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    Process for imparting an electrostatic charge to powders to render them useful for coating application
    32.
    发明授权
    Process for imparting an electrostatic charge to powders to render them useful for coating application 失效
    给粉末赋予静电荷以使其可用于涂布应用的方法

    公开(公告)号：US5585426A

    公开(公告)日：1996-12-17

    申请号：US320892

    申请日：1994-10-05

    Applicant: Barbara E. Williams ,  Ian Harpur ,  Graham Hearn

    Inventor： Barbara E. Williams ,  Ian Harpur ,  Graham Hearn

    IPC: B05B5/08 ,  B05B5/16 ,  B05B7/14 ,  B05D1/06 ,  C08L63/00

    CPC classification number: B05B7/1472 ,  B05B5/087 ,  B05B5/1683 ,  B05D1/06 ,  Y10S524/904

    Abstract: A process for improving the electrostatic charge developed on a resin powder composition for electrostatic coating of solid objects and the method of application thereof. The resin powder comprises (i) a thermosetting or thermoplastic resin and (ii) an electrostatic property modifying agent (polyalkylene ether, polyalkylene glycol, polyethoxylated stearyl alcohol) incorporated in the resin or on the surface of the resin. The methods of application of the powder involves charging the powder by electrical induction/conduction and spraying the charged powder onto a grounded solid object to which it adheres prior to the thermal fusing to produce a permanent finish.

    Abstract translation: 用于改善在固体物体的静电涂布用树脂粉末组合物上产生的静电电荷的方法及其应用方法。 树脂粉末包含（i）热固性或热塑性树脂和（ii）掺入树脂中或树脂表面上的静电性能改性剂（聚亚烷基醚，聚亚烷基二醇，聚乙氧基化硬脂醇）。 施用粉末的方法包括通过电感应/传导对粉末进行充电，并将带电粉末喷涂到在热熔融之前粘附的接地固体物体上以产生永久性的光洁度。

    Electrostatic powder coating apparatus
    34.
    发明授权
    Electrostatic powder coating apparatus 失效
    静电粉末涂装设备

    公开(公告)号：US4811689A

    公开(公告)日：1989-03-14

    申请号：US862036

    申请日：1986-05-12

    Applicant: Masahiro Yamamoto ,  Mituyosi Kumata ,  Katutoshi Kozoe ,  Tsutomu Itoh

    Inventor： Masahiro Yamamoto ,  Mituyosi Kumata ,  Katutoshi Kozoe ,  Tsutomu Itoh

    IPC: B05B5/053 ,  B05B5/08 ,  B05D1/00 ,  B05D1/04 ,  B05D1/06 ,  B05D3/00 ,  B05B5/02

    CPC classification number: B05B5/087 ,  B05B5/0533 ,  B05D1/007 ,  B05D1/06 ,  B05B5/084

    Abstract: An electrostatical powder coating method and apparatus therefor, in which an auxiliary electrode is disposed in the vicinity of a desired coating surface of an object to be coated, a gun for performing electrostatically powder coating is directed to the object to be coated and the auxiliary electrode, a DC electric field is formed between the gun, the auxiliary electrode and the object to be coated, the auxiliary electrode is electrically charged to the same polarity as the gun so as to form an auxiliary electric field between the auxiliary electrode and the desired coating surface of the object to be coated whereby a powder coating material is transferred to be applied onto the desired coating surface by the electric field.

