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).

  • Patent number: 9821626
    Abstract: A heating, ventilation and/or air-conditioning apparatus (1) for the passenger compartment of a motor vehicle includes a housing (2) comprising a first air inlet (3) and a second air inlet (4). The housing (2) directs an inner air flow (Fi) from the first air inlet (3) and/or the second air inlet (4) and contains at least a first heat exchanger (5). The housing (2) includes: an air flow channel (24) directing the inner air flow (Fi) in the housing (2) while bypassing the first heat exchanger (5); and an air inlet duct (23) directing the inner air flow (Fi) in the housing (2) through the first heat exchanger (5). A heating, ventilation and/or air-conditioning installation for the passenger compartment of a motor vehicle includes: an air conditioning loop through which a coolant flows. The loop includes at least one compressor, a first expansion member, an outer heat exchanger and the first heat exchanger (5). The installation also includes the heating, ventilation and/or air-conditioning apparatus (1).
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: November 21, 2017
    Assignee: VALEO SYSTEMES THERMIQUES
    Inventors: Klaus Wittmann, Mohamed Yahia
  • Patent number: 9803896
    Abstract: The present invention relates to a heat conditioning system for a motor vehicle, including: an air conditioning loop of a motor vehicle (B) in which a cooling fluid circulates and which includes a compressor (2), at least two heat exchangers (8,42) and at least one decompression device (24,26), a heat processing unit (U) of a battery (100) of the vehicle, which unit includes a heat processing means (46) which is capable of being in a heat exchange relation with the battery of the vehicle, in which the heat processing means is in a heat exchange relation with the air conditioning loop.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: October 31, 2017
    Assignee: VALEO SYSTEMES THERMIQUES
    Inventors: Jugurtha Benouali, Klaus Wittmann, Stefan Karl
  • Publication number: 20140194048
    Abstract: A heating, ventilation and/or air-conditioning apparatus (1) for the passenger compartment of a motor vehicle includes a housing (2) comprising a first air inlet (3) and a second air inlet (4). The housing (2) directs an inner air flow (Fi) from the first air inlet (3) and/or the second air inlet (4) and contains at least a first heat exchanger (5). The housing (2) includes: an air flow channel (24) directing the inner air flow (Fi) in the housing (2) while bypassing the first heat exchanger (5); and an air inlet duct (23) directing the inner air flow (Fi) in the housing (2) through the first heat exchanger (5). A heating, ventilation and/or air-conditioning installation for the passenger compartment of a motor vehicle includes: an air conditioning loop through which a coolant flows. The loop includes at least one compressor, a first expansion member, an outer heat exchanger and the first heat exchanger (5). The installation also includes the heating, ventilation and/or air-conditioning apparatus (1).
    Type: Application
    Filed: May 4, 2012
    Publication date: July 10, 2014
    Applicant: Valeo Systemes Thermiques
    Inventors: Klaus Wittmann, Mohamed Yahia
  • Patent number: 8516841
    Abstract: A heating and air conditioning device 20 for an automotive vehicle, including 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. 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: Grant
    Filed: April 17, 2009
    Date of Patent: August 27, 2013
    Assignee: Valeo Systems Thermiques
    Inventors: Klaus Wittmann, Daniel Neveu, Jean Luc Thuez, Didier Barat
  • Publication number: 20130146251
    Abstract: The present invention relates to a heat conditioning system for a motor vehicle, including: an air conditioning loop of a motor vehicle (B) in which a cooling fluid circulates and which includes a compressor (2), at least two heat exchangers (8,42) and at least one decompression device (24,26), a heat processing unit (U) of a battery (100) of the vehicle, which unit includes a heat processing means (46) which is capable of being in a heat exchange relation with the battery of the vehicle, in which the heat processing means is in a heat exchange relation with the air conditioning loop.
    Type: Application
    Filed: June 14, 2011
    Publication date: June 13, 2013
    Applicant: VALEO SYSTEMES THERMIQUES
    Inventors: Jugurtha Benouali, Klaus Wittmann, Stefan Karl
  • Publication number: 20120300483
    Abstract: A luminaire assembly, in particular a bi-halogen headlight for a motor vehicle, having at least one light source, which has at least two lighting functions, characterized in that the light source has a different operating voltage in each case with regard to the at least two lighting functions.
