Patents by Inventor Marc Fraas
Marc Fraas 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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Patent number: 11964538Abstract: A ventilation device may include first and second supply ducts, a mixing section having a mixing duct into which the first and second supply ducts may lead, the first and second supply ducts arranged in the mixing section adjacent one another in a transverse direction, and first and second guides in the mixing section each running in the transverse direction and being located opposite one another in a longitudinal direction running transversely to the transverse direction, each guide having two guide walls running in the transverse direction and located opposite one another in a height direction running transversely to the transverse direction and longitudinal direction, at least one of the guide walls sloping away from the other guide wall at a slope angle with respect to the longitudinal direction.Type: GrantFiled: December 12, 2020Date of Patent: April 23, 2024Assignee: Mahle International GmbHInventors: Marc Fraas, Holger Laux, Thorsten Moellert, Walter Wolf
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Patent number: 11959509Abstract: A housing may include a first housing part and a second housing part. The first housing part may include a first latching contour having at least one first latching lug. The first housing part may include at least one further latching contour having at least one further latching lug. The second housing part may be connected to the first housing part via a latching connection. The second housing part may include at least one counter-latching contour.Type: GrantFiled: July 7, 2021Date of Patent: April 16, 2024Assignee: Mahle International GmbHInventors: Marc Fraas, Michael Komowski, Holger Laux
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Patent number: 11685230Abstract: A flap stopper for a rotatable flap for controlling an air flow may include a round bearing support disc, a round stopper support disc, stop elements, and connecting ribs. The stopper support disc may be spaced apart from the bearing support disc in an axial direction. The stop elements may be arranged on the stopper support disc. The connecting ribs may be arranged between the bearing support disc and the stopper support disc. The bearing support disc, the stopper support disc, the stop elements, and the connecting ribs may be formed as an integral plastic injection-molded part.Type: GrantFiled: July 6, 2021Date of Patent: June 27, 2023Inventors: Marc Fraas, Michael Komowski, Holger Laux
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Publication number: 20230129486Abstract: A method for operating an air-conditioning system that carries out an air quality testing cycle is disclosed. The air quality testing cycle includes: Step A: testing if the current pollutant concentration is below a predetermined first pollutant limit value; Step B: in the event that it is determined in the Step A that the current pollutant concentration is below the first pollutant limit value, testing if the bypass device is completely open or if the current flow rate of the blower device corresponds to a current air volume demand of the air-conditioning system; Step D: in the event that it is determined in the Step B that the bypass device is not completely opened or that the current flow rate does not correspond to the current air volume demand, testing current pollutant concentration is below a predetermined second pollutant limit value that is smaller than the first pollutant limit value.Type: ApplicationFiled: September 6, 2022Publication date: April 27, 2023Inventors: Marc Fraas, Florian Klein, Michael Markus, Oliver Schultze
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Publication number: 20230076020Abstract: An air conditioning system of a motor vehicle, having a housing with at least two independent air ducts formed therein, which are arranged separately from each other by at least one partition wall in the housing. A cooling heat exchanger is arranged in the housing such that it is flowed through by air, which can flow into the at least two independent air ducts. A heating heat exchanger is arranged in the housing such that it protrudes into the at least two independent air ducts and is flowed through by air of the at least two independent air ducts. The heating heat exchanger being an electrically operable heat exchanger, which is formed with several independently heated heat exchanger areas, so that the air flowing through an heat exchanger area is independently heatable and each independent air duct is provided at least one heat exchanger area.Type: ApplicationFiled: September 8, 2022Publication date: March 9, 2023Applicant: MAHLE International GmbHInventors: Holger LAUX, Walter Wolf, Marc Fraas
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Patent number: 11536392Abstract: A shaft-bearing bush assembly for a valve arrangement for an air-conditioning system is disclosed. The shaft-bearing bush assembly includes a shaft drive-connectable to a valve of the valve arrangement and a bearing bush, in which the shaft is rotatably received relative to the bearing bush between a first rotary position and a second rotary position about an axis of rotation extending along the axial direction. A bush projection is non-rotatably arranged on the bearing bush relative to the bearing bush and a shaft projection is non-rotatably arranged on the shaft relative to the shaft. The bush projection and the shaft projection are matched to one another such that the bush projection provides a rotary stop for the shaft projection for limiting the rotary movement of the shaft between the first rotary position and the second rotary position.Type: GrantFiled: December 12, 2020Date of Patent: December 27, 2022Inventors: Marc Fraas, Holger Laux, Walter Wolf
