Patents by Inventor Peter Ragg
Peter Ragg 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: 11536278Abstract: A blower unit, particularly for an apparatus for assisting respiration, comprises a housing (2), an impeller (1) accommodated in an impeller chamber (3) in the housing (2), and a motor (12), connected to the impeller (1) via a shaft (15), which is accommodated in a motor chamber (13) in the housing (2). The motor (12) is fixed between walls (14, 18) of the motor chamber (13) by means of buffers, with at least one of the buffers being a sealing ring (16) which separates the shaft (15) from a passage for cooling air (33) which, in radial section, extends annularly around the motor (12).Type: GrantFiled: September 21, 2016Date of Patent: December 27, 2022Assignee: EBM-PAPST ST. GEORGEN GMBH & CO. KGInventor: Peter Ragg
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Patent number: 11359640Abstract: A set of parts for a radial fan has a fan wheel (2), a main housing part (1), and a complementary housing part (3). They can be assembled to form a first housing that encloses the fan wheel (2). The housing has an inlet opening (27) and an outlet (23). At least one second complementary fan wheels (2?, 2?) (3?, 3?), the shape of which differs from the first fan wheel part (2), can be connected to the motor instead of the fan wheel (2).Type: GrantFiled: February 19, 2020Date of Patent: June 14, 2022Assignee: ebm-papst St. Georgen GmbH & Co. KGInventors: Wolfgang Laufer, Peter Ragg, Arno Karwath, Francisco Rojo, Raul Rosas
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Patent number: 11105335Abstract: A radial fan that includes a fan wheel, which can be rotated about an axis and which comprises a base plate and airfoils protruding from the base plate, wherein the airfoils each comprise an upstream edge in a first spacing (r1) from the axis and a downstream edge in a second spacing (r2) from the axis, and an end wall, which together with the base plate, delimits a flow channel in which the airfoils engage. The cross-sectional area (A) of the flow channel between the upstream edge and the downstream edge passes through a maximum in a third spacing (r3) from the axis. The difference between a fourth spacing (r4) and a fifth spacing (r5), at which the cross-sectional area (A) in each case assumes nearest adjacent minima to the maximum, is at least half of the difference (r2?r1) between the first and the second spacing.Type: GrantFiled: March 28, 2018Date of Patent: August 31, 2021Assignee: ebm-papst St. Georgen GmbH & Co. KGInventors: Peter Ragg, Christian Moosmann
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Publication number: 20200182255Abstract: A set of parts for a radial fan has a fan wheel (2), a main housing part (1), and a complementary housing part (3). They can be assembled to form a first housing that encloses the fan wheel (2). The housing has an inlet opening (27) and an outlet (23). At least one second complementary fan wheels (2?, 2?) (3?, 3?), the shape of which differs from the first fan wheel part (2), can be connected to the motor instead of the fan wheel (2).Type: ApplicationFiled: February 19, 2020Publication date: June 11, 2020Inventors: Wolfgang LAUFER, Peter RAGG, Arno KARWATH, Francisco ROJO, Raul ROSAS
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Patent number: 10605269Abstract: A fan has an impeller (20) that is equipped with blades (26, 28, 30, 32, 34; 58). The blades are configured so that the blade loading of individual blades differs during operation. As a result of this variable blade loading, the frequencies associated with the blade-passing noise (BPF) of the fan can be distributed over a broader frequency spectrum, and thus have a less obtrusive effect.Type: GrantFiled: February 12, 2015Date of Patent: March 31, 2020Assignee: ebm-papst St. Georgen GmbH & Co. KGInventors: Michael Stadler, Peter Ragg, Wolfgang Laufer
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Publication number: 20190376525Abstract: A radial fan that includes a fan wheel, which can be rotated about an axis and which comprises a base plate and airfoils protruding from the base plate, wherein the airfoils each comprise an upstream edge in a first spacing (r1) from the axis and a downstream edge in a second spacing (r2) from the axis, and an end wall, which together with the base plate, delimits a flow channel in which the airfoils engage. The cross-sectional area (A) of the flow channel between the upstream edge and the downstream edge passes through a maximum in a third spacing (r3) from the axis. The difference between a fourth spacing (r4) and a fifth spacing (r5), at which the cross-sectional area (A) in each case assumes nearest adjacent minima to the maximum, is at least half of the difference (r2-r1) between the first and the second spacing.Type: ApplicationFiled: March 28, 2018Publication date: December 12, 2019Inventors: Peter Ragg, Christian Moosmann
