Patents by Inventor Timo Hufnagel
Timo Hufnagel 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: 11722076Abstract: In a drive system and method for operating a drive system, in which the drive systems includes an electromagnetically operable brake, an electric motor, e.g., a three-phase motor, and an electronic circuit, the brake has an energizable coil, e.g., a brake coil, the electronic circuit has a rectifier, an upper controllable semiconductor switch, a freewheeling diode, and a varistor, a direct voltage provided by a rectifier is able to be made available by closing or by a pulse-width-modulated actuation of an upper controllable semiconductor switch of the coil, and by opening the upper controllable semiconductor switch, a current driven by the coil in the de-excitation of the coil is freewheeling and/or flowing through the freewheeling diode and the varistor or through a component connected in parallel with the varistor.Type: GrantFiled: January 13, 2020Date of Patent: August 8, 2023Assignee: SEW-EURODRIVE GMBH & CO. KGInventors: Timo Hufnagel, Hans Jürgen Kollar, Christopher Reichert
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Patent number: 11549562Abstract: An electromagnetically actuable brake device includes: a coil shell, in particular of the solenoid, an armature disk, which is connected to the coil shell in a torque-proof yet displaceable manner, a sensor having a sensor housing, a spring part, and a screwed cable gland. The coil shell has a stepped through bore, the sensor housing of the sensor has a stepped configuration, the screwed cable gland is situated at an end of the bore, in particular is screwed into a threaded section of the bore, the spring part is situated in the bore between the screwed cable gland and the sensor housing, the spring part is braced on a step of the sensor housing on one side and on the screwed cable gland on the other, and the sensor housing is pressed against a step of the bore, in particular by the spring part.Type: GrantFiled: January 12, 2021Date of Patent: January 10, 2023Assignee: SEW-EURODRIVE GMBH & CO. KGInventors: Timo Hufnagel, Gerolf Fichtner-Pflaum
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Publication number: 20220131484Abstract: In a drive system and method for operating a drive system, in which the drive systems includes an electromagnetically operable brake, an electric motor, e.g., a three-phase motor, and an electronic circuit, the brake has an energizable coil, e.g., a brake coil, the electronic circuit has a rectifier, an upper controllable semiconductor switch, a freewheeling diode, and a varistor, a direct voltage provided by a rectifier is able to be made available by closing or by a pulse-width-modulated actuation of an upper controllable semiconductor switch of the coil, and by opening the upper controllable semiconductor switch, a current driven by the coil in the de-excitation of the coil is freewheeling and/or flowing through the freewheeling diode and the varistor or through a component connected in parallel with the varistor.Type: ApplicationFiled: January 13, 2020Publication date: April 28, 2022Applicant: SEW-EURODRIVE GMBH & CO. KGInventors: Timo HUFNAGEL, Hans Jürgen KOLLAR, Christopher REICHERT
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Publication number: 20210131512Abstract: An electromagnetically actuable brake device includes: a coil shell, in particular of the solenoid, an armature disk, which is connected to the coil shell in a torque-proof yet displaceable manner, a sensor having a sensor housing, a spring part, and a screwed cable gland. The coil shell has a stepped through bore, the sensor housing of the sensor has a stepped configuration, the screwed cable gland is situated at an end of the bore, in particular is screwed into a threaded section of the bore, the spring part is situated in the bore between the screwed cable gland and the sensor housing, the spring part is braced on a step of the sensor housing on one side and on the screwed cable gland on the other, and the sensor housing is pressed against a step of the bore, in particular by the spring part.Type: ApplicationFiled: January 12, 2021Publication date: May 6, 2021Applicant: SEW-EURODRIVE GMBH & CO. KGInventors: Timo HUFNAGEL, Gerolf FICHTNER-PFLAUM
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Patent number: 10914354Abstract: An electromagnetically actuable brake device includes: a coil shell, in particular of the solenoid, an armature disk, which is connected to the coil shell in a torque-proof yet displaceable manner, a sensor having a sensor housing, a spring part, and a screwed cable gland. The coil shell has a stepped through bore, the sensor housing of the sensor has a stepped configuration, the screwed cable gland is situated at an end of the bore, in particular is screwed into a threaded section of the bore, the spring part is situated in the bore between the screwed cable gland and the sensor housing, the spring part is braced on a step of the sensor housing on one side and on the screwed cable gland on the other, and the sensor housing is pressed against a step of the bore, in particular by the spring part.Type: GrantFiled: November 13, 2015Date of Patent: February 9, 2021Assignee: SEW-EURODRIVE GMBH & CO. KGInventors: Timo Hufnagel, Gerolf Fichtner-Pflaum
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Publication number: 20180017119Abstract: An electromagnetically actuable brake device includes: a coil shell, in particular of the solenoid, an armature disk, which is connected to the coil shell in a torque-proof yet displaceable manner, a sensor having a sensor housing, a spring part, and a screwed cable gland. The coil shell has a stepped through bore, the sensor housing of the sensor has a stepped configuration, the screwed cable gland is situated at an end of the bore, in particular is screwed into a threaded section of the bore, the spring part is situated in the bore between the screwed cable gland and the sensor housing, the spring part is braced on a step of the sensor housing on one side and on the screwed cable gland on the other, and the sensor housing is pressed against a step of the bore, in particular by the spring part.Type: ApplicationFiled: November 13, 2015Publication date: January 18, 2018Applicant: SEW-EURODRIVE GMBH & CO. KGInventors: Timo HUFNAGEL, Gerolf FICHTNER-PFLAUM
