公开(公告)号：US20180075961A1

公开(公告)日：2018-03-15

申请号：US15698853

申请日：2017-09-08

Applicant: Hanchett Entry Systems, Inc.

Inventor： Brett L. Davis ,  Randall Shaffer ,  Eric Anderson

IPC: H01F13/00 ,  E05B47/00 ,  E05C19/16

CPC classification number: H01F13/006 ,  E05B47/0002 ,  E05B2047/0048 ,  E05B2047/0068 ,  E05C19/166

Abstract: A novel and useful degauss circuit for use with electromagnetic door locks. The door lock circuit is configured to provide a constant current to the electromagnetic coil load. A pulse width modulation (PWM) controller varies the frequency and/or duty cycle to a switch in series with the coil. Coil current feedback is used to adjust the PWM frequency and/or duty cycle so as to maintain the current through the coil at a certain level to maintain a desired holding force on the door lock. A degauss circuit inline with the current flowing through the coil is provided. When triggered either in an uncontrolled or controlled manner, a series RLC circuit that includes the coil inductance and resistance causes ringing to occur whereby the coil current reverses direction with sufficient amplitude and duration to degauss the coil.

公开(公告)号：US20170077380A1

公开(公告)日：2017-03-16

申请号：US15272268

申请日：2016-09-21

Applicant: D-Wave Systems Inc.

Inventor： Sergey V. Uchaykin

IPC: H01L39/02 ,  G06N99/00 ,  H01L27/18 ,  H05K9/00 ,  H01F13/00

CPC classification number: H01L39/02 ,  G05F7/00 ,  G06N99/002 ,  H01F13/006 ,  H01L27/18 ,  H01L39/04 ,  H05K9/0071

Abstract: Systems and methods for magnetic shielding are described. A magnetic shield formed of a material having a high magnetic permeability may be degaussed using a toroidal degaussing coil. The toroidal degaussing coil may enclose at least a portion of the shield. Magnetic field gradients may be actively compensated using multiple magnetic field sensors and local compensation coils. Trapped fluxons may be removed by an application of Lorentz force wherein an electrical current is passed through a superconducting plane.

Abstract translation: 描述了用于磁屏蔽的系统和方法。 由具有高导磁率的材料形成的磁屏可以使用环形消磁线圈消磁。 环形消磁线圈可以包围屏蔽件的至少一部分。 可以使用多个磁场传感器和局部补偿线圈来积极地补偿磁场梯度。 捕获的物质可以通过施加洛仑兹力来去除，其中电流通过超导平面。

公开(公告)号：US09067284B2

公开(公告)日：2015-06-30

申请号：US14448823

申请日：2014-07-31

Applicant: Miha Zakotnik ,  Peter Afiuny ,  Scott Dunn ,  Catalina Oana Tudor

Inventor： Miha Zakotnik ,  Peter Afiuny ,  Scott Dunn ,  Catalina Oana Tudor

IPC: H01F1/057 ,  B23P19/04 ,  H01F1/08 ,  H01F41/02 ,  H01F41/00 ,  B01J10/00 ,  B22F1/00 ,  B22F9/04

CPC classification number: H01F41/0253 ,  B01J10/005 ,  B22F1/0003 ,  B22F1/0088 ,  B22F3/10 ,  B22F3/24 ,  B22F8/00 ,  B22F9/04 ,  B22F2009/041 ,  B22F2998/10 ,  B23P19/04 ,  B23P23/04 ,  B23Q7/02 ,  B23Q7/12 ,  C22C38/002 ,  C22C38/005 ,  C22C38/06 ,  C22C38/08 ,  C22C38/10 ,  C22C38/14 ,  H01F1/0536 ,  H01F1/057 ,  H01F1/0573 ,  H01F1/0577 ,  H01F1/086 ,  H01F13/006 ,  H01F41/00 ,  H01F41/0266 ,  Y02P10/24 ,  Y02W30/541 ,  Y10T29/49755 ,  Y10T29/49757 ,  Y10T29/49821 ,  Y10T29/53274 ,  Y10T29/53404 ,  Y10T83/202 ,  B22F1/0085

