公开(公告)号：US09194368B2

公开(公告)日：2015-11-24

申请号：US13276055

申请日：2011-10-18

Applicant: David Carmein ,  Dawn White ,  Randy C. Stevenson

Inventor： David Carmein ,  Dawn White ,  Randy C. Stevenson

IPC: G01N21/85 ,  F03D7/00 ,  F03B13/00 ,  H02N3/00

CPC classification number: F03B13/00 ,  F03D7/00 ,  H02N3/00

Abstract: An electro-hydrodynamic system that extracts energy from a gas stream, which includes an injector that injects a first species of particles having the same polarity into the gas stream, wherein particle movement with the gas stream is opposed by a first electric field; an electric field generator that generates a second electric field opposing the first, such that the net electric field at a predetermined distance downstream from the injector is approximately zero; an upstream collector that collects a second species of particles having a polarity opposite the first particle species; a downstream collector that collects the charged particle; and a load coupled between the downstream collector and the upstream collector, wherein the load converts the kinetic energy of the gas stream into electric power.

Abstract translation: 一种从气流中提取能量的电流力学系统，其包括将具有相同极性的第一种颗粒注入到气流中的喷射器，其中与气流的颗粒运动由第一电场相对; 电场发生器，其产生与所述第一电场相对的第二电场，使得所述喷射器下游预定距离处的净电场近似为零; 收集具有与第一颗粒物质相反极性的第二种颗粒的上游收集器; 收集带电粒子的下游收集器; 以及耦合在下游收集器和上游收集器之间的负载，其中负载将气流的动能转换成电力。

公开(公告)号：US08421047B2

公开(公告)日：2013-04-16

申请号：US12357862

申请日：2009-01-22

Applicant: David Carmein ,  Dawn White

Inventor： David Carmein ,  Dawn White

IPC: G01N21/85

CPC classification number: H02K57/003 ,  H02N3/00

Abstract: A system for electro-hydrodynamically extracting energy from wind includes an upstream collector that is biased at an electric potential and induces an electric field. An injector introduces a particle into the electric field. The wind drag on the particle is at least partially opposed by a force of the electric field on the particle. A sensor monitors an ambient atmospheric condition, and a controller changes a parameter of the injector in response to a change in the atmospheric condition.

Abstract translation: 用于从水中电动力学提取能量的系统包括被偏置在电位并且引起电场的上游收集器。 注射器将一个粒子引入电场。 颗粒上的风阻力至少部分地与颗粒上的电场的力相反。 传感器监测环境大气条件，并且控制器响应于大气条件的变化而改变喷射器的参数。

公开(公告)号：US20090218910A1

公开(公告)日：2009-09-03

申请号：US12357862

申请日：2009-01-22

Applicant: David Carmein ,  Dawn White

Inventor： David Carmein ,  Dawn White

IPC: H02N1/00

CPC classification number: H02K57/003 ,  H02N3/00

Abstract: A system for electro-hydrodynamically extracting energy from wind includes an upstream collector that is biased at an electric potential and induces an electric field. An injector introduces a particle into the electric field. The wind drag on the particle is at least partially opposed by a force of the electric field on the particle. A sensor monitors an ambient atmospheric condition, and a controller changes a parameter of the injector in response to a change in the atmospheric condition.

Abstract translation: 用于从水中电动力学提取能量的系统包括被偏置在电位并且引起电场的上游收集器。 注射器将一个粒子引入电场。 颗粒上的风阻力至少部分地与颗粒上的电场的力相反。 传感器监测环境大气条件，并且控制器响应于大气条件的变化而改变喷射器的参数。

公开(公告)号：US20060137775A1

公开(公告)日：2006-06-29

申请号：US11280711

申请日：2005-11-16

Applicant: Dawn White

Inventor： Dawn White

IPC: C22F1/04

CPC classification number: C22F1/04

Abstract: A system, method, and articles are disclosed with respect to depositing aluminum or alloys thereof, utilizing ultrasonic object consolidation. The method aspect of the invention comprises the steps of heat-treating an aluminum-based feedstock and ultrasonically consolidating the feedstock to a substrate to produce a part or a repair of a part, as might be required in an aerospace or aircraft structure. The feedstock may be solution heat-treated. This would include situations wherein the feedstock is solution heat treated off-line and maintained under controlled temperature conditions to prevent precipitation of solutes prior to the ultrasonic consolidation. Alternatively, the feedstock may be heat-treated on-line by passing it through a temperature- and/or atmosphere-controlled chamber prior to ultrasonic consolidation. The feedstock may be supported to minimize slumping due to creep. The feedstock may be T4, or may be aged, to T6, for example. The feedstock may be allowed to age naturally at room temperature, or a heat source may be used to artificially age the consolidated feedstock. The substrate may be aged or unaged. The source of the aluminum-based feedstock is in the form of tapes, sheets, wires, or droplets.