    Abstract translation: 一种静电粉末涂布方法及其设备，其中辅助电极设置在待涂覆物体的所需涂层表面附近，用于进行静电粉末涂覆的喷枪被引导到被涂物体和辅助电极 在喷枪，辅助电极和被涂物体之间形成直流电场，辅助电极与喷枪的极性相同，从而在辅助电极与所需涂层之间形成辅助电场 要涂覆的物体的表面，由此通过电场将粉末涂料转移到所需的涂层表面上。

    Apparatus for particles
    35.
    发明授权
    Apparatus for particles 失效
    颗粒装置

    公开(公告)号：US4795330A

    公开(公告)日：1989-01-03

    申请号：US17423

    申请日：1987-02-24

    Applicant: Timothy J. Noakes ,  Ian D. Pavey ,  Stuart C. Ord

    Inventor： Timothy J. Noakes ,  Ian D. Pavey ,  Stuart C. Ord

    IPC: A61M11/00 ,  A61M15/02 ,  B01J2/02 ,  B01J2/04 ,  B05B5/00 ,  B05B5/025 ,  B05B5/08 ,  B22D11/01

    CPC classification number: B05B5/002 ,  A61M11/001 ,  A61M15/02 ,  B01J2/04 ,  B05B5/0255 ,  B05B5/087

    Abstract: A process for the production of solid particles, characterized by the solidification in flight of an electrically charged spray of fluid droplets of narrow particle size distribution, and an apparatus for that process comprising a sprayhead with a channel for the fluid communicating with an outlet; means for subjecting the fluid to an electrical field such that the fluid will move from the sprayhead under the influence of the field to produce a spray of the fluid, the means including means for applying a first potential to the fluid; an electrode mounted spaced from but adjacent to the sprayhead with means to apply a second potential to that electrode; and a spray chamber, so positioned that in use the sprayhead delivers the spray to the chamber interior, and provided with means to apply a third potential to the chamber, and so dimensioned and arranged that in use the majority of the spray droplets solidify before impinging on any surface of or within the chamber.

    Abstract translation: 一种生产固体颗粒的方法，其特征在于具有窄粒度分布的流体液滴的带电喷雾的飞行中的固化，以及用于该方法的装置，其包括具有用于流体与出口连通的通道的喷头; 用于使流体经受电场的装置，使得流体将在场的影响下从喷头移动以产生流体的喷雾，该装置包括用于向流体施加第一电势的装置; 与喷头相隔离但相邻的电极，具有向该电极施加第二电位的装置; 以及喷雾室，其被定位成使得在使用中，喷头将喷雾输送到室内部，并且设置有向室施加第三电位的装置，并且尺寸和布置成使得在使用中大部分喷雾液滴在撞击之前固化 在室内或室内的任何表面上。

    Method and apparatus for induction charging of powder by contact electrification
    36.
    发明授权
    Method and apparatus for induction charging of powder by contact electrification 失效
    通过接触电化进行粉末感应充电的方法和装置

    公开(公告)号：US4780331A

    公开(公告)日：1988-10-25

    申请号：US136510

    申请日：1987-12-28

    Applicant: Walter H. Cobbs, Jr. ,  Harry J. Lader ,  Merle N. Hirsh ,  David H. Chow

    Inventor： Walter H. Cobbs, Jr. ,  Harry J. Lader ,  Merle N. Hirsh ,  David H. Chow

    IPC: B05B5/08 ,  B05D1/00 ,  B05D1/06 ,  B05D3/12 ,  B05D1/04

    CPC classification number: B05D1/06 ,  B05B5/087 ,  B05D1/007 ,  B05D2401/32 ,  B05D3/12

    Abstract: Method and apparatus for charging powdered particles and delivering only these charged particles to a workpiece. A high voltage electric field is created between upper and lower surfaces. Powder is continuously delivered to the lower surface. The lower surface is vibrated to bounce the particles so that each repeatedly contacts the lower surface and picks up an electrostatic charge with each contact. When the charge from the particle is great enough to overcome gravity, the particle levitates and is thereafter transported to a workpiece, where it adheres by electrostatic attraction. Three important features of this method are: (1) No uncharged particles are levitated to the workpiece, thereby eliminating the need for recirculating uncharged powder. (2) The method is capable of producing high throughput of charged particles. (3) The method is capable of producing powder with a controlled charge level.

