Patents by Inventor Arnd Hofmann
Arnd Hofmann 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).
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Publication number: 20220369432Abstract: The present invention relates to a support system (10) for an object, in particular for food (34) being treated. The support system (10) comprises an upper part (12) and a lower part (14). The upper part (12) includes a support plate (16) for bearing the object (34). The support system (10) comprises at least three guiding elements (20) and a guiding rail (22). The guiding elements (20) belong to one of the upper part (12) or the lower part (14), while the guiding rail (22) belongs to the other one of the upper part (12) or the lower part (14). The guiding rail (22) is formed as a circular ring and includes at least three identical segments. Each segment of the guiding rail (22) includes at least three horizontal sections arranged at different levels. The upper part (12) is rotatable with respect to the lower part (14) around a common vertical central axis. The guiding elements (20) are sliding along the guiding rail (22) during the rotation of the upper part (12) with respect to the lower part (14).Type: ApplicationFiled: June 23, 2020Publication date: November 17, 2022Inventors: Arnd HOFMANN, Klaus SCHLÖTTERER-FRATOIANNI
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Patent number: 11212883Abstract: A cooling system (12) for a cooking oven (10) is provided. The cooling system (12) has a first air path including a first suction area (28), at least one first fan (20) and a first air guidance (48) of a blowing-out area (30) connected in series. The cooling system (12) has a second air path including a second suction area, at least one second fan (22) and a second air guidance (50) of the blowing-out area (30) connected in series. The first suction area (28) is connected to an oven cavity (14) of the cooking oven (10) via an vapour outlet (32), so that the first air path is provided for conveying moist air. The second suction area is connected to the environment of the cooking oven (10), so that the second air path is provided for conveying dry air.Type: GrantFiled: May 10, 2017Date of Patent: December 28, 2021Assignee: Electrolux Appliances AktiebolagInventors: Arnd Hofmann, Klaus Schlötterer-Fratoianni
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Patent number: 11039509Abstract: An oven door for a microwave oven or a cooking oven with microwave heating functions includes at least one door cover (12) and at least one glass panel (14). The door cover (12) and the inner glass panel (14) form an inner part of the oven door. The door cover (12) and the glass panel (14) are connected by a welded joint (16). Said welded joint (16) is formed in an overlap of the door cover (12) and the glass panel (14). The welded joint (16) forms an elongated path.Type: GrantFiled: November 24, 2017Date of Patent: June 15, 2021Assignee: Electrolux Appliances AktiebolagInventors: Arnd Hofmann, Mario Weber
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Publication number: 20210140647Abstract: An assembly (10) for detecting operating parameters within an oven cavity (22) comprises: *(a) a housing (12); *(b) a sensor (14, 64) disposed within the housing (12); *(c) an air inlet (16) for feeding air into the housing (12); and *(d) an air outlet (18, 38) through which air can leave the housing (12).Type: ApplicationFiled: May 15, 2018Publication date: May 13, 2021Inventors: Klaus SCHLÖTTERER-FRATOIANNI, Arnd HOFMANN
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Publication number: 20200383180Abstract: The present invention relates to an oven door for a microwave oven or a cooking oven with microwave heating functions. The oven door comprises at least one door cover (12) and at least one glass panel (14). The door cover (12) and the inner glass panel (14) form an inner part of the oven door. The door cover (12) and the glass panel (14) are connected by a welded joint (16). Said welded joint (16) is formed in an overlap of the door cover (12) and the glass panel (14). The welded joint (16) forms an elongated path.Type: ApplicationFiled: November 24, 2017Publication date: December 3, 2020Inventors: Arnd HOFMANN, Mario WEBER
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Patent number: 10371388Abstract: The invention in particular is directed to an oven cavity (3) adapted to be used with a baking and/or steaming oven (1). The cavity (3) comprises several cavity walls (5, 6), wherein at least one load bearing wall section of at least one of the cavity walls (5, 6) is made in self-supporting configuration from at least one of a high temperature resistant polymer material and technical textile material.Type: GrantFiled: January 9, 2013Date of Patent: August 6, 2019Assignee: Electrolux Home Products Corporation N.V.Inventors: Arnd Hofmann, Fabienne Reinhard-Herrscher, Erhardt Koitzsch