Abstract translation: 关于沉积铝或其合金，利用超声波对象固结来公开系统，方法和制品。 本发明的方法方面包括以下步骤：对铝基原料进行热处理，并将原料超声固化至基底以产生零件或部件的修复，如在航空航天或航空器结构中可能需要的。 原料可以进行固溶热处理。 这将包括这样的情况，其中原料被离线固化热处理并保持在受控温度条件下以防止在超声波固结之前沉淀溶质。 或者，原料可以在超声波固结之前通过将其通过温度和/或大气控制的室进行在线热处理。 可以支撑原料以最小化由于蠕变引起的坍落度。 原料可以是T4，或可以老化至T6。 原料可以在室温下自然老化，或者可以使用热源人工老化固结的原料。 基材可以老化或未老化。 铝基原料的来源是带，片，线或液滴的形式。

公开(公告)号：US06814823B1

公开(公告)日：2004-11-09

申请号：US10088040

申请日：2002-03-14

Applicant: Dawn White

Inventor： Dawn White

IPC: G06F1900

CPC classification number: G05B19/4099 ,  B22F3/105 ,  B22F3/1055 ,  B22F2999/00 ,  B23K11/0013 ,  B23K20/10 ,  B23K20/103 ,  B23K20/1215 ,  B23K20/129 ,  B23P6/002 ,  B23P15/00 ,  B23P2700/01 ,  B23P2700/12 ,  B29C64/141 ,  B29C70/382 ,  B29C70/386 ,  B29C73/00 ,  B32B37/02 ,  B32B2038/1891 ,  B32B2310/028 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  B33Y70/00 ,  C22C47/14 ,  Y02P10/295 ,  Y02P90/265 ,  B22F2202/01 ,  B22F2202/06

Abstract: A system and a method of fabricating a three-dimensional object consolidates material increments in accordance with a description of the object using a process that produces an atomically clean faying surface between the increments without melting the material in bulk. The CAD system (60) interfaces with a numerical controller (70), which controls an actuation system. The actuation system brings the support feed unit (62) the support ultrasonic welding unit (66), the object feed unit (64) and the object ultrasonic welding unit (68) into proper position in the work area (75), so that the ultrasonic consolidation of the layers takes place according to the CAD description of the object. In alternative embodiments, electrical resistance, and frictional methodologies are used for object consolidation. The invention further facilitates the construction and repair of dense objects, including fiber-reinforced composites and aerospace structures.

Abstract translation: 根据对象的描述，制造三维物体的系统和方法使用在增量之间产生原子清洁的接合表面而不使体积熔化材料的过程来整合材料增量。 CAD系统（60）与控制致动系统的数字控制器（70）相连接。 致动系统将支撑供给单元（62），支撑超声波焊接单元（66），物体馈送单元（64）和物体超声波焊接单元（68）置于工作区域（75）中的适当位置，使得 层的超声波合并根据对象的CAD描述进行。 在替代实施例中，电阻和摩擦方法用于对象合并。 本发明进一步促进了包括纤维增强复合材料和航空航天结构在内的致密物体的构造和修复。

公开(公告)号：US06457629B1

公开(公告)日：2002-10-01

申请号：US09679163

申请日：2000-10-04

Applicant: Dawn White

Inventor： Dawn White

IPC: B23K2012

CPC classification number: G05B19/4099 ,  B23K20/10 ,  B23K20/103 ,  B23K20/1215 ,  B29C64/106 ,  B29C64/40 ,  B29C73/02 ,  B33Y10/00 ,  B33Y30/00 ,  G05B2219/49007 ,  G05B2219/49015

Abstract: Friction heating and bonding are used to consolidate sequentially applied metals, plastics or composites to previously deposited material so as to form a bulk deposit in a desired shape. Monolithic or composite sheets, tapes and filaments can be consolidated using the approach. A system according to the invention includes a source of friction; a mechanism for applying a forging load between a feedstock power supply and a work surface; a work-head, which may have various configurations depending on the geometry of the feedstock to be used; a material feeding system; and a computer-controlled actuation system which controls the placement of material increments added to an object being built. A computer model of the object to be built is used to generate commands to produce the object additively and automatically. The approach provides a solid, freeform fabrication technique that requires no tooling, operates in the solid state, and creates a bond directly at the faying surfaces (i.e., acts only at the location where bonding/consolidation of the material increments is desired).

