Patents by Inventor Frank Vollkommer

Frank Vollkommer 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).

  • Publication number: 20050215166
    Abstract: The invention relates to a new design of discharge vessel for a discharge lamp, in which dielectrically impeded discharges are to be generated. In this case, a discharge vessel plate 1, 9 is, as it were, of two-fold design, specifically as a first discharge vessel plate 1 with an external electrode set and, in addition, as a stabilizing plate 9 outside the first discharge vessel plate 1.
    Type: Application
    Filed: May 19, 2005
    Publication date: September 29, 2005
    Inventors: Lothar Hitzschke, Frank Vollkommer
  • Patent number: 6897611
    Abstract: The invention relates to the capacitive modulation of the field distribution in a silent discharge lamp 1, by a structured, electrically conductive device 2 for definition of preferred locations for discharge structures in the lamp 1.
    Type: Grant
    Filed: September 5, 2001
    Date of Patent: May 24, 2005
    Assignee: Patent-Treuhand-Gesellschaft fuer Elektrische Gluehlampen mbH
    Inventors: Lothar Hitzschke, Frank Vollkommer
  • Publication number: 20050077808
    Abstract: In a discharge lamp having a discharge vessel and external electrodes, at least one electrode similar to a conductor track is an integral part of a laminate (5) which is adhesively bonded to the outer side of the discharge vessel and comprises a carrier film made of electric insulating material.
    Type: Application
    Filed: October 1, 2004
    Publication date: April 14, 2005
    Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCHE GLUHLAMPEN mbH
    Inventors: Lothar Hitzschke, Frank Vollkommer
  • Patent number: 6853124
    Abstract: A flat fluorescent lamp (1) has a discharge vessel (2) having a base plate (7), a top plate (8) and a frame (9) which are connected to one another in a gas-tight fashion by means of solder (10). Structures resembling conductor tracks function in the interior of the discharge vessel as electrodes (3-6), in the feedthrough region as feedthroughs, and in the external region as external supply leads (13; 14). Flat lamps of the most different sizes can thereby be produced simply in engineering terms and in a fashion capable of effective automation. Moreover, virtually any electrode shapes can be realized, in particular optimized with regard to a uniform luminous density with a reduced drop in luminous density towards the edges of the flat lamp. At least the anodes (5, 6) are covered in each case with a dielectric layer (15). The lamp (1) is preferably operated by means of a pulsed voltage source and serves as background lighting for LCDs, for example in monitors or driver information displays.
    Type: Grant
    Filed: January 14, 2000
    Date of Patent: February 8, 2005
    Assignee: Patent-Treuhand-Gesellschaft fuer Elektrische Gluehlampen mbH
    Inventors: Frank Vollkommer, Lothar Hitzschke
  • Patent number: 6837767
    Abstract: A novel method for producing discharge lamps, in which discharge vessels 5 are filled in a chamber 4 with the required gas filling at normal pressure.
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: January 4, 2005
    Assignee: Patent-Treuhand-Gesellschaft fuer Elektrische Gluehlampen mbH
    Inventors: Lothar Hitzschke, Frank Vollkommer
  • Publication number: 20040174113
    Abstract: The present invention relates to novel discharge structures for dielectric barrier discharge lamps, in which discharge electrode sections 5, 6, which are associated with the individual discharges 7, of the respective electrode strips 3, 4 overhang adjacent sections of the electrode strips 3, 4.
    Type: Application
    Filed: February 27, 2004
    Publication date: September 9, 2004
    Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCHE GLUHL
    Inventors: Lothar Hitzschke, Frank Vollkommer
  • Publication number: 20040155571
    Abstract: The invention relates to a discharge lamp having a base plate and a cover which is arranged in an essentially parallel manner thereto and which is corrugated in order to enable light to exit in a homogeneous manner.
    Type: Application
    Filed: April 5, 2004
    Publication date: August 12, 2004
    Inventors: Lothar Hitzschke, Frank Vollkommer
  • Patent number: 6762549
    Abstract: In the case of a quiet discharge lamp, support elements for supporting a top plate are provided, by comparison with a base plate, in larger numbers and in an alternating arrangement with individual discharge structures.
    Type: Grant
    Filed: April 15, 2002
    Date of Patent: July 13, 2004
    Assignee: Patent-Treuhand-Gesellschaft fuer Elektrische Gluehlampen mbH
    Inventors: Lothar Hitzschke, Frank Vollkommer
  • Publication number: 20040033751
    Abstract: The invention relates to an improved method of production for a flat radiator discharge lamp designed for dielectrically impeded discharges, in which, during a filling step for the discharge vessel, a plate of the discharge vessel is jacked up on parts, later softening, of support elements in order to be lowered onto the other plate at a specific temperature. In this case, the support elements serve, in addition, to improve the mechanical stability of the finished flat radiator. According to the invention, only a small number of the support elements present in a relatively large number are used for the outlined function of holding up the plate.
    Type: Application
    Filed: April 8, 2003
    Publication date: February 19, 2004
    Inventors: Lothar Hitzschke, Frank Vollkommer
  • Patent number: 6693377
    Abstract: The invention relates to a printing method for applying dielectric layers made of solder glass on strip-shaped metal electrodes of discharge lamps, which are operated by means of pulsed dielectrically inhibited discharge. An aggregate having a higher melting temperature than solder glass, e.g. crystalline or amorphous aluminum oxide or quartz glass powder, is used as printing paste in said method. The typical percentage by weight of the aggregate is between 2 and 30%. Better wetting of the strip-shaped metal electrode is thus obtained.
