Patents by Inventor Gerhard Doll

Gerhard Doll 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: 7446463
    Abstract: The invention relates to contact-making of dielectrically impeded discharge lamps by means of a mechanical procedure with plastic deformation of a contact surface 17. It is thus possible to dispense with thermal steps such as soldered connections or welded connections and to therefore make savings in terms of time and on the complexity of the apparatus used.
    Type: Grant
    Filed: July 21, 2005
    Date of Patent: November 4, 2008
    Assignee: Patent-Treuhand-Gesellschaft fuer Elektrische Gluehlampen mbH
    Inventors: Gerhard Döll, Jörg Otterstätter
  • Patent number: 7334916
    Abstract: An electrical illumination device for generating saturated colors with at least two illumination units. The illumination units each have a discharge vessel with a low-pressure discharge and a phosphor coating on the inner wall of the vessel, characterized in that at least one illumination unit has a discharge vessel with a xenon fill and a dielectric barrier discharge.
    Type: Grant
    Filed: February 3, 2005
    Date of Patent: February 26, 2008
    Assignee: Patent-Treuhand-Gesellschaft fuer Elektrisćche Gluehlampen mbH
    Inventors: Gerhard Doll, Martin Zachau
  • Patent number: 7291979
    Abstract: In the dielectric barrier discharge lamps according to the invention, the elongate, for example strip-like or linear, electrodes are each separated into two electrode elements (14a, 14b; 15a, 15b) by a gap in the longitudinal direction. This makes it possible, as intended, to operate one element (14a, 15a) of the electrode elements separately from the other element (14b, 15b) and, as a result, to cause either only one part of the lamp to illuminate or the entire lamp. For this purpose, one element (14a, 15a) of the electrode elements is connected to a first operating device (22), and the other element (14b, 15b) to a second operating device (21).
    Type: Grant
    Filed: February 8, 2005
    Date of Patent: November 6, 2007
    Assignee: Patent-Treuhand-Gesellschaft fuer Elektrische Gluehlampen mbH
    Inventor: Gerhard Doll
  • Patent number: 7025472
    Abstract: A coupling element (2) is proposed for the combining of at least two elongate lamps with in each case two ends. For this purpose, the coupling element (2) has a continuous receptacle area which is provided for receiving an end of each lamp. The receptacle area comprises a reflector (6) in order to reduce the luminance decrease in the region between the lamp ends. With one or a plurality of coupling elements according to the invention in conjunction with two or more elongate lamps, illumination systems having different luminous lengths can be realized in a modular manner.
    Type: Grant
    Filed: March 23, 2004
    Date of Patent: April 11, 2006
    Assignee: Patent-Treuhand-Gesellschaft für elektrische Gluehlampen mbH
    Inventors: Gerhard Döll, Jörg Rink
  • Publication number: 20060028142
    Abstract: The invention relates to contact-making of dielectrically impeded discharge lamps by means of a mechanical procedure with plastic deformation of a contact surface 17. It is thus possible to dispense with thermal steps such as soldered connections or welded connections and to therefore make savings in terms of time and on the complexity of the apparatus used.
    Type: Application
    Filed: July 21, 2005
    Publication date: February 9, 2006
    Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCH GLUHLAMPEN MBH
    Inventors: Gerhard Doll, Jorg Otterstatter
  • Patent number: 6984930
    Abstract: A dielectric barrier discharge lamp having electrodes arranged on the wall of the discharge vessel has a VUV/VIS reflection layer (6) made of a material with a high secondary electron emission coefficient on at least a part of the inner wall of the discharge vessel. A luminescent material layer (7) is in turn applied on the VUV/VIS reflection layer (6). Moreover, at least one partial region (8) without luminescent material is provided in the luminescent material layer (7), this at least one partial region (8) partially uncovering the underlying VUV/VIS reflection layer (6) and additionally being arranged at least in direct proximity to one or more electrodes (4) of the lamp. As a result, the ignition behavior of the lamp is improved, in particular during ignition in darkness.
    Type: Grant
    Filed: July 4, 2002
    Date of Patent: January 10, 2006
    Assignee: Patent-Treuhand-Gesellschaft fuer Elektrische Gluehlampen mbH
    Inventor: Gerhard Döll
  • Patent number: 6960874
    Abstract: A dielectric barrier discharge lamp (1) having a tubular discharge vessel (2) and a luminescent material layer on at least a part of the inner wall of the discharge vessel (2) and having elongate electrodes (3) is provided with a coating (10) on a partial region of the inner wall at least at one end of the tubular discharge vessel (2), which coating additionally covers an end of at least one elongate electrode (3) . The material of the coating (10) has a high secondary electron emission coefficient. As a result, the ignition behavior of the lamp is improved, in particular during ignition in darkness.
