Patents by Inventor Dieter Liebenthal

Dieter Liebenthal 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: 8066016
    Abstract: A hair styling device with a handle part, at least one heater part and two metallic molded parts that are preferably made of aluminum or an aluminum alloy and serve, in particular, for straightening, curling or waving hair. Hairs can be inserted between facing contact surfaces of the molded parts and the molded parts can be changed from an open state into a closed state. In order to ensure particularly good sliding properties for the hair, the invention proposes that the contact surfaces are at least regionally provided with an enamel coating.
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: November 29, 2011
    Assignee: Braun GmbH
    Inventors: Friedrich Henninger, Jürgen Seng, Dieter Liebenthal
  • Publication number: 20110162672
    Abstract: The present invention relates to a hair styling device, for example one that can be used for curling and straightening hair. Particularly, the invention relates to a hair styling device having a first styling part and a second styling part. such that the two styling parts are movable in relation to one another and hair can be placed between the two styling parts. at least one styling part having a hair guidance part and also having a grip part that is structurally different from the hair guidance part, wherein the hair guidance part has a row of convexities and concavities and the grip part has a row of convexities and concavities. and the hair guidance part and the grip part have a shared base area.
    Type: Application
    Filed: March 11, 2011
    Publication date: July 7, 2011
    Inventors: Dieter Liebenthal, Friedrich Henninger, Jürgen Seng
  • Publication number: 20080196739
    Abstract: A hair styling device with a handle part, at least one heater part and two metallic molded parts that are preferably made of aluminum or an aluminum alloy and serve, in particular, for straightening, curling or waving hair. Hairs can be inserted between facing contact surfaces of the molded parts and the molded parts can be changed from an open state into a closed state. In order to ensure particularly good sliding properties for the hair, the invention proposes that the contact surfaces are at least regionally provided with an enamel coating.
    Type: Application
    Filed: March 1, 2006
    Publication date: August 21, 2008
    Inventors: Friedrich Henninger, Jurgen Seng, Dieter Liebenthal
  • Patent number: 7325551
    Abstract: A hair-shaping appliance includes a hand-held portion, a hair-shaping element extending from the hand-held portion, an evaporator mounted within the shaping element, a tank mounted within the hair-shaping element in a moveable manner, a dosing device connected to the tank, and an actuating button connected to the tank. The actuating button and tank are connected such that movement of the actuating button displaces the tank along a longitudinal direction of the appliance (e.g., towards and away from the evaporator). In addition, the actuating button is positioned on the hand-held portion of the appliance and is positioned to allow single-handed operation.
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: February 5, 2008
    Assignee: Braun GmbH
    Inventors: Friedrich Henninger, Robert Jung, Dieter Liebenthal, Wilfried Rolf
  • Patent number: 6935332
    Abstract: Hair-care appliances such as curling tongs are provided. The hair care appliances include a heating device that is controlled in dependence on temperature by a thermostat adjacent to the heating device. The thermostat may be shielded thermally from the heating device by a partition wall.
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: August 30, 2005
    Assignee: Braun GmbH
    Inventors: Peter Janouch, Peter Lange, Dieter Liebenthal, Silvia Rix, Heinz Kern, Peter Ruppert, Friedrich Henninger, Jürgen Seng
  • Publication number: 20040244810
    Abstract: A hair-shaping appliance includes a hand-held portion, a hair-shaping element extending from the hand-held portion, an evaporator mounted within the shaping element, a tank mounted within the hair-shaping element in a moveable manner, a dosing device connected to the tank, and an actuating button connected to the tank. The actuating button and tank are connected such that movement of the actuating button displaces the tank along a longitudinal direction of the appliance (e.g., towards and away from the evaporator). In addition, the actuating button is positioned on the hand-held portion of the appliance and is positioned to allow single-handed operation.
