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公开(公告)号：US20230121050A1
公开(公告)日：2023-04-20
申请号：US17918806
申请日：2021-11-01
发明人： Domenic P. Marzano , Alex R. Rugh , Joseph L. Hake
摘要： Provided is a system for an insulated-gate bipolar transistor (IGBT) rectifier for charging ultra-capacitors. The system may include a power converter, which may receive power from a power source. A direct current (DC) bus may be connected to the power converter and may receive power from the power converter. At least one IGBT may be connected to the DC bus and may receive power from the DC bus. An array of ultra-capacitors may be connected to the at least one IGBT. At least one controller may control the at least one IGBT to charge the array of ultra-capacitors. A method and computer program product are also disclosed.
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公开(公告)号：US20210265086A1
公开(公告)日：2021-08-26
申请号：US17182066
申请日：2021-02-22
发明人： Francis JOHNSON , Richard W. GREGER , John M. LARSON , Yiming WU , Fan ZHANG , Kathryn Sara DAMIEN
IPC分类号： H01F1/047
摘要： Disclosed herein is a permanent magnet comprising: a plurality of aligned iron nitride nanoparticles wherein the iron nitride nanoparticles include α″-Fe16N2 phase domains; wherein a ratio of integrated intensities of an α″-Fe16N2 (004) x-ray diffraction peak to an α″-α″-Fe16N2 (202) x-ray diffraction peak for the aligned iron nitride nanoparticles is greater than at least 7%, wherein the diffraction vector is parallel to alignment direction, and wherein the iron nitride nanoparticles exhibit a squareness measured parallel to the alignment direction that is greater than a squareness measured perpendicular to the alignment direction.
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公开(公告)号：US10994169B2
公开(公告)日：2021-05-04
申请号：US16517953
申请日：2019-07-22
发明人： Terry Joseph Marzano
IPC分类号： A63B21/005
摘要： A method of utilizing eddy currents to induce resistance that simulates and replaces physical weights in strength training exercise equipment includes a user moving at least one of a first member and a second member that supports magnets of alternating polarity, relative to each other bi-directionally. The bi-directional movement can be linear, radial, arcuate, or circular. The movement of the first member and a second member relative to each other induces in the first member eddy currents which resist the movement of the first member, the second member, or both bi-directionally.
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公开(公告)号：US20200023220A1
公开(公告)日：2020-01-23
申请号：US16517953
申请日：2019-07-22
发明人： Terry Joseph Marzano
IPC分类号： A63B21/005
摘要： A method of utilizing eddy currents to induce resistance that simulates and replaces physical weights in strength training exercise equipment includes a user moving at least one of a first member and a second member that supports magnets of alternating polarity, relative to each other bi-directionally. The bi-directional movement can be linear, radial, arcuate, or circular. The movement of the first member and a second member relative to each other induces in the first member eddy currents which resist the movement of the first member, the second member, or both bi-directionally.
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公开(公告)号：US20180155707A1
公开(公告)日：2018-06-07
申请号：US15888702
申请日：2018-02-05
申请人： Life Magnetics, Inc.
发明人： Kevin Hagedorn , Saravana Murthy
CPC分类号： C12N15/1013 , C12Q1/686
摘要： Methods for separating and identifying nucleic acids utilize carbon coated magnetic beads. The method teaches that multivalent cations promote binding of single stranded nucleic acids to the beads and that the single stranded nucleic acids can be released with the addition of chelating agents that bind the multivalent cations such as EDTA. The method further teaches that fragile single stranded nucleic acids, such as RNA, can be stored on the surface of the beads. Lastly, the method also teaches that by iteratively adding complimentary DNA oligos, single stranded nucleic acids can be quantified or individually isolated using the carbon coated magnetic beads.
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公开(公告)号：US20180135040A1
公开(公告)日：2018-05-17
申请号：US15858140
申请日：2017-12-29
申请人： Life Magnetics, Inc.
发明人： Kevin Hagedorn , Saravana Murthy
CPC分类号： C12N15/1013 , C12Q1/686
摘要： Methods for separating and identifying nucleic acids utilize carbon coated magnetic beads. The method teaches that multivalent cations promote binding of single stranded nucleic acids to the beads and that the single stranded nucleic acids can be released with the addition of chelating agents that bind the multivalent cations such as EDTA. The method further teaches that fragile single stranded nucleic acids, such as RNA, can be stored on the surface of the beads. Lastly, the method also teaches that by iteratively adding complimentary DNA oligos, single stranded nucleic acids can be quantified or individually isolated using the carbon coated magnetic beads.
