Patents by Inventor Klaus Wittmann

Klaus Wittmann 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: 20100060161
    Abstract: The invention relates to a halogen incandescent lamp for motor vehicle headlamps with two incandescent filaments (21, 22), which are arranged within a lamp vessel (10), wherein a first incandescent filament (21) is designed for operation with a higher electrical power than the second incandescent filament (22), wherein the incandescent filaments (21, 22) are constructed in such a way that their dimensions and/or their geometry are in each case matched to an operating voltage of at least 20 volts, and at least the second incandescent filament (22) is an incandescent filament in the form of a single coil. Preferably, both incandescent filaments (21, 22) are in the form of incandescent filaments with a single coil, wherein the first incandescent filament (21) is used, for example, for producing the upper beam or lower beam and the second incandescent filament (22) is used for producing the daytime driving light or foglight.
    Type: Application
    Filed: January 12, 2008
    Publication date: March 11, 2010
    Inventors: Manfred Büehler, Hans Mayer, Klaus Wittmann, Sascha Zeit
  • Publication number: 20100060160
    Abstract: The invention relates to a halogen bulb comprising two filaments that are located (21, 22) in a lamp body (10), a first filament (21) being designed for operation at a higher electrical output than the second filament (22). To fulfil a daylight driving function, the second filament (22) is designed to produce an electrical output that is lower by a factor of 2.5 to 4 than the electrical output of the first filament (21) when operating with a standard operating voltage and is designed in such a way that it can be operated with an operating voltage that is lower than the standard operating voltage in order to produce a dimmed position light function.
    Type: Application
    Filed: November 8, 2007
    Publication date: March 11, 2010
    Inventors: Frank Auer, Gerhard Behr, Peter Helbig, Christian Seichter, Klaus Wittmann, Sascha Zelt
  • Publication number: 20100039017
    Abstract: Disclosed is a lamp, particularly for a vehicle headlight, comprising two spiral-wound filaments which are retained by three feeders within a bulb that is inserted into a base. The feeders are arranged on top of one another when the lamp is adequately oriented. A tail of the first spiral-wound filament is connected to a dimming cap, said tail being located at a distance from the base, while a tail of the second spiral-wound filament is connected to the central feeder, said tail being close to the base. The second filament tail that faces away and is located at a distance from the base is connected to the upper feeder. According to the invention, the lower feeder is connected to the dimming cap by means of an end, some sections of which are angled away from a longitudinal axis of the lamp.
    Type: Application
    Filed: December 10, 2007
    Publication date: February 18, 2010
    Inventors: Frank Auer, Gerhard Behr, Peter Helbig, Christian Seichter, Klaus Wittmann, Sascha Zelt
  • Publication number: 20090260386
    Abstract: A heating and air conditioning device 20 for an automotive vehicle, comprising a refrigerant circuit 4 in which a refrigerant circulates between three distinctive units 6, 10, 14 exchanging with respective secondary liquid loops 8, 12, 16, wherein: an evaporating unit 6 is dedicated to the evaporation of the refrigerant when operating in a cooling mode, a cooling unit 10 is dedicated to the cooling or condensation of the refrigerant when operating in the cooling mode as well as operating in the heating mode, a reversible unit 14 is dedicated to the evaporation of the refrigerant when operating in the heating mode and dedicated to the cooling or condensation of the refrigerant when operating in the cooling mode.
    Type: Application
    Filed: April 17, 2009
    Publication date: October 22, 2009
    Inventors: Klaus WITTMANN, Daniel NEVEU, Jean Luc THUEZ, Didier BARAT
  • Patent number: 7456558
    Abstract: The invention relates to an electric incandescent lamp, in particular a vehicle headlight, having at least one incandescent filament which is arranged within a light-permeable lamp vessel, the at least one incandescent filament having different pitch factors at its two ends. In order to increase the luminance at the light/dark boundary of the lower beam, that end of the incandescent filament which is near to the base has a lower pitch factor.
    Type: Grant
    Filed: August 2, 2005
    Date of Patent: November 25, 2008
    Assignee: Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH
    Inventors: Manfred Bühler, Klaus Wittmann
  • Publication number: 20080164813
    Abstract: The invention relates to an incandescent halogen lamp, comprising at least one tungsten incandescent filament (3) in a transparent light bulb (1) and a filling in the light bulb (1), which has a halogen component for a halogen recycling process and a noble gas component containing krypton or xenon, whereby the noble gas component comprises at least one further noble gas, the atoms of which have a smaller atomic radius than krypton atoms and the cold filling pressure within the light bulb (1) is greater than or equal to 0.7 Megapascal. Said incandescent halogen lamp is suitable as light source in a curved lamp or as combined day running or position light in a motor vehicle.
