and a method for measuring volumetric flow rates of preferably liquid, but also gaseous fluids. A movably mounted membrane, one side of which can fluidically communicate with the pressure of the conveyed medium, is the core of the measuring instrument. Changes in pressure, which occur particularly in pulsating conveying mechanisms (e.g. diaphragm pumps), result in cyclic pressure variations in the measuring chamber and on the measuring membrane. If there is no pulsation because a non-pulsating conveying mechanism is used, the pulsation can be generated by means of an additional pulsating mechanism. The cyclically changing deflection of the measuring membrane can be detected by means of a suitable sensor, particularly a piezo active material that generates a tension when being bent, and can be fed to an electronic evaluation unit, for example.Type: ApplicationFiled: December 19, 2007Publication date: June 9, 2011Inventors: Frank Bartels, Markus Rawert
-
Publication number: 20110083963Abstract: An arrangement of electrodes is provided in which there is a plurality of electrodes located in two planes and offset from one another in the direction of movement, and which within each plane are arranged in at least two electrically interconnected and alternating groups. A method is also provided for the movement or transport of drops of liquid utilizing the electrowetting effect and utilizing the above arrangement.Type: ApplicationFiled: October 12, 2009Publication date: April 14, 2011Applicant: ADVANCED DISPLAY TECHNOLOGY AGInventors: Frank Bartels, Dieter Jerosch, Andriy Bitman
-
Patent number: 7909974Abstract: A layer composition of an electrowetting system with a first electrode layer, an insulator layer on the first electrode layer, and a fluid layer over the insulator layer, wherein the fluid layer comprises at least two immiscible fluids which, under the influence of an applied voltage, reversibly change their wetting behavior of a surface allocated to the insulator layer, wherein the insulator layer being at least in part built of a material with a permittivity of ?r?20. The fluid layer is adjacent to at least one layer being repellent for the at least one of the fluids. On the surface of the repellent layer pointing away from the fluid layer is provided an adhesion enhancing layer before the subsequent layer.Type: GrantFiled: April 21, 2008Date of Patent: March 22, 2011Assignee: Advanced Display Technology AGInventors: Frank Bartels, Andriy Bitman, Dieter Jerosch
-
Publication number: 20110063334Abstract: Display element with at least one color-generating cell of the first type which has an emissive light source, and with at least one color-generating cell of the second type which has a reflective and/or transmissive and/or transflective light source, whereby each cell of the second type can be driven so that it makes visible one of the chromatic colors red, green, blue, magenta, cyan and yellow and the achromatic colors white and black, to compensate at least partly for the absence of the color impression created by at least one color-generating cell of the first type on account of the ambient light of the display element.Type: ApplicationFiled: August 18, 2010Publication date: March 17, 2011Applicant: ADVANCED DISPLAY TECHNOLOGY AGInventors: Andriy Bitman, Dieter Jerosch, Frank Bartels, Karlheinz Blankenbach, Juergen Rawert
-
Publication number: 20110005606Abstract: A device includes a number of N?2 pump chambers having N separate chamber volumes, each of which may be altered independently of the other(s). The volume changes of the pump chambers occur periodically with substantially the same frequency (f). The device further includes N actuators for changing the respective chamber volumes and valves for establishing the pumping direction, and finally a common inlet and outlet. The pump chambers of the device are disposed in series one behind the other, and the forms of the periods of volume changes of all pump chambers are substantially identical. Moreover, an ideal phase offset PHI of approximately 180° exists between the volume change of the chamber volumes of two sequential pump chambers.Type: ApplicationFiled: September 25, 2008Publication date: January 13, 2011Inventors: Frank Bartels, Severin Dahms, Uwe Kampmeyer, Markus Rawert
-