    Type: Application
    Filed: January 17, 2011
    Publication date: November 29, 2012
    Applicant: OSRAM AG
    Inventors: Peter Helbig, Oliver Hering, Harald Kaps, Klaus Wittmann
  • Patent number: 8212476
    Abstract: Disclosed are a welding aid for a spiral-wound filament of a lamp and a lamp comprising such a welding aid. The spiral-wound filament has a spiral-wound filament body and at least one spiral-wound filament tail. The welding aid is arranged at a distance d from the spiral-wound filament body and is designed to connect the at least one spiral-wound filament tail to a current-conducting support, the distance d being defined in accordance with a power P at which the lamp is operated.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: July 3, 2012
    Assignee: Osram AG
    Inventors: Frank Auer, Gerhard Behr, Peter Helbig, Christian Seichter, Klaus Wittmann, Sascha Zelt
  • Patent number: 8188658
    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: Grant
    Filed: December 10, 2007
    Date of Patent: May 29, 2012
    Assignee: Osram AG
    Inventors: Frank Auer, Gerhard Behr, Peter Helbig, Christian Seichter, Klaus Wittmann, Sascha Zelt
  • Patent number: 8164240
    Abstract: The invention relates to a dipping cap comprising a filament for a dual-filament lamp. The dimension between an outlet of an outgoing section of the filament, on the side of the base, and the point on the outgoing section of the filament, arranged opposite the outgoing section of the filament on the side of the base and welded to the dipping cap, measures more than approximately 5.2 mm and less than 9.7 mm, and the dimension between the outlet of the outgoing section of the filament, on the side of the base, and the front surface of the dipping cap, which is adjacent to the outgoing section of the filament, welded to the dipping cap, measures more than approximately 5.9 mm and less than 11.9 mm.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: April 24, 2012
    Assignee: Osram AG
    Inventors: Frank Auer, Gerhard Behr, Peter Helbig, Christian Seichter, Klaus Wittmann, Sascha Zelt
  • Patent number: 8102109
    Abstract: Disclosed is a lamp, particularly a halogen incandescent lamp, comprising a bulb that is provided with a pinch seal which is inserted into a base by means of an attachment ring. The attachment ring has a receiving section within which the pinch seal is clampingly fastened by means of attachment ring brackets that are supported on support surfaces. According to the invention, the support surfaces are placed at an angle from the longitudinal axis of the lamp.
    Type: Grant
    Filed: December 6, 2007
    Date of Patent: January 24, 2012
    Assignee: OSRAM AG
    Inventors: Frank Auer, Gerhard Behr, Peter Helbig, Christian Seichter, Klaus Wittmann, Sascha Zelt
  • Patent number: 8084928
    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: Grant
    Filed: November 8, 2007
    Date of Patent: December 27, 2011
    Assignee: Osram AG
    Inventors: Frank Auer, Gerhard Behr, Peter Helbig, Christian Seichter, Klaus Wittmann, Sascha Zelt
  • Patent number: 8011798
    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: Grant
    Filed: February 12, 2008
    Date of Patent: September 6, 2011
    Assignee: OSRAM Gesellschaft mit beschränkter Haftung
    Inventors: Manfred Bühler, Hans Mayer, Klaus Wittmann, Sascha Zelt
  • Publication number: 20110146318
    Abstract: The invention relates to an air conditioning device (1) comprising elements (15,16,13,14,19,22,P1,P2;17) of an A/C loop (4) inside which circulates a cooling fluid FR, of a primary circuit (5) inside which circulates a coolant fluid FC and of a secondary circuit (6) inside which circulates a coolant liquid LC. The air conditioning device (1) comprises a support (100) on which the elements (15,16,13,14,19,22,P1,P2;17) are fixed.
    Type: Application
    Filed: December 15, 2010
    Publication date: June 23, 2011
    Inventors: Klaus WITTMANN, Mohamed YAHIA, Bertrand NICOLAS
  • Publication number: 20110146942
    Abstract: The invention relates to a distribution unit (22) that is able to manage the circulation of a cooling fluid FR in an A/C loop (4). The distribution unit (22) comprises nine inlets E1, E2, E3, E4, E5, E6, E7, E8, E9 of the cooling fluid FR inside the distribution unit (22) and four outlets S1, S2, S3, S4 of the cooling fluid FR outside the distribution unit (22). Each outlet S1, S2, S3, S4 is linked with at least two inlets E1, E2, E3, E4, E5, E6, E7, E8, E9.