    Abstract translation: 用于装入粉状颗粒并仅将这些带电粒子输送到工件的方法和装置。 在上表面和下表面之间产生高电压电场。 粉末连续输送到下表面。 下表面振动以使颗粒反弹，使得每个反复接触下表面并且与每个接触件拾取静电电荷。 当来自颗粒的电荷足够大以克服重力时，颗粒悬浮并随后被运送到工件，其中它通过静电吸附附着。 该方法的三个重要特点是：（1）没有不带电荷的颗粒悬浮在工件上，因此不需要再循环不带电的粉末。 （2）该方法能够产生高通量的带电粒子。 （3）该方法能够产生具有受控电荷水平的粉末。

    Method of electrostatic powder spray coating
    37.
    发明授权
    Method of electrostatic powder spray coating 失效
    静电粉末喷涂方法

    公开(公告)号：US4774102A

    公开(公告)日：1988-09-27

    申请号：US871972

    申请日：1986-06-09

    Applicant: Steven L. Kiefer ,  Stephen Hart ,  Ronald G. Creech

    Inventor： Steven L. Kiefer ,  Stephen Hart ,  Ronald G. Creech

    IPC: B05B5/03 ,  B05B5/053 ,  B05B5/08 ,  B05D1/06

    CPC classification number: B05D1/06 ,  B05B5/032 ,  B05B5/0533 ,  B05B5/0535 ,  B05B5/087

    Abstract: An electrostatic powder spray coating method and apparatus for producing evenly coated continuous films of thermoplastic and thermosetting powders on substrates or parts having electrically conductive geometric complex surfaces and enables the use, without the occurrence of "cobwebbing," of significantly higher charging voltages for the spray gun in the spray coating of preheated substrates and parts, thus allowing faster coating lines. The invention features the use of a grounded electrically conductive ring for grounding the ionized field in the powder discharge region of the spray gun.

    Abstract translation: 一种静电粉末喷涂方法和装置，用于在具有导电几何复合表面的基底或部件上制备均匀涂布的热塑性和热固性粉末的连续膜，并且能够使用，而不会发生“蜘蛛网”（smwebbing）“显着更高的喷射充电电压 在预热的基材和部件的喷涂中喷枪，从而允许更快的涂布线。 本发明的特征在于使用接地的导电环来将喷枪的粉末放电区域中的电离场接地。

    Automatic coating system
    38.
    发明授权
    Automatic coating system 失效
    自动涂装系统

    公开(公告)号：US3594211A

    公开(公告)日：1971-07-20

    申请号：US3594211D

    申请日：1966-10-20

    Applicant: RANSBURG ELECTRO COATING CORP

    Inventor： DRUM EDWARD W

    IPC: B05B5/08 ,  B05B12/12 ,  B05B13/04 ,  G05B19/14 ,  B05C1/16 ,  B05C3/20

    CPC classification number: G05B19/14 ,  B05B5/08 ,  B05B5/087 ,  B05B12/122 ,  B05B13/041

    Abstract: METHODS OF COATING IRREGULARLY SHAPED ARTICLES AND OF SHADING THE EDGES OF ARTICLES ARE PERFORMED AUTOMATICALLY USING A SENSOR THAT MOVES WITH THE COATING APPARATUS TO GENERATE A CONTROL SIGNAL FOR THE COATING APPARATUS. WHERE THE SENSITIVE AREA OF THE SENSING MEANS IS NOT CO-EXTENSIVE WITH THE COATING ZONE OF THE COATING APPARATUS, THE CONTROL SIGNAL IS STORED IN A MEMORY MEANS SYNCHRONIZED WITH THE COATING APPARATUS. THE RECORDED SIGNAL IS DETECTED TO OPERATE THE COATING APPARATUS OVER THE APPROPRIATE PORTION OF ITS PATH OF MOVEMENT WHEN THE ARTICLES TO BE COATED IS WITHIN THE COATING ZONE OF THE COATING APPARATUS.

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