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公开(公告)号：US20240136730A1
公开(公告)日：2024-04-25
申请号：US18278391
申请日：2022-01-24
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Jens Eichler , Christian Weinmann , Tom Gaide , Michael H. Stalder , Sebastian Eggert-Richter
CPC classification number: H01Q15/02 , B29C64/393 , B33Y10/00 , B33Y50/02 , B33Y80/00 , H01Q15/0013 , H01Q15/0086 , B29C64/124
Abstract: The present disclosure provides methods, articles, and apparatuses related to altering electromagnetic radiation. A method of making articles includes a) forming an electromagnetic radiation altering material by providing a polymer matrix and optionally embedding dielectric particles in the polymer matrix and b) obtaining initial dielectric properties of the electromagnetic radiation altering material. The method further includes c) modeling electromagnetic radiation altering features of the material suitable for the article obtained from the material to have target electromagnetic radiation altering properties, thereby obtaining a simulation of the electromagnetic radiation altering article; and d) additive manufacturing the electromagnetic radiation altering article based on the simulation of the electromagnetic radiation altering article. An electromagnetic radiation altering article obtained by the method is also provided. Further, an apparatus is provided including the electromagnetic radiation altering article. Methods of altering electromagnetic radiation are provided, including integrating an electromagnetic radiation altering article into either an electronic device or an electromagnetic radiation producing device, or placing the article in the vicinity of the device. Aspects of the present disclosure advantageously contribute to achieving optimized materials and designs for electromagnetic radiation altering articles.
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公开(公告)号：US20220030701A1
公开(公告)日：2022-01-27
申请号：US17250905
申请日：2019-10-16
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Gunther A. J. Stollwerck , Mark Gravermann , Jens Weichold , Sebastian Eggert-Richter , Michael H. Stalder
Abstract: Encapsulated PCB assembly (1) for electrical connection to a high- or medium-voltage power conductor in a power distribution network of a national grid, comprising a) a PCB (10), delimited by a peripheral edge (20) and comprising a high-tension pad (60, 62) on a voltage of at least one kilovolt, b) an electrically insulating encapsulation body (70) in surface contact with, and enveloping, the high-tension pad and at least a portion of the PCB edge adjacent to the high-tension pad, c) a shielding layer (80) on an external surface (90) of the encapsulation body and for being held on electrical ground or on a low voltage to shield at least a low-voltage portion of the PCB. The high-tension pad extends to the peripheral edge of the PCB.
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公开(公告)号：US12130308B2
公开(公告)日：2024-10-29
申请号：US17753328
申请日：2020-09-14
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Guenther A. J. Stollwerck , Mark Gravermann , Bernd Schubert , Christine B. Bund , Mirco Gunjaca , Jens Weichold , Johannes Fink , Michael H. Stalder , Sebastian Eggert-Richter , Harald Westkamp , Willy A. Ahlmann , Guenter M. Zilligen
CPC classification number: G01R15/16 , G01R15/04 , G01R19/0084
Abstract: Voltage sensor (1) comprising a voltage divider (40) for sensing an AC voltage of a HV/MV power conductor (10). For adjusting the common overall impedance of the low-voltage portion of the voltage divider towards a desired impedance, the low-voltage portion (60) comprises one or more low-voltage impedance elements (110), a plurality of adjustment impedance elements (80) and a plurality of switches. In its connect state, each switch electrically connects an adjustment impedance element in parallel to at least one of the one or more low-voltage impedance elements (110). The overall impedance of the high-voltage portion (50) and the overall impedance of the low-voltage portion (60) of the voltage divider (40) are adapted such that, by bringing one or more of the switches (90) into their connect state, the voltage divider (40) has, for an AC voltage of between 5 and 25 kV phase-to-ground and a frequency of between 40 and 70 Hertz, a dividing ratio of 3077, of 6154, of 6769 or of 10 000.