    Type: Application
    Filed: December 15, 2010
    Publication date: June 23, 2011
    Inventors: Klaus WITTMANN, Mohamed YAHIA, Bertrand NICOLAS
  • Publication number: 20100320900
    Abstract: Disclosed are a welding aid for a spiral-wound filament of a lamp and a lamp comprising such a welding aid. The spiral-wound filament has a spiral-wound filament body and at least one spiral-wound filament tail. The welding aid is arranged at a distance d from the spiral-wound filament body and is designed to connect the at least one spiral-wound filament tail to a current-conducting support, the distance d being defined in accordance with a power P at which the lamp is operated.
    Type: Application
    Filed: December 5, 2007
    Publication date: December 23, 2010
    Inventors: Frank Auer, Gerhard Behr, Peter Helbig, Christian Seichter, Klaus Wittmann, Sascha Zelt
  • Publication number: 20100296216
    Abstract: The disclosure relates to a protective device, for example an overload relay, for attaching the same to a switching device, such as a contactor. The housing wall of the protective device has at least one first and one second recess each on a first side facing the switching device, and on a second side facing away from the switching device, and the recesses are connected to each other such that the switching device is accessible through the recesses for the purpose of connecting a terminal lead.
    Type: Application
    Filed: June 21, 2010
    Publication date: November 25, 2010
    Applicant: ABB AG
    Inventors: Ruediger SCHWEITZER, Richard Kommert, Klaus Wittmann
  • Patent number: 7830076
    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: Grant
    Filed: September 9, 2006
    Date of Patent: November 9, 2010
    Assignee: Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH
    Inventors: Klaus Wittmann, Sascha Zelt
  • Publication number: 20100090578
    Abstract: The invention relates to a dipping cap comprising a filament for a dual-filament lamp. The dimension between an outlet of an outgoing section of the filament, on the side of the base, and the point on the outgoing section of the filament, arranged opposite the outgoing section of the filament on the side of the base and welded to the dipping cap, measures more than approximately 5.2 mm and less than 9.7 mm, and the dimension between the outlet of the outgoing section of the filament, on the side of the base, and the front surface of the dipping cap, which is adjacent to the outgoing section of the filament, welded to the dipping cap, measures more than approximately 5.9 mm and less than 11.9 mm.
    Type: Application
    Filed: December 5, 2007
    Publication date: April 15, 2010
    Applicant: OSRAM GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
    Inventors: Frank Auer, Gerhard Behr, Peter Helbig, Christian Seichter, Klaus Wittmann, Sascha Zelt
  • Publication number: 20100090598
    Abstract: Disclosed is a lamp, particularly a halogen incandescent lamp, comprising a bulb that is provided with a pinch seal which is inserted into a base by means of an attachment ring. The attachment ring has a receiving section within which the pinch seal is clampingly fastened by means of attachment ring brackets that are supported on support surfaces. According to the invention, the support surfaces are placed at an angle from the longitudinal axis of the lamp.
    Type: Application
    Filed: December 6, 2007
    Publication date: April 15, 2010
    Applicant: OSRAM Gesellschaft mit beschraenkter Haftung
    Inventors: Frank Auer, Gerhard Behr, Peter Helbig, Christian Seichter, Klaus Wittmann, Sascha Zelt
  • Publication number: 20100067247
    Abstract: The invention relates to a shield device for a headlamp, said device having a reflector with an opening that has a diameter of less than 38.2 mm and two luminous bodies. The shield device is designed in such a way that at least one boundary of the sector shielded by the shield device on the reflector in the vicinity of the opening, said sector lying on a straight line between the reflector opening and a circle around the reflector opening with a diameter of 38.2 mm, when viewed on a plane running parallel to the reflector opening.
    Type: Application
    Filed: December 12, 2007
    Publication date: March 18, 2010
    Inventors: Frank Auer, Gerhard Behr, Peter Helbig, Christian Seichter, Klaus Wittmann, Sascha Zelt