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公开(公告)号：US20140254859A1
公开(公告)日：2014-09-11
申请号：US14196626
申请日：2014-03-04
发明人： John B. French
摘要： Driver for an acoustic transducer having a moving coil of substantially equal length to the air gap. The air gap may itself be extended in length using an upper or lower lip, or both. A stationary coil is also provided. The moving and stationary coils can be controlled by suitable control blocks to form an electromagnet-based transducer with reduced distortion. The acoustic transducer may be a hybrid acoustic transducer.
摘要翻译： 用于具有与气隙大致相等长度的移动线圈的声换能器的驱动器。 气隙本身可以使用上唇或下唇或两者长度延伸。 还提供固定线圈。 移动和固定线圈可以由适当的控制块控制，以形成具有减小的失真的基于电磁体的换能器。 声换能器可以是混合式声换能器。
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公开(公告)号：US3892673A
公开(公告)日：1975-07-01
申请号：US22838772
申请日：1972-02-22
申请人： GRAHAM MAGNETICS INC
发明人： EHRREICH JOHN E , RETI ADRIAN R
CPC分类号： C22C1/0433 , B22F1/02 , G11B5/70 , G11B5/70605 , G11B5/70621 , G11B5/714 , H01F1/061 , H01F1/065 , Y10T428/2998
摘要： A dry powder like composition formed of a mass of acicular particles of a metal-containing thermally decomposable organic salt crystals having a polymeric coating.
摘要翻译： 由具有聚合物涂层的含金属的可热分解的有机盐晶体的针状颗粒的大量形成的干粉状组合物。
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公开(公告)号：US3831269A
公开(公告)日：1974-08-27
申请号：US38494973
申请日：1973-08-02
发明人： SOMMER A
IPC分类号： H01C7/04
CPC分类号： H01C7/041 , Y10T29/49085
摘要： A method of manufacturing a thin film thermistor in which the reagent grade materials are dissolved in water and allowed to intimately mix therein after which the mixture is spray-dried under pressure to obtain a fine powder which is the true thermistor composition desired. After oxidation at high temperatures for a long period of time to remove sulphites etc., the resulting oxides are mixed in a bone milling process with a plastic binder which is then poured on to a glass plate and spread to a predetermined thickness and allowed to dry, after which the material is placed on a ceramic plate and fired to bond the plastic and ceramic and burn out portions of the plastic whereupon electrodes are attached to the final thermistor.
摘要翻译： 一种薄膜热敏电阻的制造方法，其中将试剂级材料溶解在水中并使其充分混合，之后将混合物在压力下喷雾干燥，得到所需真正的热敏电阻组合物的细粉末。 在高温下长时间氧化以除去亚硫酸盐等后，将所得氧化物在骨磨法中与塑料粘合剂混合，然后将其倒在玻璃板上并铺展至预定厚度并使其干燥 然后将材料放置在陶瓷板上并烧结以将塑料和陶瓷结合在一起，并烧掉部分塑料，然后电极附着在最终的热敏电阻上。
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10.发明授权Switched transistor power inverter circuit with saturable reactor current limiting means 失效具有可饱和电抗器电流限制装置的开关晶体管功率逆变器电路
公开(公告)号：US3818313A
公开(公告)日：1974-06-18
申请号：US35322573
申请日：1973-04-23
发明人： WILKINSON B , ROSENSTEIN A , STOLOWITZ M
CPC分类号： H02M7/53803
摘要： A power inverter circuit is provided which includes a transformer and a pair of switching transistors. The switching transistors connect the primary winding of the transformer to a direct-current source in an alternate manner, so that the polarity of the voltage applied to the winding is cyclically reversed in order to produce an alternating-current in the winding. In accordance with the invention, a saturable reactor is connected in circuit with the switching transistors to prevent each transistor from conducting a relatively large current before the voltage across such transistor drops to a minimum, so that switching losses in power inverter may be reduced.
摘要翻译： 提供了一种功率逆变器电路，其包括变压器和一对开关晶体管。 开关晶体管将变压器的初级绕组以交替的方式连接到直流电源，使得施加到绕组的电压的极性被循环地反转，以便在绕组中产生交流电。 根据本发明，可饱和电抗器与开关晶体管电路连接，以防止每个晶体管在该晶体管两端的电压下降到最小之前进行相对较大的电流，从而可以降低功率逆变器的开关损耗。
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