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Publication number: 20190223261Abstract: The present invention relates to a cooling system (12) for a cooking oven (10). The cooling system (12) comprises a first air path including a first suction area (28), at least one first fan (20) and a first air guidance (48) of a blowing-out area (30) connected in series. The cooling system (12) comprises a second air path including a second suction area, at least one second fan (22) and a second air guidance (50) of the blowing-out area (30) connected in series. The first suction area (28) is connected to an oven cavity (14) of the cooking oven (10) via an vapour outlet (32), so that the first air path is provided for conveying moist air. The second suction area is connected to the environment of the cooking oven (10), so that the second air path is provided for conveying dry air.Type: ApplicationFiled: May 10, 2017Publication date: July 18, 2019Inventors: Arnd HOFMANN, Klaus SCHLÖTTERER-FRATOIANNI
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Patent number: 10301861Abstract: An actuation system for automatic actuation of at least one element covering an opening of a household appliance. The actuation system includes at least one actuation element constituted by at least one shape memory alloy element. The actuation system is adapted to actuate the element when applying heat to the actuation element.Type: GrantFiled: July 30, 2014Date of Patent: May 28, 2019Assignee: Electrolux Appliances AktibolagInventors: Arnd Hofmann, Fabienne Reinhard-Herrscher
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Patent number: 10203120Abstract: Baking oven insulation including at least a first insulating layer composed of a fiber material, and a metallic sheet material layer and a second insulating layer at least partially composed of a fiber material. The first and second insulating layers are located at opposite sides of the metallic sheet material layer. The first insulating layer is an inner layer to be arranged immediately at the outer side of a cavity wall of a baking oven and immediately at the inner side of the metallic sheet material layer. Moreover, the second insulating layer is an outer layer adapted to be spaced from the cavity wall of the baking oven. The first insulating layer has a thickness d1 which enables the first insulating layer to reduce the heat conduction from the cavity wall to the metallic sheet layer.Type: GrantFiled: October 31, 2014Date of Patent: February 12, 2019Assignee: Electrolux Appliances AktiebolagInventors: Arnd Hofmann, Fabienne Reinhard-Herrscher
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Patent number: 10149353Abstract: A microwave oven includes an oven muffle, a high-frequency oscillator for generating microwaves propagating within the oven muffle, an opening within the muffle wall of the oven muffle for passing a rotatable shaft of a motor through the muffle wall, and an element for suppressing microwave leakage through the opening. The element for suppressing microwave leakage is arranged at a distance to the muffle wall by a motor mounting element bearing the motor, such that there is no direct physical contact between the muffle wall and the suppression element.Type: GrantFiled: July 24, 2014Date of Patent: December 4, 2018Assignee: Electrolux Appliances AktiebolagInventors: Omar Houbloss, Arnd Hofmann, Michael Wittmann
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Patent number: 10009964Abstract: The present invention relates to an oven door for a microwave oven or for an oven with microwave heating function. The oven door includes a wave choke system formed as a door frame or within a door frame of the oven door. The wave choke system (20) encloses a see-through area of the oven door. The wave choke system includes a frame part and several wave choke elements. The frame part includes a base plate. The wave choke elements are fastened on the base plate (24). The base plate is arranged parallel to a main plane of the oven door. The wave choke elements are serially arranged along the frame part and at least partially enclose the see-through area of the oven door. The wave choke element is formed as a U-shaped metal stripe. The series of wave choke elements on the base plate form a wavelike ribbon. A notch is formed in the central portion of the wave choke element, so that the central portion of the wave choke element is smaller than the open end portion of the wave choke element.Type: GrantFiled: December 9, 2015Date of Patent: June 26, 2018Assignee: Electrolux Appliances AktiebolagInventors: Klaus Schlötterer-Fratoianni, Arnd Hofmann, Trevor Specht, Mario Weber