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公开(公告)号：US11937043B2
公开(公告)日：2024-03-19
申请号：US17621438
申请日：2020-06-23
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Sebastian Eggert-Richter , Michael H. Stalder , Christian Weinmann , Benhard C. Schneider , Paul H. R. Jolly
CPC classification number: H04R1/1083 , H04R1/1008 , H04W4/029 , H04R2420/07
Abstract: A hearing protection device is provided. The hearing protection device includes a first earmuff connected to a second earmuff by a headband. Each of the first and second earmuffs are configured to dampen ambient sound. The hearing protection device also includes an antenna, located within a housing of the first earmuff. The antenna comprises a rigid portion coupled to a flexible portion. Both the rigid portion and the flexible portion are fixed within the housing. The flexible portion is configured to remain substantially in line with a ground plane with respect to the rigid portion.
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公开(公告)号：US11683880B2
公开(公告)日：2023-06-20
申请号：US17250905
申请日：2019-10-16
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Gunther A. J. Stollwerck , Mark Gravermann , Jens Weichold , Sebastian Eggert-Richter , Michael H. Stalder
CPC classification number: H05K1/0254 , G01R1/18 , G01R15/16 , H05K1/111 , H05K5/065 , H05K9/0007 , H05K1/181 , H05K2201/09163 , H05K2201/10015
Abstract: Encapsulated PCB assembly (1) for electrical connection to a high- or medium-voltage power conductor in a power distribution network of a national grid, comprising a) a PCB (10), delimited by a peripheral edge (20) and comprising a high-tension pad (60, 62) on a voltage of at least one kilovolt, b) an electrically insulating encapsulation body (70) in surface contact with, and enveloping, the high-tension pad and at least a portion of the PCB edge adjacent to the high-tension pad, c) a shielding layer (80) on an external surface (90) of the encapsulation body and for being held on electrical ground or on a low voltage to shield at least a low-voltage portion of the PCB. The high-tension pad extends to the peripheral edge of the PCB.
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Patent Agency Ranking
公开(公告)号：US20200174042A1
公开(公告)日：2020-06-04
申请号：US16620665
申请日：2018-06-13
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Michael H. Stalder , Sebastian Eggert-Richter , Rainer Fangrat , Mark Gravermann , Jens Weichold , Gunther A.J. Stollwerck , Bernd Schubert , Hermanus Franciscus Maria Van Meijl , Andreea Sabo
Abstract: Impedance assembly (2) for use in a voltage divider for sensing an AC voltage of at least 1 kV versus ground of a power-carrying conductor distributing electrical energy in a grid. The impedance assembly comprises a) a printed circuit board (131) comprising one or more dielectric board layers (210, 215, 220), b) an externally accessible high-voltage contact (100), c) an externally accessible low-voltage contact (110), spaced from the high-voltage contact by at least 30 mm, and d) at least two dividing capacitors (91), connected in series between the high-voltage contact and the low-voltage contact and operable as a high-voltage side of the voltage divider. Each dividing capacitor has two electrodes formed by conductive areas (301, 302, 303, 304, 305, 306), arranged on opposed surface portions of a specific dielectric board layer, and a dielectric comprising a portion of the specific dielectric board layer on which the electrodes are arranged. Instead of the dividing capacitors, the impedance assembly may comprise a resistor layer.
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公开(公告)号：US20240235049A9
公开(公告)日：2024-07-11
申请号：US18278391
申请日：2022-01-24
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Jens Eichler , Christian Weinmann , Tom Gaide , Michael H. Stalder , Sebastian Eggert-Richter
CPC classification number: H01Q15/02 , B29C64/393 , B33Y10/00 , B33Y50/02 , B33Y80/00 , H01Q15/0013 , H01Q15/0086 , B29C64/124
Abstract: The present disclosure provides methods, articles, and apparatuses related to altering electromagnetic radiation. A method of making articles includes a) forming an electromagnetic radiation altering material by providing a polymer matrix and optionally embedding dielectric particles in the polymer matrix and b) obtaining initial dielectric properties of the electromagnetic radiation altering material. The method further includes c) modeling electromagnetic radiation altering features of the material suitable for the article obtained from the material to have target electromagnetic radiation altering properties, thereby obtaining a simulation of the electromagnetic radiation altering article; and d) additive manufacturing the electromagnetic radiation altering article based on the simulation of the electromagnetic radiation altering article. An electromagnetic radiation altering article obtained by the method is also provided. Further, an apparatus is provided including the electromagnetic radiation altering article. Methods of altering electromagnetic radiation are provided, including integrating an electromagnetic radiation altering article into either an electronic device or an electromagnetic radiation producing device, or placing the article in the vicinity of the device. Aspects of the present disclosure advantageously contribute to achieving optimized materials and designs for electromagnetic radiation altering articles.