Abstract translation: 摩擦加热和粘合用于将顺序施加的金属，塑料或复合材料固结到预先沉积的材料上，以形成所需形状的体积沉积物。 使用该方法可以整合单片或复合片材，胶带和细丝。 根据本发明的系统包括摩擦源; 用于在原料电源和工作表面之间施加锻造载荷的机构; 工作头，其可以根据待使用的原料的几何形状具有各种构型; 供料系统; 以及计算机控制的致动系统，其控制添加到正被建造物体的物料增量的位置。 要建立的对象的计算机模型用于生成加法和自动生成对象的命令。 该方法提供了一种固体，自由形式的制造技术，其不需要工具，以固态操作，并且直接在接合表面处形成结合（即，仅在需要材料增加的粘结/固结的位置处作用）。

公开(公告)号：US07309400B2

公开(公告)日：2007-12-18

申请号：US10393148

申请日：2003-03-20

Applicant: Dawn White

Inventor： Dawn White

IPC: B32B37/00

CPC classification number: B29C41/02 ,  B23K26/34 ,  B29C37/005 ,  B29C64/20 ,  B29C65/00 ,  B29K2995/0073 ,  B33Y10/00

Abstract: This invention improves upon existing approaches by providing a method for improving the uniformity of additive manufacturing processes of the type wherein material increments are consolidated to produce a three-dimensional object. According to one aspect of the invention, the method comprises the steps of tacking an increment during the method to minimize creep, then fully consolidating that increment to the underlying material. According to a different aspect of the invention, the method includes a step of steering the welding head or the feeding of the increments to ensure that the relative orientation of the contact line of the welding head as defined by the lowest surface is parallel to the central axis. As yet a further aspect of the invention, a different method includes a step of placing the increment so as to minimize the ratio of deformed to undeformed material. Such placement may be carried out manually over automatically.

Abstract translation: 本发明通过提供一种用于提高其中材料增量被固结以产生三维物体的类型的添加剂制造工艺的均匀性的方法来改进现有方法。 根据本发明的一个方面，所述方法包括以下步骤：在所述方法期间加固增量以使蠕变最小化，然后将该增量完全整合到下面的材料。 根据本发明的另一方面，该方法包括转向焊接头或递送的步骤，以确保由最下表面限定的焊接头的接触线的相对取向平行于中心 轴。 作为本发明的另一方面，不同的方法包括放置增量以使变形与未变形材料的比例最小化的步骤。 这种放置可以自动手动执行。

公开(公告)号：US20070166349A1

公开(公告)日：2007-07-19

申请号：US11623189

申请日：2007-01-15

Applicant: Dawn White

Inventor： Dawn White

IPC: A61F2/28 ,  B22F1/02

CPC classification number: A61L27/047 ,  A61F2/3094 ,  A61F2002/30952 ,  A61F2310/00011 ,  B22F3/008 ,  B22F2998/00 ,  B33Y80/00 ,  B22F9/008

Abstract: Orthopaedic implants are formed using processes whereby a metal alloy is cooled at a rate rapid enough that an amorphous or partially amorphous structure is retained. In the preferred embodiment, the metal alloy is a calcium-based metal alloy. The fabrication process may include die-casting or additive manufacturing process of the type wherein material increments are consolidated in accordance with the description without melting the material in bulk. Such processes include ultrasonic consolidation, electrical resistance consolidation, and frictional consolidation. The material increments are provided in the form of sheets, elongated tapes, filaments, dots or droplets. A preferred method includes a casting process to produce an initial form having an outer surface followed by an additive manufacturing process used to build up at least a portion of the outer surface. For example, the portion may include an intramedullary stem, bone-ingrowth surface, or articulating surface.