    Type: Application
    Filed: September 9, 2006
    Publication date: July 10, 2008
    Inventors: Klaus Wittmann, Sascha Zelt
  • Publication number: 20060091775
    Abstract: A vehicle headlamp has a first incandescent filament, which is preferably used to generate a main beam, and a second incandescent filament, which is preferably used to generate daytime running light, the incandescent filaments being fixed within a lamp vessel—which is provided with a lamp base—using three supply lead wires, which are arranged in a common plane, with the result that they are arranged one above the other when the vehicle headlamp is suitably oriented, the bottom supply lead wire and the top supply lead wire being used to fix the first incandescent filament and the top supply lead wire and the middle supply lead wire being used to arrange the second incandescent filament such that it is offset in a parallel manner with respect to the axis of the first incandescent filament and is above the axis of the first incandescent filament.
    Type: Application
    Filed: October 27, 2005
    Publication date: May 4, 2006
    Applicant: PATENT-TREUHAND-GESELLSCHAFT FÜR ELEKTRISCH GLÜHLAMPEN MBH
    Inventors: Frank Auer, Klaus Wittmann, Sascha Zelt
  • Publication number: 20060038471
    Abstract: The invention relates to an electric incandescent lamp, in particular a vehicle headlight lamp, having at least one frustoconical incandescent filament (2) which is arranged inside a transparent lamp vessel (10) and whose outside diameter increases continuously, starting from a minimum value at a first incandescent filament end (23), up to a maximum value at the second incandescent filament end (24), the following condition being fulfilled: D2 - D1 2 · L ? 0.0875 for the minimum value D1 and the maximum value D2 as well as for the length L of the at least one incandescent filament (2).
    Type: Application
    Filed: August 5, 2005
    Publication date: February 23, 2006
    Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCH GLUHLAMPEN MBH
    Inventors: Manfred Buhler, Klaus Wittmann
  • Publication number: 20060038489
    Abstract: The invention relates to an electric incandescent lamp, in particular a vehicle headlight, having at least one incandescent filament which is arranged within a light-permeable lamp vessel, the at least one incandescent filament having different pitch factors at its two ends. In order to increase the luminance at the light/dark boundary of the lower beam, that end of the incandescent filament which is near to the base has a lower pitch factor.
    Type: Application
    Filed: August 2, 2005
    Publication date: February 23, 2006
    Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCH GLUHLAMPEN MBH
    Inventors: Manfred Buhler, Klaus Wittmann
  • Publication number: 20050162091
    Abstract: The invention relates to an electric incandescent lamp, in particular a vehicle headlight lamp having at least one incandescent filament arranged within a lamp vessel and power supply lines for the incandescent filament, at least one power supply line having a bent-back end, which is connected to an outgoing filament line, which extends transversely to the winding axis of the at least one incandescent filament, of the at least one incandescent filament. According to the invention, the bent-back end of the power supply line and the outgoing filament line of the at least one incandescent filament are arranged on a plane transverse to the winding axis of the at least one incandescent filament, in order to be able to compensate for so-called over- or under-winding during the manufacturing process of the at least one incandescent filament.
    Type: Application
    Filed: January 14, 2005
    Publication date: July 28, 2005
    Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCH GLUHLAMPEN MBH
    Inventors: Christian Seichter, Klaus Wittmann
  • Publication number: 20050128763
    Abstract: An incandescent lamp for vehicle headlights has at least one incandescent filament and a shading apparatus for the at least one incandescent filament, which are both arranged in a lamp vessel. The shading apparatus has a tab in the form of a hook which is integrally formed on an edge, which runs transversely to the filament axis of the at least one incandescent filament, of the shading apparatus and which is connected to an outgoing filament line of the at least one incandescent filament.
    Type: Application
    Filed: December 8, 2004
    Publication date: June 16, 2005
    Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCHE GLUHLAMPEN MBH
    Inventors: Christian Seichter, Klaus Wittmann
  • Patent number: 6879102
    Abstract: The invention relates to an incandescent lamp for motor vehicle headlights, having at least one incandescent filament (2) arranged inside the lamp vessel, and a shading device (4). A coil exit (2a) of the incandescent filament (2) is joined to an edge section (41) of the shading device (4) running substantially parallel to the coil axis, in order to ensure an improved suspension of the incandescent filament (2).