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公开(公告)号：US20230384350A1
公开(公告)日：2023-11-30
申请号：US18321241
申请日：2023-05-22
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Mark Gravermann , Gunther A. J. Stollwerck , Jens Weichold , Christine B. Bund , Mirco Gunjaca , Rainer Reeken , Martin A. Milek , Sebastian Eggert-Richter , Joerg Hahn , Michael H. Stalder , Christian Weinmann , Holger J. Kurzhals , Christopher R. Wilson
CPC classification number: G01R15/06 , G01R19/0084
Abstract: A voltage sensor for sensing an AC voltage of a HV/MV power conductor comprises a capacitive voltage divider for sensing the AC voltage having one or more high-voltage capacitors electrically connected in series with each other and a low-voltage portion comprising one or more low-voltage capacitors electrically connected with each other between the high-voltage portion and electrical ground. The voltage divider also comprises a signal contact, electrically arranged between the high-voltage portion and the low-voltage portion, for providing a signal voltage indicative of the AC voltage. The low-voltage portion further comprises a plurality of electrically actuated adjustable impedance elements configured to adjust the common overall impedance of the low-voltage portion towards a desired impedance. Each electrically actuated adjustable impedance element comprises one or more associated adjustment capacitors and at least one electrically actuatable element, wherein each electrically actuatable element is associated with and electrically connected to one or more of the adjustment capacitors and wherein each electrically actuatable element is configured to achieve one of a connected state and a disconnected state. In the connected state, an associated adjustment capacitor is electrically connected in parallel to at least one of the one or more low-voltage capacitors. In the disconnected state, the associated adjustment capacitor is electrically disconnected from the low-voltage capacitor(s).
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公开(公告)号：US20220360884A1
公开(公告)日：2022-11-10
申请号：US17621438
申请日：2020-06-23
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Sebastian Eggert-Richter , Michael H. Stalder , Christian Weinmann , Benhard C. Schneider , Paul H.R. Jolly
Abstract: A hearing protection device is provided. The hearing protection device includes a first earmuff connected to a second earmuff by a headband. Each of the first and second earmuffs are configured to dampen ambient sound. The hearing protection device also includes an antenna, located within a housing of the first earmuff. The antenna comprises a rigid portion coupled to a flexible portion. Both the rigid portion and the flexible portion are fixed within the housing. The flexible portion is configured to remain substantially in line with a ground plane with respect to the rigid portion.
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公开(公告)号：US20220317158A1
公开(公告)日：2022-10-06
申请号：US17753328
申请日：2020-09-14
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Gunther A. J. Stollwerck , Mark Gravermann , Bernd Schubert , Christine B. Bund , Mirco Gunjaca , Jens Weichold , Johannes Fink , Michael H. Stalder , Sebastian Eggert-Richter , Harald Westkamp , Willy A. Ahlmann , Guenter M. Zilligen
Abstract: Voltage sensor (1) comprising a voltage divider (40) for sensing an AC voltage of a HV/MV power conductor (10). For adjusting the common overall impedance of the low-voltage portion of the voltage divider towards a desired impedance, the low-voltage portion (60) comprises one or more low-voltage impedance elements (110), a plurality of adjustment impedance elements (80) and a plurality of switches. In its connect state, each switch electrically connects an adjustment impedance element in parallel to at least one of the one or more low-voltage impedance elements (110). The overall impedance of the high-voltage portion (50) and the overall impedance of the low-voltage portion (60) of the voltage divider (40) are adapted such that, by bringing one or more of the switches (90) into their connect state, the voltage divider (40) has, for an AC voltage of between 5 and 25 kV phase-to-ground and a frequency of between 40 and 70 Hertz, a dividing ratio of 3077, of 6154, of 6769 or of 10 000.
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