Abstract translation: 使用以金属合金以足够快的速度冷却非晶或部分无定形结构的速度的方法来形成矫形植入物。 在优选实施例中，金属合金是钙基金属合金。 该制造方法可以包括这种类型的压铸或添加剂制造工艺，其中根据描述固化材料增量而不使体积熔化材料。 这种方法包括超声波固结，电阻整合和摩擦固结。 材料增量以片材，细长带，丝，点或液滴的形式提供。 优选的方法包括铸造工艺以产生具有外表面的初始形状，随后是用于构建外表面的至少一部分的添加剂制造工艺。 例如，该部分可以包括髓内梗，骨内生面或关节表面。

公开(公告)号：US07244323B2

公开(公告)日：2007-07-17

申请号：US10646599

申请日：2003-08-21

Applicant: Dawn White ,  David Carmein ,  Shyam Keshavmurthy

Inventor： Dawn White ,  David Carmein ,  Shyam Keshavmurthy

IPC: B32B37/00

CPC classification number: B29C37/00 ,  B22F3/004 ,  B22F2003/1046 ,  B22F2998/00 ,  B29C35/0261 ,  B29C37/0067 ,  B29C64/141 ,  B29C64/40 ,  B33Y10/00 ,  B22F3/008

Abstract: Materials and methods inhibit the localized build-up of material with respect to certain additive manufacturing processes, including those based on ultrasonic consolidation. Where an object is fabricated by consolidating material increments from a feedstock in accordance with a description of the object, the invention prevents the consolidation in specified regions to provide for an intrinsic support or to otherwise build a part or component in accordance with the description. The object being fabricated, the feedstock, or both, may be treated so as to inhibit the consolidation of material increments in the localized area. That is, such treatment may affect the surface chemistry of the feedstock to prevent local bonding, or the treatment may be applied to a previously built surface of the object. The treatment may include the introduction of an oxidizer, such as a metal nitrate, chlorate, chromate, peroxide, or manganate; a base or alkali; or a coating of a lubricious material such as tin, Teflon, or petroleum distillates to prevent the breakup of an oxide layer.

Abstract translation: 材料和方法抑制了某些添加剂制造工艺（包括基于超声波固结的加工制造过程）材料的局部积聚。 在通过根据对象的说明从原料合并材料增量来制造物体的情况下，本发明防止在特定区域中的合并提供固有支撑件或根据描述构建零件或部件。 可以处理正在制造的物体，原料或两者，以便抑制在局部区域中的材料增量的固结。 也就是说，这种处理可能影响原料的表面化学性质，以防止局部粘合，或者可以将处理施加到物体的先前构建的表面上。 处理可以包括引入氧化剂，例如金属硝酸盐，氯酸盐，铬酸盐，过氧化物或锰酸盐; 碱或碱; 或润滑材料如锡，特氟隆或石油馏出物的涂层以防止氧化物层的分解。

公开(公告)号：US20060174994A1

公开(公告)日：2006-08-10

申请号：US11274974

申请日：2005-11-16

Applicant: Dawn White

Inventor： Dawn White

IPC: B32B37/00 ,  B29C65/00

CPC classification number: B23K20/10 ,  B29C64/141 ,  B29C64/40 ,  B29C65/085 ,  B29C66/83411 ,  B29C66/83413 ,  B29C66/91411 ,  B29C66/9161 ,  B29C66/9241 ,  B29C66/934 ,  B29C66/9516 ,  B29C66/963 ,  B29C66/965 ,  B29C66/966

Abstract: Disclosed is method of enhancing bond quality in an ultrasonic consolidation process using a sonotrode having a power output level. The preferred embodiment includes the steps of inputting a plurality of process parameters associated with a localized geometry over which the ultrasonic consolidation is occurring, and varying the relationship between these parameters to control the power output level to optimize bond quality between layers of material as they are consolidated. The process parameters, alone or in combination, may include the speed of the consolidation; the amplitude of the ultrasonic energy; applied force; and/or temperature.

Abstract translation: 公开了使用具有功率输出电平的超声波发生器在超声波固结处理中提高键合质量的方法。 优选实施例包括以下步骤：输入与超声波固结发生的局部几何相关联的多个工艺参数，并且改变这些参数之间的关系以控制功率输出水平，以优化物料层之间的粘合质量 巩固 过程参数单独或组合可能包括合并速度; 超声能量的振幅; 施加力 和/或温度。