    Type: Grant
    Filed: December 12, 2000
    Date of Patent: February 17, 2004
    Assignee: Patent-Treuhand-Gesellschaft fuer Elektrische Gluehlampen mbH
    Inventors: Ulrich Mueller, Franz Zwaschka, Frank Vollkommer
  • Patent number: 6657392
    Abstract: The invention relates to a silent discharge lamp in which support elements for supporting a top plate opposite a base plate are designed as a unipartite component of the top plate and have a tapering contour.
    Type: Grant
    Filed: May 21, 2002
    Date of Patent: December 2, 2003
    Assignee: Patent-Treuhand-Gesellschaft fuer Elektrische Gluehlampen mbH
    Inventors: Lothar Hitzschke, Frank Vollkommer
  • Patent number: 6636004
    Abstract: The discharge spacings in discharge lamps for dielectrically impeded discharges are shortened below 3 mm, as a result of which dead times of pulsed active-power injecting can be increased so strongly, for example beyond 50 ms, that the dimming properties of the discharge lamp are greatly improved.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: October 21, 2003
    Assignee: Patent-Treuhand-Gesellschaft fuer Elektrische Gluehlampen mbH
    Inventors: Frank Vollkommer, Lothar Hitzschke
  • Patent number: 6568774
    Abstract: The invention improves an operating method, already described in the prior application 198 39 329.6, for a silent discharge lamp L, in which, using the forward transformer principle, a voltage pulse effecting a forward ignition is impressed from a primary circuit P via a transformer T into a secondary circuit S containing the silent discharge lamp L, and the secondary circuit S thereafter executes a half wave which, as a consequence of the polarization, leads to a back ignition in the discharge lamp L. The improvement consists essentially in that an inductance of the transformer T which governs a transformer current is temporally varied.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: May 27, 2003
    Assignee: Patent-Treuhand-Gesellschaft fuer Elektrische Gluehlampen mbH
    Inventors: Lothar Hitzschke, Frank Vollkommer
  • Patent number: 6545427
    Abstract: A discharge lamp for dielectrically impeded discharges, having a discharge vessel filled with a discharge medium and having discharge electrodes which are at least partly separated from the discharge medium by a dielectric layer, wherein the discharge vessel is elongated at least in a longitudinal direction, characterized by a thermal device for controlling the heat transport into and out of the lamp nonhomogeneously in the longitudinal direction, which is designed such that in operation, the temperature in the lamp is made homogeneous in the longitudinal direction.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: April 8, 2003
    Assignee: Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH
    Inventors: Frank Vollkommer, Lothar Hitzschke
  • Publication number: 20030060116
    Abstract: The invention relates to a novel method for producing discharge lamps, in which discharge vessels 5 are filled in a chamber 4 with the required gas filling at normal pressure.
    Type: Application
    Filed: September 25, 2002
    Publication date: March 27, 2003
    Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCHE GLUHLLAMPEN
    Inventors: Lothar Hitzschke, Frank Vollkommer
  • Patent number: 6531822
    Abstract: The invention relates to a flat reflector lamp for dielectrically inhibited discharges (14). Greater configuration flexibility is achieved in electrode design (11, 12) while simultaneously ensuring stability of the discharge vessel (1, 2) and preserving the possibility of minimum light reflection impairment by mounting the spacers (3) separated from the flat reflector frames (15) between the base plate (1) and the cover plate (2), the latter being arranged between the electrode strips (11, 12).
    Type: Grant
    Filed: October 19, 2000
    Date of Patent: March 11, 2003
    Assignee: Patent-Treuhand-Gesellschaft fuer elektrische Gluehlampen mbH
    Inventors: Frank Vollkommer, Lothar Hitzschke
  • Patent number: 6522082
    Abstract: A description is given of an operating method for a discharge lamp with dielectrically impeded discharges and also a corresponding ballast and illumination system. The invention is directed at withdrawing the external lamp voltage across the discharge lamp in order to produce a back ignition in the lamp by virtue of an internal counterpolarization. The back ignition improves the efficiency of the lamp operation and makes it possible to construct a very small, lightweight ballast.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: February 18, 2003
    Assignee: Patent-Treuhand-Gesellschaft fuer Elektrische Gluehlampen mbH
    Inventors: Klaus Wammes, Lothar Hitzschke, Frank Vollkommer
  • Patent number: 6483255
    Abstract: The description relates to gas-discharge lamps having electrode structures for dielectrically inhibited discharges, in which the electrodes are divided into separately operable groups for independently switchable operation.
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: November 19, 2002
    Assignee: Patent-Treuhand-Gesellschaft fuer Elektrische Gluehlampen mbH
    Inventors: Frank Vollkommer, Lothar Hitzschke, Simon Jerebic
  • Publication number: 20020163305
    Abstract: The invention relates to the capacitive modulation of the field distribution in a silent discharge lamp 1, by means of a structured, electrically conductive device 2 for definition of preferred locations for discharge structures in the lamp 1.
    Type: Application
    Filed: May 23, 2002
    Publication date: November 7, 2002
    Inventors: Lothar Hitzschke, Frank Vollkommer
  • Publication number: 20020163311
    Abstract: The invention relates to a silent discharge lamp in which support elements for supporting a top plate opposite a base plate are designed as a unipartite component of the top plate and have a tapering contour.
    Type: Application
    Filed: May 21, 2002
    Publication date: November 7, 2002
    Inventors: Lothar Hitzschke, Frank Vollkommer