    Type: Grant
    Filed: July 9, 2002
    Date of Patent: November 1, 2005
    Assignee: Patent-Treuhand-Gesellschaft fuer Elektrische Gluehlampen mbH
    Inventor: Gerhard Döll
  • Publication number: 20050236997
    Abstract: In the case of a dielectric barrier discharge lamp, the discharge vessel (1) is composed of an outer bulb (3) and an inner bulb (4) arranged within the outer bulb, with the result that a discharge space (8) filled with a discharge medium is formed between the inner and the outer bulb. Strip-like electrodes (11) are arranged on the outer side, which is remote from the discharge medium, of the wall of the inner bulb (4). Since there are no longer inner electrodes having a dielectric coating and there is no gas-tight current bushing, this concept combines simple manufacture with protection of the outer electrodes, for example against electric shock.
    Type: Application
    Filed: April 20, 2005
    Publication date: October 27, 2005
    Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCHE GLUHLAMPEN MBH
    Inventors: Walter Danner, Gerhard Doll
  • Publication number: 20050231944
    Abstract: An electrical illumination device for generating saturated colors with at least two illumination units, the illumination units each having a discharge vessel with a low-pressure discharge and a phosphor coating on the inner wall of the vessel, characterized in that at least one illumination unit has a discharge vessel with a xenon fill and a dielectric barrier discharge (R, G, B).
    Type: Application
    Filed: February 3, 2005
    Publication date: October 20, 2005
    Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCHE GLUHLAMPEN MBH
    Inventors: Gerhard Doll, Martin Zachau
  • Publication number: 20050184639
    Abstract: In the dielectric barrier discharge lamps according to the invention, the elongate, for example strip-like or linear, electrodes are each separated into two electrode elements (14a, 14b; 15a, 15b) by a gap in the longitudinal direction. This makes it possible, as intended, to operate one element (14a, 15a) of the electrode elements separately from the other element (14b, 15b) and, as a result, to cause either only one part of the lamp to illuminate or the entire lamp. For this purpose, one element (14a, 15a) of the electrode elements is connected to a first operating device (22), and the other element (14b, 15b) to a second operating device (21).
    Type: Application
    Filed: February 8, 2005
    Publication date: August 25, 2005
    Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCHE GLUHLAMPEN MBH
    Inventor: Gerhard Doll
  • Patent number: 6924599
    Abstract: In order to improve the starting of a dielectric barrier discharge lamp it is proposed to provide elements for igniting an auxiliary discharge inside the exhaust tube (5) of the lamp.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: August 2, 2005
    Assignee: Patent-Treuhaud-Gesellschaft für elektrische Glühlampen mbH
    Inventors: Gerhard Döll, Wolfgang Kumpf, Joseph-A. Olsen
  • Publication number: 20040218386
    Abstract: A coupling element (2) is proposed for the combining of at least two elongate lamps with in each case two ends. For this purpose, the coupling element (2) has a continuous receptacle area which is provided for receiving an end of each lamp. The receptacle area comprises a reflector (6) in order to reduce the luminance decrease in the region between the lamp ends. With one or a plurality of coupling elements according to the invention in conjunction with two or more elongate lamps, illumination systems having different luminous lengths can be realized in a modular manner.
    Type: Application
    Filed: March 23, 2004
    Publication date: November 4, 2004
    Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCHE GLUHL
    Inventors: Gerhard Doll, Jorg Rink
  • Patent number: 6777878
    Abstract: A dielectric barrier discharge lamp has elongated electrodes (3) that are arranged on the inside of the wall of the discharge vessel (2) and are covered by a dielectric layer (4). Arranged on the outside of the wall of the discharge vessel (2) is an electrically conductive means (8) that is limited with reference to the longitudinal axis to a subregion (B) of the discharge vessel wall, for example a metal ring. The startability of the dielectric barrier discharge lamp when first being started or after long operational pauses is improved thereby.