Publication number: 20100165441Abstract: A layer composition of an electrowetting system with a first electrode layer, an insulator layer on the first electrode layer, and a fluid layer over the insulator layer, wherein the fluid layer comprises at least two immiscible fluids which, under the influence of an applied voltage, reversibly change their wetting behavior of a surface allocated to the insulator layer, wherein the insulator layer being at least in part built of a material with a permittivity of ?r?20. The fluid layer is adjacent to at least one layer being repellent for the at least one of the fluids. On the surface of the repellent layer pointing away from the fluid layer is provided an adhesion enhancing layer before the subsequent layer.Type: ApplicationFiled: April 21, 2008Publication date: July 1, 2010Applicant: ADVANCED DISPLAY TECHNOLOGY AGInventors: Frank Bartels, Andriy Bitman, Dieter Jerosch
-
Publication number: 20100108516Abstract: The invention relates to the use of a fluid mixture for electrowetting in a device that is suitable for this. According to the invention, the fluid mixture consists of at least two components, namely an electrically inducible liquid and an electrically inert fluid. These two components form a bi- or multiphasic mixture. The electrically inducible liquid responds to a change of an electric field that surrounds it or completely or partly permeates it, in such way that it changes its surface tension so that its form is changed too, particularly if only parts of its surface are permeated by the electric field, or if the field strength is distributed not homogenously. According to a particularly preferred embodiment, the electrically inducible liquid consists of propylene carbonate.Type: ApplicationFiled: April 17, 2008Publication date: May 6, 2010Applicant: Advanced Display Technology AGInventors: Frank Bartels, Dieter Jerosch
-
Patent number: 7613498Abstract: A device for supporting a patient is used with a computer-tomography (CT) device. The patient to be examined is to be introduced into an opening in a gantry of the CT device. The patient supporting device has a height-adjustable device disposed laterally with respect to the gantry opening and permits the height of a support for a patient to be adjusted. A support arm extends from the height-adjustable device to a fixture for supporting a stretcher and is rotatable with respect to the height adjustable device.Type: GrantFiled: October 27, 2004Date of Patent: November 3, 2009Assignee: Siemens AktiengesellschaftInventors: Frank Bartels, Peter Knappe, Stefan Leidenberger
-
Publication number: 20090262410Abstract: An apparatus for the pixel-integrated return of fluid in the pixel of a fluidic display is characterized in that the fluid with which the desired information is to be displayed and/or the carrier fluid in which the fluid is optionally embedded can be returned in a particularly compact manner and in a manner which is invisible to an observer past the visible part of a pixel (image compartment) into a reservoir (reservoir compartment) through or out of the reservoir. The device comprises an image compartment, a reservoir compartment, a connecting duct and at least one return duct, whereby the at least one return duct is formed by the fact that the connecting duct has at least one area with an uninterruptedly enlarged cross section which transitions in a specified manner into the cross section of the original cross section.Type: ApplicationFiled: April 21, 2009Publication date: October 22, 2009Applicant: Advanced Display Technology AGInventors: Frank Bartels, Andriy Bitman, Dieter Jerosch
-
Publication number: 20090020050Abstract: A roller grate consists of rollers disposed one behind the other by means of which the material to be burned is moved, and of a drive for the rollers that constitutes a hydraulic motor for driving one or several rollers. A method for operating the roller grate consists of operating the hydraulic motor in angular steps. The roller grate has the advantage that roller grates having low-weight drive units can be operated with high reliability and with little wear of the drive units.Type: ApplicationFiled: July 15, 2008Publication date: January 22, 2009Inventors: Bernhard Bange, Frank Bartels, Ulrich Priesmeier
-
Publication number: 20080266204Abstract: System (1) is provided for the creation of images, texts and information that are visible under incident light. The system (1) includes: at least one display (10); and one control unit (11) for the control of the display (10). The control unit (11) is connected with a display (10), and/or at least one sensor (13), and/or at least one second remote control unit (12) via at least one interface (110).Type: ApplicationFiled: December 20, 2005Publication date: October 30, 2008Inventors: Frank Bartels, Nader Mark Isam Tahhan, Dieter Jerosch, Oliver Muller-Marc