    Type: Grant
    Filed: May 1, 2003
    Date of Patent: April 12, 2005
    Assignee: Patent-Treuhand-Gesellschaft fuer elektrische Gluehlampen mbH
    Inventors: Gerhard Behr, Manfred Bühler, Christian Seichter, Klaus Wittmann
  • Patent number: 6822392
    Abstract: The invention relates to an incandescent lamp for a motor vehicle headlight. The secondary filament (2) is arranged in such a way that, in a projection plane that is arranged perpendicular to the reference plane (B), the edge (2a), facing the antidazzle device (4), of the image, projected onto the projection plane, of the second incandescent filament (2) is arranged over the entire length of the second incandescent filament (2) between the reference axis (A) and the antidazzle device (4), and the edge (2a), facing the antidazzle device (4), of the image, projected to the scale 1:1 onto the projection plane, of the second incandescent filament (2) has a prescribed spacing from the reference axis (A). It is thereby possible to produce the light/dark boundary for the lower beam with the aid of the edge (2a) of the secondary filament image (2).
    Type: Grant
    Filed: April 8, 2003
    Date of Patent: November 23, 2004
    Assignee: Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH
    Inventors: Gerhard Behr, Manfred Bühler, Christian Seichter, Klaus Wittmann
  • Publication number: 20040160181
    Abstract: The invention relates to an incandescent lamp for vehicle headlights, the incandescent lamp having at least one incandescent filament and a shading apparatus for the at least one incandescent filament, which are both arranged in a lamp vessel, and having power supply lines for the at least one incandescent filament, a first power supply line being connected to the shading apparatus. The abovementioned power supply line has a bent-back end, which is connected to an outgoing filament line of the at least one incandescent filament.
    Type: Application
    Filed: February 5, 2004
    Publication date: August 19, 2004
    Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCH GLUHLAMPEN MBH
    Inventors: Christian Seichter, Klaus Wittmann
  • Publication number: 20030205972
    Abstract: The invention relates to an incandescent lamp for motor vehicle headlights, having at least one incandescent filament (2) arranged inside the lamp vessel, and a shading device (4). A coil exit (2a) of the incandescent filament (2) is joined to an edge section (41) of the shading device (4) running substantially parallel to the coil axis, in order to ensure an improved suspension of the incandescent filament (2).
    Type: Application
    Filed: May 1, 2003
    Publication date: November 6, 2003
    Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCH GLUHLAMPEN MBH
    Inventors: Gerhard Behr, Manfred Buhler, Christian Seichter, Klaus Wittmann
  • Publication number: 20030189404
    Abstract: The invention relates to an incandescent lamp for a motor vehicle headlight. The secondary filament (2) is arranged in such a way that, in a projection plane that is arranged perpendicular to the reference plane (B), the edge (2a), facing the antidazzle device (4), of the image, projected onto the projection plane, of the second incandescent filament (2) is arranged over the entire length of the second incandescent filament (2) between the reference axis (A) and the antidazzle device (4), and the edge (2a), facing the antidazzle device (4), of the image, projected to the scale 1:1 onto the projection plane, of the second incandescent filament (2) has a prescribed spacing from the reference axis (A). It is thereby possible to produce the light/dark boundary for the lower beam with the aid of the edge (2a) of the secondary filament image (2).
    Type: Application
    Filed: April 8, 2003
    Publication date: October 9, 2003
    Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCH GLUHLAMPEN MBH
    Inventors: Gerhard Behr, Manfred Buhler, Christian Seichter, Klaus Wittmann
  • Publication number: 20020135301
    Abstract: The invention relates to a halogen lamp for motor vehicle headlights which has an electrical power consumption of between 50 watts and 100 watts and has at least one incandescent filament, the at least one incandescent filament (5) being formed according to the invention as a single coil, the dimensions and/or geometry of which are matched to an operating voltage of at least 20 volts, the length of the single coil being restricted to a range from 4.0 mm to 6.5 mm.
    Type: Application
    Filed: February 12, 2002
    Publication date: September 26, 2002
    Inventors: Klaus-Peter Knorr, Klaus Wittmann
  • Patent number: 4179022
    Abstract: Shiftable L-shaped guide tracks are provided perpendicular of the direction of conveyance of the conveyor belt in an installation for introducing containers sequentially into several tracks disposed in parallel side-by-side fashion.
    Type: Grant
    Filed: August 23, 1977
    Date of Patent: December 18, 1979
    Assignee: NUTRO Patentverwertungs- und Maschinenhandels-GmbH
    Inventors: Diethelm W. K. Grocke, Klaus Wittmann