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Publication number: 20180274545Abstract: A blower unit, particularly for an apparatus for assisting respiration, comprises a housing (2), an impeller (1) accommodated in an impeller chamber (3) in the housing (2), and a motor (12), connected to the impeller (1) via a shaft (15), which is accommodated in a motor chamber (13) in the housing (2). The motor (12) is fixed between walls (14, 18) of the motor chamber (13) by means of buffers, with at least one of the buffers being a sealing ring (16) which separates the shaft (15) from a passage for cooling air (33) which, in radial section, extends annularly around the motor (12).Type: ApplicationFiled: September 21, 2016Publication date: September 27, 2018Inventor: Peter Ragg
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Patent number: 9803649Abstract: An axial- or diagonal-fan has a fan wheel (34) having profiled rotor blades (32). Each blade has a suction or intake side (46), a portion located forward, with respect to the rotation direction (36), and having a leading edge (44), and a portion located rearward, with respect to the rotation direction (36), and having a trailing edge (92). Between said portions, on the intake side (46) of the respective rotor blade (32), a trip or separation edge (66) is provided, said trip edge having an S-shaped contour in a meridian cross-section.Type: GrantFiled: December 20, 2012Date of Patent: October 31, 2017Assignee: EBM-PAPST ST. GEORGEN GmbH & Co. KGInventors: Peter Ragg, Michael Stadler
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Publication number: 20160265556Abstract: A fan has an impeller (20) that is equipped with blades (26, 28, 30, 32, 34; 58). The blades are configured so that the blade loading of individual blades differs during operation. As a result of this variable blade loading, the frequencies associated with the blade-passing noise (BPF) of the fan can be distributed over a broader frequency spectrum, and thus have a less obtrusive effect.Type: ApplicationFiled: February 12, 2015Publication date: September 15, 2016Applicant: EBM-PAPST ST. GEORGEN GmbH & Co. KGInventors: Michael Stadler, Peter RAGG, Wolfgang Laufer
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Publication number: 20140286786Abstract: An axial- or diagonal-fan has a fan wheel (34) having profiled rotor blades (32). Each blade has a suction or intake side (46), a portion located forward, with respect to the rotation direction (36), and having a leading edge (44), and a portion located rearward, with respect to the rotation direction (36), and having a trailing edge (92). Between said portions, on the intake side (46) of the respective rotor blade (32), a trip or separation edge (66) is provided, said trip edge having an S-shaped contour in a meridian cross-section.Type: ApplicationFiled: December 20, 2012Publication date: September 25, 2014Applicant: EBM-PAPST ST. GEORGEN GMBH & CO. KGInventors: Peter Ragg, Michael Stadler
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Publication number: 20120195776Abstract: A fan having an electronically commutated drive motor (27) has a bearing tube (62) having an inner side and an outer side. The internal stator of the drive motor (27) is arranged in the region of the outer side. An external rotor (28) of said motor interacts during operation with the internal stator (72). Fan blades (26) of the fan (22) are arranged on the outer periphery of the external rotor (28). Bearing elements (52, 54), by means of which a shaft (46) connected to the external rotor (28) is journaled, are arranged on the inner side of the bearing tube (62). Conduits (90), which enable coolant to flow through the bearing tube (62) during operation of the fan (22), are provided in the bearing tube (62).Type: ApplicationFiled: July 1, 2010Publication date: August 2, 2012Applicant: EBM-PAPST ST. GEORGEN GMBH & CO. KGInventor: Peter Ragg
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Patent number: 8231333Abstract: A fan unit has a fan (10). Associated with the fan is an air-guiding tube (22) through which the fan (10) transports air, during operation. The air-guiding tube (22) is connected to at least one carrier tube (23) for suspension of the fan (10). The fan includes a carrier part (25). A damping member (30) is arranged between the carrier part (25) and the carrier tube (23) to reduce any structure-borne sound which occurs during operation of the fan (10).Type: GrantFiled: February 9, 2009Date of Patent: July 31, 2012Assignee: EBM-Papst St. Georgen GmbH & Co. KGInventor: Peter Ragg
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Publication number: 20090202342Abstract: A fan unit has a fan (10). Associated with the fan is an air-guiding tube (22) through which the fan (10) transports air, during operation. The air-guiding tube (22) is connected to at least one carrier tube (23) for suspension of the fan (10). The fan includes a carrier part (25). A damping member (30) is arranged between the carrier part (25) and the carrier tube (23) to reduce any structure-borne sound which occurs during operation of the fan (10).Type: ApplicationFiled: February 9, 2009Publication date: August 13, 2009Inventor: Peter Ragg