Abstract: Recycled Nd—Fe—B sintered magnets. One of the recycled Nd—Fe—B sintered magnets includes a composition of WaRbAc, where waste material W comprises material from a waste Nd—Fe—B sintered magnet, rare earth material R comprises at least one of: Nd or Pr, and elemental additives A comprises at least one of: Nd, Pr, Dy, Co, Cu, or Fe, and indices a, b, and c indicate atomic percentages of the corresponding compositions or elements and the atomic percentages of the rare earth material R and the elemental additives A have values satisfying Nd[0.1-19 at. %*s(Nd), x]Pr[0.1-19 at. %*s(Pr), y]Dy[0.1-19 at. %*s(Dy), z]Co[0 at. %, d]Cu[0 at. %, e]Fe[0 at. %, f] where [m,n] means a range from minimum m and maximum n, s(t) is the atomic percent of element t in starting composition, x=18 at. %-[81,99.9] at. %*(s(Nd)+s(Pr)+s(Dy)), y=18 at. %-[81,99.9] at. %*(s(Nd)+s(Pr)+s(Dy)), z=18 at. %-[81,99.9] at. %*(s(Nd)+s(Pr)+s(Dy)), d=3 at. %-[81,99.9] at. %*s(Co), e=0.3 at. %-[81,99.9] at. %*s(Cu), and f=77 at. %-[81,99.9] at. %*(s(Fe)+s(Co)).

Abstract translation: 回收Nd-Fe-B烧结磁体。 回收的Nd-Fe-B烧结磁体中的一种包括WaRbAc的组合物，其中废料W包括来自废Nd-Fe-B烧结磁体的材料，稀土材料R包括Nd或Pr中的至少一种和元素 添加剂A包括Nd，Pr，Dy，Co，Cu或Fe中的至少一种，并且索引a，b和c表示相应组成或元素的原子百分比和稀土材料R和 元素添加剂A具有满足Nd [0.1-19 at。 ％* s（Nd），x] Pr [0.1-19 at。 ％* s（Pr），y] Dy [0.1-19 at。 ％* s（Dy），z] Co [0 at。 ％，d] Cu [0 at。 ％，e] Fe [0 at。 ％，f]其中[m，n]表示从最小m和最大值n的范围，s（t）是起始组成中元素t的原子百分比，x = 18 at。 ％ - [81,99.9] at。 ％*（s（Nd）+ s（Pr）+ s（Dy）），y = 18at。 ％ - [81,99.9] at。 ％*（s（Nd）+ s（Pr）+ s（Dy）），z = 18at。 ％ - [81,99.9] at。 ％*（s（Nd）+ s（Pr）+ s（Dy）），d = 3at。 ％ - [81,99.9] at。 ％* s（Co），e = 0.3 at。 ％ - [81,99.9] at。 ％* s（Cu），f = 77at。 ％ - [81,99.9] at。 ％*（s（Fe）+ s（Co））。

公开(公告)号：US09044834B2

公开(公告)日：2015-06-02

申请号：US14307267

申请日：2014-06-17

Applicant: Miha Zakotnik ,  Peter Afiuny ,  Scott Dunn ,  Catalina Oana Tudor

Inventor： Miha Zakotnik ,  Peter Afiuny ,  Scott Dunn ,  Catalina Oana Tudor

IPC: H01F1/053 ,  H01F1/057 ,  B23P19/04 ,  H01F1/08 ,  H01F41/02 ,  H01F41/00 ,  B01J10/00 ,  B22F1/00 ,  B22F9/04

CPC classification number: H01F41/0253 ,  B01J10/005 ,  B22F1/0003 ,  B22F1/0088 ,  B22F3/10 ,  B22F3/24 ,  B22F8/00 ,  B22F9/04 ,  B22F2009/041 ,  B22F2998/10 ,  B23P19/04 ,  B23P23/04 ,  B23Q7/02 ,  B23Q7/12 ,  C22C38/002 ,  C22C38/005 ,  C22C38/06 ,  C22C38/08 ,  C22C38/10 ,  C22C38/14 ,  H01F1/0536 ,  H01F1/057 ,  H01F1/0573 ,  H01F1/0577 ,  H01F1/086 ,  H01F13/006 ,  H01F41/00 ,  H01F41/0266 ,  Y02P10/24 ,  Y02W30/541 ,  Y10T29/49755 ,  Y10T29/49757 ,  Y10T29/49821 ,  Y10T29/53274 ,  Y10T29/53404 ,  Y10T83/202 ,  B22F1/0085

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for recycling magnetic material to restore or improve the magnetic performance. One of the methods includes demagnetizing magnetic material from a waste magnet assembly by cyclic heating and cooling of the magnetic material, fragmenting adhesives attached to the magnetic material, cracking coating layers of the magnetic material, and subjecting the magnetic material to at least one of: a) a mechanical treatment or b) a chemical treatment, to remove the coating layers and prepare the magnetic material without impurities, fragmenting the demagnetized magnetic material to form a powder, and mixing the powder with a rare earth material R and an elemental additive A to produce a homogeneous powder, wherein the rare earth material R comprises at least one of: Nd or Pr, and the elemental additive A comprises at least one of: Nd, Pr, Dy, Co, Cu, and Fe.