    Type: Grant
    Filed: July 2, 2002
    Date of Patent: August 17, 2004
    Assignee: Patent-Treuhand-Gesellschaft fuer Elektrische Gluehlampen mbH
    Inventors: Werner Berlinghof, Gerhard Döll, Wolfgang Kumpf, Gerwin Thiel
  • Publication number: 20040046490
    Abstract: A dielectric barrier discharge lamp having electrodes arranged on the wall of the discharge vessel has a VUV/VIS reflection layer (6) made of a material with a high secondary electron emission coefficient on at least a part of the inner wall of the discharge vessel. A luminescent material layer (7) is in turn applied on the VUV/VIS reflection layer (6). Moreover, at least one partial region (8) without luminescent material is provided in the luminescent material layer (7), this at least one partial region (8) partially uncovering the underlying VUV/VIS reflection layer (6) and additionally being arranged at least in direct proximity to one or more electrodes (4) of the lamp. As a result, the ignition behavior of the lamp is improved, in particular during ignition in darkness.
    Type: Application
    Filed: June 23, 2003
    Publication date: March 11, 2004
    Inventor: Gerhard Doll
  • Publication number: 20040021411
    Abstract: A dielectric barrier discharge lamp (1) having a tubular discharge vessel (2) and a luminescent material layer on at least a part of the inner wall of the discharge vessel (2) and having elongate electrodes (3) is provided with a coating (10) on a partial region of the inner wall at least at one end of the tubular discharge vessel (2), which coating additionally covers an end of at least one elongate electrode (3). The material of said coating (10) has a high secondary electron emission coefficient. As a result, the ignition behavior of the lamp is improved, in particular during ignition in darkness.
    Type: Application
    Filed: May 20, 2003
    Publication date: February 5, 2004
    Inventor: Gerhard Doll
  • Patent number: 6605899
    Abstract: The discharge tube (1) of a dielectric barrier discharge lamp is closed off in a gas-tight manner with the aid of a disk-like closure element (7) but without the use of joining elements. For this purpose, the discharge tube (1) has a constriction (10), which surrounds the edge of the disk-like closure element (7) in the form of a ring.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: August 12, 2003
    Assignee: Patent-Treuhand-Gesellschaft fuer Elektrische Gluehlampen mbH
    Inventors: Werner Berlinghof, Rolf Bäuerle, Gerhard Döll
  • Publication number: 20030111960
    Abstract: In order to improve the starting of a dielectric barrier discharge lamp it is proposed to provide means for igniting an auxiliary discharge inside the exhaust tube (5) of the lamp.
    Type: Application
    Filed: December 2, 2002
    Publication date: June 19, 2003
    Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCH GLUHLA
    Inventors: Gerhard Doll, Wolfgang Kumpf, Joseph-A. Olsen
  • Publication number: 20030011321
    Abstract: Dielectric barrier discharge lamp having a starting aid A dielectric barrier discharge lamp has elongated electrodes (3) that are arranged on the inside of the wall of the discharge vessel (2) and are covered by a dielectric layer (4). Arranged on the outside of the wall of the discharge vessel (2) is an electrically conductive means (8) that is limited with reference to the longitudinal axis to a subregion (B) of the discharge vessel wall, for example a metal ring. The startability of the dielectric barrier discharge lamp when first being started or after long operational pauses is improved thereby.
    Type: Application
    Filed: July 2, 2002
    Publication date: January 16, 2003
    Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCHE GLUHLAMPEN MBH
    Inventors: Werner Berlinghof, Gerhard Doll, Wolfgang Kumpf, Gerwin Thiel
  • Publication number: 20020163306
    Abstract: Dielectric barrier discharge lamp The discharge tube (1) of a dielectric barrier discharge lamp is closed off in a gas-tight manner with the aid of a disk-like closure element (7) but without the use of joining means. For this purpose, the discharge tube (1) has a constriction (10), which surrounds the edge of the disk-like closure element (7) in the form of a ring.
    Type: Application
    Filed: May 23, 2002
    Publication date: November 7, 2002
    Inventors: Werner Berlinghof, Rolf Bauerle, Gerhard Doll
  • Patent number: 6271743
    Abstract: To simplify coil production, in particular coils used for high-voltage transformers, a conductor is wound on to a winding form. The conductor comprises a plurality of conductor portions. The conductor portions overlap one another partially and are insulated from one another. A conductor and a winding arrangement can be produce with this method.
    Type: Grant
    Filed: May 22, 1998
    Date of Patent: August 7, 2001
    Assignee: Siemens Aktiengesellschaft
    Inventors: Walter Müller, Gerhard Döll, Erwin Hager