    Type: Application
    Filed: April 28, 2004
    Publication date: December 9, 2004
    Inventors: Friedrich Henninger, Robert Jung, Dieter Liebenthal, Wilfried Rolf
  • Patent number: 6805552
    Abstract: A catalytic gas combustion device for an appliance for personal use with a gas supply device and a catalyst connected to the gas supply device is disclosed. To ignite the gas/air mixture and therefore to initiate catalytic combustion at the catalyst, an ignition device which can be controlled by an ignition system is provided. The gas supply device has a bypass for branching off part of a gas stream which flows onto the ignition device. In this way, the ignition system is actuated even shortly after the gas valve device is opened, and the catalyst is brought to its operating temperature as a result of the explosion of the gas/air mixture.
    Type: Grant
    Filed: November 26, 2002
    Date of Patent: October 19, 2004
    Assignee: Braun GmbH
    Inventors: Peter Janouch, Peter Lange, Dieter Liebenthal, Silvia Rix, Heinz Kern, Peter Ruppert, Friedrich Henninger, Jurgen Seng
  • Patent number: 6802320
    Abstract: Appliances for shaping hair are provided. The hair-shaping appliances may include, for example, (a) a forward and reverse stroke liquid dosing device; (b) a tubular drum constructed to contact the hair, the tubular drum having through-passages; and (c) an evaporating device comprising an evaporator chamber to which a liquid is delivered by the dosing device, the evaporating device being constructed to produce steam from the delivered liquid and to deliver the steam through the through-passages in the tubular drum to treat the hair. Excess liquid is removed from the evaporator chamber by a return stroke of the dosing device.
    Type: Grant
    Filed: September 9, 2002
    Date of Patent: October 12, 2004
    Assignee: Braun GmbH
    Inventors: Peter Janouch, Peter Lange, Dieter Liebenthal, Silvia Rix, Heinz Kern, Peter Ruppert, Friedrich Henninger, Jürgen Seng
  • Patent number: 6701937
    Abstract: Steam styling tongs including an evaporating device which is supplied with heat by a heating device and comprises an evaporator surface in thermal contact with the heating device. Liquid evaporates on the evaporator surface into steam, which then passes into a steam-distributor chamber and, there, flows outward via through-passages. The heating device is formed in a combustion chamber of the drum, in which, during the heating operation, flame-free combustion of a gas takes place by means of a catalyst, of which the combustion gases pass out via outlets formed in the drum or in the combustion chamber. The combustion chamber and the steam-distributor chamber are formed by a common chamber. Means which prevent water from penetrating into the common chamber are also provided.
    Type: Grant
    Filed: September 9, 2002
    Date of Patent: March 9, 2004
    Assignee: Braun GmbH
    Inventors: Peter Janouch, Peter Lange, Dieter Liebenthal, Silvia Rix, Heinz Kern, Peter Ruppert, Friedrich Henninger, Jürgen Seng
  • Publication number: 20030138750
    Abstract: A catalytic gas combustion device for an appliance for personal use with a gas supply device and a catalyst connected to the gas supply device is disclosed. To ignite the gas/air mixture and therefore to initiate catalytic combustion at the catalyst, an ignition device which can be controlled by an ignition system is provided. The gas supply device has a bypass for branching off part of a gas stream which flows onto the ignition device. In this way, the ignition system is actuated even shortly after the gas valve device is opened, and the catalyst is brought to its operating temperature as a result of the explosion of the gas/air mixture.
    Type: Application
    Filed: November 26, 2002
    Publication date: July 24, 2003
    Inventors: Peter Janouch, Peter Lange, Dieter Liebenthal, Silvia Rix, Heinz Kern, Peter Ruppert, Friedrich Henninger, Jurgen Seng
  • Publication number: 20030037795
    Abstract: The curling tongs (1) comprise a heating device (17), which is arranged in a tubular heating rod (25) and extends in the longitudinal direction of the heating rod (25). The curling tongs (1) further comprise a fuel container, for receiving and discharging liquid fuel, and a valve device (5), which serves for gasifying and regulating the fuel. The heating device (17) is controlled in dependence on temperature by a thermostat (6) adjacent to it. According to the invention, the thermostat is shielded thermally from the heating device (17) by a partition wall (49). As a result, the temperature behavior of the heating rod is better regulated, with excessively high temperature peaks being avoided.