Abstract translation: 方法，系统和装置，包括在计算机存储介质上编码的计算机程序，用于回收磁性材料以恢复或改善磁性能。 其中的一种方法包括通过磁性材料的循环加热和冷却，附着在磁性材料上的粘合剂粘合剂，磁性材料的裂化涂层，以及对磁性材料进行以下至少一种的处理，从废弃磁体组件中去磁磁性材料： a）机械处理或b）化学处理，去除涂层并制备没有杂质的磁性材料，使去磁的磁性材料碎裂形成粉末，并将粉末与稀土材料R和元素添加剂A混合 以产生均匀的粉末，其中稀土材料R包括Nd或Pr中的至少一种，并且元素添加剂A包括Nd，Pr，Dy，Co，Cu和Fe中的至少一种。

公开(公告)号：US09035733B2

公开(公告)日：2015-05-19

申请号：US14225766

申请日：2014-03-26

Applicant: Gerard M Ludtka ,  Gail M Ludtka ,  John B Wilgen ,  Bart L Murphy

Inventor： Gerard M Ludtka ,  Gail M Ludtka ,  John B Wilgen ,  Bart L Murphy

IPC: H01F7/20 ,  B65G17/00 ,  C21D9/00 ,  H01F1/153 ,  H01F7/02 ,  H01F13/00 ,  B65G17/32 ,  C21D1/04

CPC classification number: B65G17/002 ,  B65G17/32 ,  C21D1/04 ,  C21D9/0025 ,  H01F1/15341 ,  H01F7/0242 ,  H01F13/00 ,  H01F13/003 ,  H01F13/006

Abstract: A carriage for high magnetic field environments includes a plurality of work-piece separators disposed in an operable relationship with a work-piece processing magnet having a magnetic field strength of at least 1 Tesla for supporting and separating a plurality of work-pieces by a preselected, essentially equal spacing, so that, as a first work-piece is inserted into the magnetic field, a second work-piece is simultaneously withdrawn from the magnetic field, so that an attractive magnetic force imparted on the first work-piece offsets a resistive magnetic force imparted on the second work-piece.

Abstract translation: 用于高磁场环境的滑架包括多个工件分离器，其与具有至少1特斯拉的磁场强度的工件处理磁体以可操作的关系设置，用于通过预先选择的多个工件分离多个工件 ，基本上相等的间隔，使得当第一工件插入到磁场中时，第二工件同时从磁场中退出，使得施加在第一工件上的有吸引力的磁力抵消了电阻 施加在第二工件上的磁力。

公开(公告)号：US20150085418A1

公开(公告)日：2015-03-26

申请号：US14184866

申请日：2014-02-20

Applicant: Maxim Integrated Products, Inc.

Inventor： Siro Buzzetti ,  Marco Demicheli ,  Danilo Ranieri

IPC: H01H47/00 ,  H01F27/34

CPC classification number: H01H47/22 ,  H01F13/006

Abstract: An integrated circuit for demagnetizing an inductive load includes a first switch to control current supplied by a voltage supply to the inductive load. A Zener diode includes an anode connected to a control terminal of the first switch and a cathode connected to the voltage supply. A second switch includes a control terminal and first and second terminals. A temperature sensing circuit is configured to sense a temperature of the first switch and to generate a sensed temperature. A comparing circuit includes inputs that receive a reference temperature and the sensed temperature and an output connected to the control terminal of the second switch.

Abstract translation: 用于使感性负载去磁的集成电路包括第一开关，用于控制由电感负载提供的电压。 齐纳二极管包括连接到第一开关的控制端子的阳极和连接到电压源的阴极。 第二开关包括控制端子和第一和第二端子。 温度感测电路被配置为感测第一开关的温度并产生感测的温度。 比较电路包括接收参考温度和感测温度的输入以及连接到第二开关的控制端的输出。