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Publication number: 20220042533Abstract: A housing may include a first housing part and a second housing part. The first housing part may include a first latching contour having at least one first latching lug. The first housing part may include at least one further latching contour having at least one further latching lug. The second housing part may be connected to the first housing part via a latching connection. The second housing part may include at least one counter-latching contour.Type: ApplicationFiled: July 7, 2021Publication date: February 10, 2022Inventors: Marc Fraas, Michael Komowski, Holger Laux
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Publication number: 20220001719Abstract: A flap stopper for a rotatable flap for controlling an air flow may include a round bearing support disc, a round stopper support disc, stop elements, and connecting ribs. The stopper support disc may be spaced apart from the bearing support disc in an axial direction. The stop elements may be arranged on the stopper support disc. The connecting ribs may be arranged between the bearing support disc and the stopper support disc. The bearing support disc, the stopper support disc, the stop elements, and the connecting ribs may be formed as an integral plastic injection-molded part.Type: ApplicationFiled: July 6, 2021Publication date: January 6, 2022Inventors: Marc Fraas, Michael Komowski, Holger Laux
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Publication number: 20210178857Abstract: A ventilation device may include first and second supply ducts, a mixing section having a mixing duct into which the first and second supply ducts may lead, the first and second supply ducts arranged in the mixing section adjacent one another in a transverse direction, and first and second guides in the mixing section each running in the transverse direction and being located opposite one another in a longitudinal direction running transversely to the transverse direction, each guide having two guide walls running in the transverse direction and located opposite one another in a height direction running transversely to the transverse direction and longitudinal direction, at least one of the guide walls sloping away from the other guide wall at a slope angle with respect to the longitudinal direction.Type: ApplicationFiled: December 12, 2020Publication date: June 17, 2021Inventors: Marc Fraas, Holger Laux, Thorsten Moellert, Walter Wolf
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Publication number: 20210180716Abstract: A shaft-bearing bush assembly for a valve arrangement for an air-conditioning system is disclosed. The shaft-bearing bush assembly includes a shaft drive-connectable to a valve of the valve arrangement and a bearing bush, in which the shaft is rotatably received relative to the bearing bush between a first rotary position and a second rotary position about an axis of rotation extending along the axial direction. A bush projection is non-rotatably arranged on the bearing bush relative to the bearing bush and a shaft projection is non-rotatably arranged on the shaft relative to the shaft. The bush projection and the shaft projection are matched to one another such that the bush projection provides a rotary stop for the shaft projection for limiting the rotary movement of the shaft between the first rotary position and the second rotary position.Type: ApplicationFiled: December 12, 2020Publication date: June 17, 2021Inventors: Marc Fraas, Holger Laux, Walter Wolf
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Patent number: 9915150Abstract: A turbine blade for a turbomachine having a turbine blade wall and a fluid channel having inlet channel section on the end region leading to the cold side, outlet channel section on the end region leading to the hot side, and central channel section therebetween having a circular cross-section constant along the length. The turbine blade forms an acute angle with the surface of the turbine blade wall over which hot gas flows, and has an intermediate channel section between the inlet and central channel sections, the intermediate channel section having a larger cross-sectional area than the central channel section. The central channel section connects to the intermediate channel section forming a shoulder surface formed on a wall region of the fluid channel and, on the opposing wall region, the intermediate and central channel sections merge with one another in a linear manner with a reduced shoulder height.Type: GrantFiled: August 21, 2015Date of Patent: March 13, 2018Assignee: Siemens AktiengesellschaftInventors: Stefan Dahlke, Tilman Auf dem Kampe, Marc Fraas
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Publication number: 20170268347Abstract: A turbine blade for a turbomachine having a turbine blade wall and a fluid channel having inlet channel section on the end region leading to the cold side, outlet channel section on the end region leading to the hot side, and central channel section therebetween having a circular cross-section constant along the length. The turbine blade forms an acute angle with the surface of the turbine blade wall over which hot gas flows, and has an intermediate channel section between the inlet and central channel sections, the intermediate channel section having a larger cross-sectional area than the central channel section. The central channel section connects to the intermediate channel section forming a shoulder surface formed on a wall region of the fluid channel and, on the opposing wall region, the intermediate and central channel sections merge with one another in a linear manner with a reduced shoulder height.Type: ApplicationFiled: August 21, 2015Publication date: September 21, 2017Applicant: Siemens AktiengesellschaftInventors: Stefan Dahlke, Tilman Auf dem Kampe, Marc Fraas