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Patent number: 9140381Abstract: A butterfly valve (100) is provided according to the invention. The butterfly valve (100) includes a valve body (103) including a valve bore (109) passing through the valve body (103) and a shaft bore (112), a valve shaft (121) located in the shaft bore (112) and extending through the valve bore (109), a thermal conductor ring (156) fitted over an end of the valve shaft (121), and at least one compression ring (152) mounted to the thermal conductor ring (156) and located within the shaft bore (112). The at least one compression ring (152) fits partially into and extends partially out of a corresponding at least one ring groove (153) in the thermal conductor ring (156), with the at least one compression ring (152) substantially sealing the thermal conductor ring (156) to an actuator-side shaft bore (112A).Type: GrantFiled: September 18, 2011Date of Patent: September 22, 2015Assignee: Norgren GmbHInventors: Primoz Zlindra, Timo Hufnagel, Mark Sealy
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Patent number: 9062797Abstract: A high-temperature butterfly valve (100) is provided. The high-temperature butterfly valve (100) includes a valve assembly (110), a valve actuator (123) configured to couple to the valve assembly (110), with the valve actuator (123) including an actuator shaft (126) configured to couple to a valve shaft (121) of the valve assembly (110), and a fluid cooling system (225) configured to flow a cooling fluid through at least a portion of the valve actuator (123).Type: GrantFiled: September 18, 2011Date of Patent: June 23, 2015Assignee: Norgren GmbHInventors: Primoz Zlindra, Timo Hufnagel, Mark Sealy
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Patent number: 9022351Abstract: A butterfly valve (100) is provided. The butterfly valve (100) includes a valve body (103) including a valve bore (109) passing through the valve body (103), with the valve bore (109) including an upstream valve bore portion (109U) and a downstream valve bore portion (109D), a shaft bore (112), a valve shaft (121) located in the shaft bore (112) and extending substantially across the valve bore (109), and a valve flap (107) affixed to the valve shaft (121) and configured to be rotated by the valve shaft (121). The valve flap (107) is configured to rotate between a closed orientation blocking the valve bore (109) and an open orientation. The valve flap (107) is affixed on an upstream valve bore portion side of the valve shaft (121), wherein incoming fluid presses the valve flap (107) against the valve shaft (121).Type: GrantFiled: September 18, 2011Date of Patent: May 5, 2015Assignee: Norgren GmbHInventors: Primoz Zlindra, Timo Hufnagel, Mark Sealy
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Publication number: 20130168589Abstract: A high-temperature butterfly valve (100) is provided. The high-temperature butterfly valve (100) includes a valve assembly (110), a valve actuator (123) configured to couple to the valve assembly (110), with the valve actuator (123) including an actuator shaft (126) configured to couple to a valve shaft (121) of the valve assembly (110), and a fluid cooling system (225) configured to flow a cooling fluid through at least a portion of the valve actuator (123).Type: ApplicationFiled: September 18, 2011Publication date: July 4, 2013Applicant: Norgren GmbHInventors: Primoz Zlindra, Timo Hufnagel, Mark Sealy
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Publication number: 20130168590Abstract: A butterfly valve (100) is provided. The butterfly valve (100) includes a valve body (103) including a valve bore (109) passing through the valve body (103), with the valve bore (109) including an upstream valve bore portion (109U) and a downstream valve bore portion (109D), a shaft bore (112), a valve shaft (121) located in the shaft bore (112) and extending substantially across the valve bore (109), and a valve flap (107) affixed to the valve shaft (121) and configured to be rotated by the valve shaft (121). The valve flap (107) is configured to rotate between a closed orientation blocking the valve bore (109) and an open orientation. The valve flap (107) is affixed on an upstream valve bore portion side of the valve shaft (121), wherein incoming fluid presses the valve flap (107) against the valve shaft (121).Type: ApplicationFiled: September 18, 2011Publication date: July 4, 2013Applicant: Norgren GmbHInventors: Primoz Zlindra, Timo Hufnagel, Mark Sealy
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Publication number: 20130161552Abstract: A butterfly valve (100) is provided according to the invention. The butterfly valve (100) includes a valve body (103) including a valve bore (109) passing through the valve body (103) and a shaft bore (112), a valve shaft (121) located in the shaft bore (112) and extending through the valve bore (109), a thermal conductor ring (156) fitted over an end of the valve shaft (121), and at least one compression ring (152) mounted to the thermal conductor ring (156) and located within the shaft bore (112). The at least one compression ring (152) fits partially into and extends partially out of a corresponding at least one ring groove (153) in the thermal conductor ring (156), with the at least one compression ring (152) substantially sealing the thermal conductor ring (156) to an actuator-side shaft bore (112A).Type: ApplicationFiled: September 18, 2011Publication date: June 27, 2013Inventors: Primoz Zlindra, Timo Hufnagel, Mark Sealy