公开(公告)号：US20140369881A1

公开(公告)日：2014-12-18

申请号：US14307267

申请日：2014-06-17

Applicant: Miha Zakotnik ,  Peter Afiuny ,  Scott Dunn ,  Catalina Oana Tudor

Inventor： Miha Zakotnik ,  Peter Afiuny ,  Scott Dunn ,  Catalina Oana Tudor

IPC: H01F1/08 ,  H01F41/02

CPC classification number: H01F41/0253 ,  B01J10/005 ,  B22F1/0003 ,  B22F1/0088 ,  B22F3/10 ,  B22F3/24 ,  B22F8/00 ,  B22F9/04 ,  B22F2009/041 ,  B22F2998/10 ,  B23P19/04 ,  B23P23/04 ,  B23Q7/02 ,  B23Q7/12 ,  C22C38/002 ,  C22C38/005 ,  C22C38/06 ,  C22C38/08 ,  C22C38/10 ,  C22C38/14 ,  H01F1/0536 ,  H01F1/057 ,  H01F1/0573 ,  H01F1/0577 ,  H01F1/086 ,  H01F13/006 ,  H01F41/00 ,  H01F41/0266 ,  Y02P10/24 ,  Y02W30/541 ,  Y10T29/49755 ,  Y10T29/49757 ,  Y10T29/49821 ,  Y10T29/53274 ,  Y10T29/53404 ,  Y10T83/202 ,  B22F1/0085

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for recycling magnetic material to restore or improve the magnetic performance. One of the methods includes demagnetizing magnetic material from a waste magnet assembly by cyclic heating and cooling of the magnetic material, fragmenting adhesives attached to the magnetic material, cracking coating layers of the magnetic material, and subjecting the magnetic material to at least one of: a) a mechanical treatment or b) a chemical treatment, to remove the coating layers and prepare the magnetic material without impurities, fragmenting the demagnetized magnetic material to form a powder, and mixing the powder with a rare earth material R and an elemental additive A to produce a homogeneous powder, wherein the rare earth material R comprises at least one of: Nd or Pr, and the elemental additive A comprises at least one of: Nd, Pr, Dy, Co, Cu, and Fe.

Abstract translation: 方法，系统和装置，包括在计算机存储介质上编码的计算机程序，用于回收磁性材料以恢复或改善磁性能。 其中的一种方法包括通过磁性材料的循环加热和冷却，附着在磁性材料上的粘合剂粘合剂，磁性材料的裂化涂层，以及对磁性材料进行以下至少一种的处理，从废弃磁体组件中去磁磁性材料： a）机械处理或b）化学处理，去除涂层并制备没有杂质的磁性材料，使去磁的磁性材料碎裂形成粉末，并将粉末与稀土材料R和元素添加剂A混合 以产生均匀的粉末，其中稀土材料R包括Nd或Pr中的至少一种，并且元素添加剂A包括Nd，Pr，Dy，Co，Cu和Fe中的至少一种。

公开(公告)号：US20140366687A1

公开(公告)日：2014-12-18

申请号：US14448823

申请日：2014-07-31

Applicant: Miha ZAKOTNIK ,  Peter Afiuny ,  Catalina Oana Tudor ,  Scott Dunn

Inventor： Miha ZAKOTNIK ,  Peter Afiuny ,  Catalina Oana Tudor ,  Scott Dunn

IPC: H01F1/057

CPC classification number: H01F41/0253 ,  B01J10/005 ,  B22F1/0003 ,  B22F1/0088 ,  B22F3/10 ,  B22F3/24 ,  B22F8/00 ,  B22F9/04 ,  B22F2009/041 ,  B22F2998/10 ,  B23P19/04 ,  B23P23/04 ,  B23Q7/02 ,  B23Q7/12 ,  C22C38/002 ,  C22C38/005 ,  C22C38/06 ,  C22C38/08 ,  C22C38/10 ,  C22C38/14 ,  H01F1/0536 ,  H01F1/057 ,  H01F1/0573 ,  H01F1/0577 ,  H01F1/086 ,  H01F13/006 ,  H01F41/00 ,  H01F41/0266 ,  Y02P10/24 ,  Y02W30/541 ,  Y10T29/49755 ,  Y10T29/49757 ,  Y10T29/49821 ,  Y10T29/53274 ,  Y10T29/53404 ,  Y10T83/202 ,  B22F1/0085

Abstract: Recycled Nd—Fe—B sintered magnets. One of the recycled Nd—Fe—B sintered magnets includes a composition of WaRbAc, where waste material W comprises material from a waste Nd—Fe—B sintered magnet, rare earth material R comprises at least one of: Nd or Pr, and elemental additives A comprises at least one of: Nd, Pr, Dy, Co, Cu, or Fe, and indices a, b, and c indicate atomic percentages of the corresponding compositions or elements and have values satisfying Nd[0.1-19 at. %*s(Nd), x]Pr[0.1-19 at. %*s(Pr),y]Dy[0.1-19%*s(Dy),z]Co[0,d]Cu[0,e]Fe[0,f] where [m, n] means a range from minimum m and maximum n, s(t) is the atomic percent of element t in starting composition; f(t) is the atomic percent of element t in final composition, x=18−[81, 99.9] at. %*(s(Nd)+s(Pr)+s(Dy)), y=18−[81, 99.9] at. %*(s(Nd)+s(Pr)+s(Dy)), z=18−[81, 99.9] at. %*(s(Nd)+s(Pr)+s(Dy)), d=3−[81, 99.9] at. %*s(Co), e=0.3−[81, 99.9] at. %*s(Cu), and f=77−[81, 99.9] at. %*(s(Fe)+s(Co)).