    Type: Application
    Filed: September 9, 2002
    Publication date: February 27, 2003
    Inventors: Peter Janouch, Peter Lange, Dieter Liebenthal, Silvia Rix, Heinz Kern, Peter Ruppert, Friedrich Henniger, Jurgen Seng
  • Publication number: 20030037796
    Abstract: The invention relates to a hair-shaping appliance (1), in particular steam styling tongs, having a tubular drum (3) which treats the hair and is provided with through-passages (2). Projecting out of the drum (3) is a dosing device (26), upon the actuation of which liquid passes out of an outlet (18) of a liquid container (19) via a liquid-channeling device (17). Formed in the drum (3) is an evaporating device (13) which is supplied with heat by a heating device (12) and comprises an evaporator surface (16) which is in thermal contact with the heating device (12). Liquid which has passed out evaporates on the evaporator surface into steam, which then passes into the steam-distributor chamber (91) and, there, flows outward via the through-passages (2).
    Type: Application
    Filed: September 9, 2002
    Publication date: February 27, 2003
    Inventors: Peter Janouch, Peter Lange, Dieter Liebenthal, Silvia Rix, Heinz Kern, Peter Ruppert, Friedrich Henniger, Jurgen Seng
  • Publication number: 20030029854
    Abstract: The invention relates to a hair-styling appliance (1), in particular steam styling tongs, which has a tubular drum (3) which treats the hair, is provided with through-passages (2) and in which a heating device (12) and a dosing device (26) are formed. Upon actuation of the dosing device (26), liquid passes out of an outlet (18) of a liquid container (19) via a wick (17). An evaporating device (13) which is supplied with heat by the heating device (12) evaporates the liquid into steam, which then flows out at the through-passages (2) formed on the drum (3). The invention provides means (60, 19) by means of which, as a result of the actuation of the dosing device (26), excess liquid which may be present in the evaporator chamber (14), before the next actuation of the dosing device (26) in each case, is removed from the evaporator chamber (14) again and moved back into the liquid container (19). This arrangement only evaporates as much liquid as is desired by a user.
    Type: Application
    Filed: September 9, 2002
    Publication date: February 13, 2003
    Inventors: Peter Janouch, Peter Lange, Dieter Liebenthal, Silvia Rix, Heinz Kern, Peter Ruppert, Frederich Henniger, Jurgen Seng
  • Patent number: 6278086
    Abstract: A hair styling appliance includes a handle portion, a heating portion for heating the hair, and a holding member (1), with the latter being movable into an open and a closed condition. The hair can be placed in between the heating portion and the holding member (1) for styling. A pressure member (2) for exerting a pressure force on the hair is arranged between the heating portion and the holding member (1).
    Type: Grant
    Filed: April 12, 2000
    Date of Patent: August 21, 2001
    Assignee: Braum GmbH
    Inventors: Peter Janouch, Robert Jung, Dieter Liebenthal, Jürgen Seng
  • Patent number: 6003239
    Abstract: The invention is directed to an electrically powered device for the treatment of hair, in particular for the styling and/or drying of hair. This device is equipped with a first adapter element, for example, a plug-and-socket element, for connecting, in particular electrically, the device with an additional electrically powered device for the treatment of hair, which includes a second adapter element. In this arrangement, the first and second adapter elements include differentiating elements, in particular geometrical differentiating features, which are designed such that exclusively two devices equipped with corresponding differentiating elements are connectable with each other. The two connectable devices may be a hair dryer and an additional implement for a hair dryer, for example.