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Patent number: 10001848Abstract: The invention relates to an oven, especially to a domestic oven, which has a control panel comprising a user interface (1) for inputting data (D) into the control panel, wherein the user interface (1) comprises: at least one display element (2) for displaying data, wherein data (D) can be displayed on the display element (2) at a location (Z) on the display element (2) at a predetermined first axial position (x) and a predetermined second axial position (y), wherein the direction of the first (x) and of the second (y) axial positions are perpendicular to another, selecting means (3, 4) for selecting the location (Z) on the display element (2) by selecting or pretending a definite first (x) and second (y) position for a cursor (5), wherein at least one of the selecting means (3, 4) are established as a slider element extending in a longitudinal direction (L) and having a surface (6) sensitive for touching with a finger (7) of the user, wherein a control unit is arranged to position the cursor (5) in a positionType: GrantFiled: June 20, 2011Date of Patent: June 19, 2018Assignee: Electrolux Home Products Corporation N.V.Inventors: Jerome Brasseur, Arnd Hofmann, Petter Karlsson, Martin Knausenberger, Stefan Lehmann
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Patent number: 9907123Abstract: The present invention relates to a microwave sealing device of an opening for a rotating shaft (26) or axle. The sealing device (10; 30; 50) is provided for enclosing a section of the shaft (26) or axle. The sealing device (10; 30; 50) includes a front panel (12; 32; 52) and a basis part (14; 34; 54). The front panel (12; 32; 52) is formed as a plane disk and comprises a central hole (16; 36; 56) in its center and a plurality of cuts (20; 40; 58, 60). The basis part (14; 34; 54) is formed as a hollow part with a peripheral wall and two opposing face sides. At least one of the two opposing face sides of the basis part (14; 34; 54) is open. The basis part (14; 34; 54) comprises a plurality of cuts (22; 42; 62) in the peripheral wall. The front panel (12; 32; 52) is attached at the open face side or at one of the two open face sides, respectively, of the basis part (14; 34; 54).Type: GrantFiled: April 29, 2010Date of Patent: February 27, 2018Assignee: Electrolux Home Products Corporation N.V.Inventors: Arnd Hofmann, Norbert Danzer, Abdel-Ilah Zbat
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Patent number: 9898169Abstract: On-screen help with contextual shortcut on an appliance The invention relates to an appliance (100) with a user interface (110) comprising a display (111) for showing indications about conditions in the appliance, and first (112, 114) and second (113) touch-sensitive input means. The second input means causes the interface to enter an assistance mode displaying which assistance items, which a processing means (121) extracts from a collection (122) of assistance information based on the content of the display when the assistance mode is invoked. In one embodiment, a data record ensures that the user returns to the same page after consulting the assistance mode. In another embodiment, the appliance is adapted to update the collection of assistance information on the basis of data received at an external communication interface. In another embodiment, the display reacts differently to short and long activations of a given touch-sensitive input means.Type: GrantFiled: October 13, 2011Date of Patent: February 20, 2018Assignee: Electrolux Home Products Corporation N.V.Inventors: Jerome Brasseur, Petter Karlsson, Martin Knausenberger, Arnd Hofmann
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Publication number: 20180020511Abstract: The present invention relates to an oven door (12) for a microwave oven (10) or for an oven with microwave heating function. The oven door (12) comprises a wave choke system (20) formed as or within a door frame of said oven door (12). The wave choke system (20) encloses a see-through area of the oven door (12). The wave choke system (20) includes a frame part (22) and a plurality of wave choke elements (26). The frame part (22) includes a base plate (24), on which the wave choke elements (26) are fastened. The base plate (24) is arranged parallel to a main plane of the oven door (12). The wave choke elements (26) are serially arranged along the frame part (22) and enclose at least partially the see-through area of the oven door (12). The wave choke element (26) is formed as a U-shaped metal stripe. The series of wave choke elements (26) on the base plate (24) form a wavelike ribbon.Type: ApplicationFiled: December 9, 2015Publication date: January 18, 2018Inventors: Klaus SCHLÖTTERER-FRATOIANNI, Arnd HOFMANN, Trevor SPECHT, Mario WEBER
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Patent number: 9750088Abstract: An oven door for a microwave oven or an appliance with microwave heating function. The door includes a door frame enclosing the door and glass panels inside and/or in front of the frame. The frame includes a wave choke arranged between a support element and a cover element. The cover element is fixed or fixable at the support element and forms an outer portion of an inner side of the oven door. The cover element is made of a high temperature resistant non-metallic material and covers an outer portion of an inner side of an inner glass panel. The inner glass panel is clamped between the cover element and the support element and/or the wave choke. A sealing element made of a high temperature resistant textile material is arranged between the cover element and the inner glass panel. A corresponding chassis is provided for the oven or the appliance.Type: GrantFiled: January 27, 2014Date of Patent: August 29, 2017Assignee: Electrolux Home Products Corporation N. V.Inventors: Arnd Hofmann, Klaus Schlotterer-Fratoianni