Abstract translation: 回收Nd-Fe-B烧结磁体。 回收的Nd-Fe-B烧结磁体中的一种包括WaRbAc的组合物，其中废料W包括来自废Nd-Fe-B烧结磁体的材料，稀土材料R包括Nd或Pr中的至少一种和元素 添加剂A包括Nd，Pr，Dy，Co，Cu或Fe中的至少一种，并且指数a，b和c表示相应组成或元素的原子百分比，并具有满足Nd [0.1-19 at。 ％* s（Nd），x] Pr [0.1-19 at。 ％* s（Pr），y] Dy [0.1-19％* s（Dy），z] Co [0，d] Cu [0，e] Fe [0，f]其中[m，n] 从最小m和最大n，s（t）是起始组成中元素t的原子百分比; f（t）是最终组成中元素t的原子百分比，x = 18- [81，99.9] at。 ％*（s（Nd）+ s（Pr）+ s（Dy）），y = 18- [81,9.9]。 ％*（s（Nd）+ s（Pr）+ s（Dy）），z = 18- [81,999] ％*（s（Nd）+ s（Pr）+ s（Dy）），d = 3- [81,9.9] ％* s（Co），e = 0.3- [81,9.9] at。 ％* s（Cu），f = 77- [81,9.9]。 ％*（s（Fe）+ s（Co））。

公开(公告)号：US20140078636A1

公开(公告)日：2014-03-20

申请号：US13863962

申请日：2013-04-16

Applicant: D-WAVE SYSTEMS INC.

Inventor： Sergey V. Uchaykin

IPC: G05F7/00

CPC classification number: H01L39/02 ,  G05F7/00 ,  G06N99/002 ,  H01F13/006 ,  H01L27/18 ,  H01L39/04 ,  H05K9/0071

Abstract: Systems and methods for magnetic shielding are described. A magnetic shield formed of a material having a high magnetic permeability may be degaussed using a toroidal degaussing coil. The toroidal degaussing coil may enclose at least a portion of the shield. Magnetic field gradients may be actively compensated using multiple magnetic field sensors and local compensation coils. Trapped fluxons may be removed by an application of Lorentz force wherein an electrical current is passed through a superconducting plane.

Abstract translation: 描述了用于磁屏蔽的系统和方法。 由具有高导磁率的材料形成的磁屏可以使用环形消磁线圈消磁。 环形消磁线圈可以包围屏蔽件的至少一部分。 可以使用多个磁场传感器和局部补偿线圈来积极地补偿磁场梯度。 捕获的物质可以通过施加洛仑兹力来去除，其中电流通过超导平面。

公开(公告)号：US20130201591A1

公开(公告)日：2013-08-08

申请号：US13776827

申请日：2013-02-26

Applicant: STRATTEC SECURITY CORPORATION

Inventor： Steven J. Dimig ,  Gregory J. Organek ,  Michael G. Feucht

IPC: H01F7/18

CPC classification number: H01F7/18 ,  B60N2/919 ,  B60R25/021 ,  B60R25/02147 ,  B60R25/08 ,  E05B47/0004 ,  E05B47/0005 ,  E05B47/0006 ,  E05B53/008 ,  E05B81/00 ,  E05B81/08 ,  E05B81/14 ,  E05C17/003 ,  E05C19/166 ,  F16D27/004 ,  F16D27/06 ,  F16D27/112 ,  H01F7/04 ,  H01F7/121 ,  H01F7/13 ,  H01F13/00 ,  H01F13/006 ,  H02K33/02 ,  Y10T70/7062

Abstract: Residual magnetic locks, brakes, rotation inhibitors, clutches, actuators, and latches. The residual magnetic devices can include a core housing and an armature. The residual magnetic devices can include a coil that receives a magnetization current to create an irreversible residual magnetic force between the core housing and the armature.

Abstract translation: 剩余磁锁，制动器，旋转抑制器，离合器，执行器和闩锁。 剩余的磁性装置可以包括芯壳体和电枢。 残余磁性装置可以包括接收磁化电流以在芯壳体和电枢之间产生不可逆残余磁力的线圈。