    Type: Grant
    Filed: August 19, 1997
    Date of Patent: December 21, 1999
    Assignee: Braun Gesellschaft mit beschraenkter Haftung (GmbH)
    Inventors: Dieter Liebenthal, Jurgen Behrendt, Ralf Dorber, Peter Janouch
  • Patent number: 5868146
    Abstract: The invention is directed to a hair styling appliance and a method of styling hair, using in particular the hair styling appliance. The hair styling appliance is comprised of a handle portion, a heating portion (6) for heating the hair, and a pressure-generating clamp (8) for the generation of a contact pressure acting on the hair to be styled, the hair being adapted to be introduced between the heating portion (6) and the pressure-generating clamp (8). In this arrangement, a styling edge (10) is provided in the area of the heating portion (6) and/or the pressure-generating clamp (8) of the appliance, which styling edge has a cross-section of arcuate, in particular circular-arc shape, of polygonal or similar shape.
    Type: Grant
    Filed: July 10, 1996
    Date of Patent: February 9, 1999
    Assignee: Braun Aktiengesellschaft
    Inventors: Friedrich Henninger, Peter Janouch, Dieter Liebenthal
  • Patent number: 5839451
    Abstract: The invention is directed to an implement for the treatment of hair, particularly for the styling and/or drying of hair, which is adapted to be connected with the air exit end of a personal-care appliance through which air flows, in particular of a hair dryer or a hot-air curling brush. The implement is comprised of a main body and at least one active body movable relative to the main body, for example a supporting structure carrying several hair pick-up elements. An electric drive mechanism, in particular an electric motor, is provided on the implement for moving the active body.
    Type: Grant
    Filed: December 19, 1996
    Date of Patent: November 24, 1998
    Assignee: Braun Aktiengesellschaft
    Inventors: Ralf Dorber, Dieter Liebenthal, Peter Janouch
  • Patent number: 5800154
    Abstract: The invention is directed to a gas-heatable appliance for personal use as, for example, a curling iron, a curling brush, a hair dryer, an epilating appliance, a domestic appliance, or the like, including a fuel gas reservoir, a combustion chamber, and a valve assembly disposed between the fuel gas reservoir and the combustion chamber for controlling and/or regulating the amount of fuel gas supplied, in particular in dependence upon temperature. There are further provided a valve housing (4) with a gas passageway (5, 15, 16) and a sealing element (6) associated with the gas passageway (5, 15, 16), as well as an actuator (7) for actuating the sealing element (6). The element is configured as a control member actuatable by a user and/or as a temperature-responsive actuator (7). In this arrangement, the sealing element (6) is actuated directly by the actuator (7).
    Type: Grant
    Filed: November 1, 1996
    Date of Patent: September 1, 1998
    Assignee: Braun Aktiengesellschaft
    Inventors: Friedrich Henninger, Dieter Liebenthal, Michael Stolper, Anne Tregoning Miller
  • Patent number: 5725159
    Abstract: The invention is directed to an air directing device for a hair dryer for acting upon the air stream exiting from the hair dryer, in which an air directing member (10) is configured as a substantially tubular body (12) having an inlet opening (14) and an outlet area (16) for the air. The air outlet area (16) comprises a plurality of individual orifices (18) configured and positioned such that the exiting air stream is split into a plurality of substantially independent free jets.
    Type: Grant
    Filed: January 19, 1996
    Date of Patent: March 10, 1998
    Assignee: Braun Aktiengesellschaft
    Inventors: Ralf Dorber, Dieter Liebenthal
  • Patent number: 5715847
    Abstract: The invention is directed to a hair styling implement adapted to be attached to an air outlet opening of a hair dryer and equipped with a housing and a plurality of hair pickup elements and an adjusting element that is movable relative to the housing. In this arrangement, at least one locking member is provided which is adapted to be located in at least two positions; in a first position, the adjusting member is lockable with the housing, and in a second position in which the hair styling implement is attached to the dryer, the housing is lockable with the hair dryer.
    Type: Grant
    Filed: December 15, 1995
    Date of Patent: February 10, 1998
    Assignee: Braun Aktiengesellschaft
    Inventors: Wilfried Rolf, Dieter Liebenthal