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Publication number: 20170058567Abstract: A locking device for a door of a domestic appliance, wherein—the locking device comprises a main body (10),—the locking device comprises a locking bar element (14) supported pivoting in and/or at the main body (10),—the locking bar element (14) is pivoting between an engaged position and a disengaged position,—the locking bar element (14) is engageable and disengageable with a corresponding counterpart,—the locking device comprises a shape memory wire (26),—the locking device comprises at least one means (18, 20) for supplying the shape memory wire (26) with electric current,—the electric current through the shape memory wire (26) effects a movement of the locking bar element (14) to the disengaged position,—the locking device comprises a return spring element (30) interconnected between the locking bar element (14) and the main body (10), and—the return spring element (30) effects a movement of the locking bar element (14) to the engaged position, wherein the shape memory wire (26) extends lineally and conneType: ApplicationFiled: March 13, 2015Publication date: March 2, 2017Inventors: Branko Ivanovic, Dietmar Hildner, Arnd Hofmann, Fabienne Reinhard-Herrscher
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Patent number: 9549438Abstract: The present invention relates to a microwave oven with at least one wave choke system. A front frame (12) encloses a front portion of a cavity wall (24) of an oven cavity (10) along a circumferential direction. An oven door (14) is provided to cover front sides of the oven cavity (10) and front sides of the cavity wall (24) completely and the front frame (12) at least partially in a closed state of said oven door (14). A first gap (16) is formed between the inner side of the oven door (14) on the one hand and front sides both of the front frame (12) and the cavity wall (24) on the other hand. A second gap (18) is formed between the front portions of the front frame (12) and the cavity wall (24). The cross-section of the second gap (18) extends perpendicularly to the cross-section of the first gap (16). A wave choke system is arranged within the second gap (18). The wave choke system comprises a plurality of choke members (26) and a counter part (28).Type: GrantFiled: May 10, 2010Date of Patent: January 17, 2017Assignee: ELECTROLUX HOME PRODUCTS CORPORATION N.V.Inventors: Arnd Hofmann, Abdel-Ilah Zbat
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Publication number: 20160223207Abstract: Baking oven insulation (1), comprising at least a first insulating layer (2) composed of a fibre material, a metallic sheet material layer (3) and a second insulating layer (4) at least partially composed of a fibre material, wherein the first and second insulating layers (2, 4) are located at opposite sides of the metallic sheet material layer (3), wherein the first insulating layer (2) is an inner layer to be arranged immediately at the outer side of a cavity wall (12) of a baking oven (10) and immediately at the inner side of the metallic sheet material layer, and the second insulating layer (4) is an outer layer adapted to be spaced from the cavity wall (12) of the baking oven (1) wherein the first insulating layer (2) comprises a thickness d which enables the metallic sheet material layer to efficiently reflect the thermal radiation from the cavity wall and which enables the first insulating layer to reduce the heat conduction from the cavity wall to the metallic sheet layer (3).Type: ApplicationFiled: October 31, 2014Publication date: August 4, 2016Inventors: Arnd Hofmann, Fabienne Reinhard-Herrscher
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Publication number: 20160219657Abstract: The present invention relates to a gasket (10) for a heat-charged cavity of an appliance with microwave heating function. The gasket (12) comprises a first gasket part (12), a second gasket part (14) and an interconnecting gasket part (16). The first gasket part (12), the second gasket part (14) and the interconnecting gasket part (16) are elongated and their longitudinal axes are arranged parallel to each other. The first gasket part (12) and the second gasket part (14) are impermeable for steam, vapour and/or humidity. The first gasket part (12) is made of an elastic material or a compound of elastic materials and is resistant against high temperatures. The second gasket part (14) is resistant against high temperatures and includes at least on electrically conductive material. The interconnecting gasket part (16) is resistant against high temperatures.Type: ApplicationFiled: October 13, 2014Publication date: July 28, 2016Inventors: Arnd Hofmann, Klaus Schlötter-Er-Fratoianni