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公开(公告)号：US4109027A
公开(公告)日：1978-08-22
申请号：US651162
申请日：1976-01-21
Applicant: James R. Crose
Inventor： James R. Crose
CPC classification number: B05B15/0425 , B05B15/0412 , B05B5/001 , B05B5/032 , B05B5/12 , Y02P70/36
Abstract: Disclosed is an electrostatic coating device and method employing highly charged particles that are charged remote from the articles to be coated and then delivered to an area where they are to be applied by conveying them in a moving air stream. The movement is stopped by closing off the air stream, suspending the particles in space. Thereafter the particles are applied to an article by electrostatics. Special components are a powder entraining device which uses air fed at the bottom to erode the powder, feeds additional air from above and removes entrained powder from below; a charging device using the reaction of two converging opposed vortexes to oscillate the powder turbulently through an isolated high voltage electrical zone; and a multiple valve that feeds the charged powder to a can and vents the can, then isolates the can, bypassing the powder.
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公开(公告)号：US4027050A
公开(公告)日：1977-05-31
申请号：US594852
申请日：1975-07-10
Applicant: Frederic David Haig
Inventor： Frederic David Haig
CPC classification number: B05B5/032 , B05B5/10 , Y10S148/122
Abstract: A method of coating an article comprising passing a coating material adjacent to a plurality of conductors connected to a high voltage source whereby to electrostatically charge the material and wherein each of the conductors is connected to said source through an impedance adapted to resist reduction of charge on a conductor relatively remote from an articles to be coated in consequence of reduction of charge on a conductor relatively adjacent to said article to be coated. The coating material may be supplied from a powder dispensing and metering device comprising a powder reservoir, a rotor mounted for rotation at the base of the reservoir and an air inlet adjacent the rotor through which air is drawn in use to mix with powder during rotation of the rotor to draw a powder-air mixture away from the reservoir.
Abstract translation: 一种涂覆物品的方法，包括使与涂覆材料相邻的涂层材料连接到连接到高压源的多个导体，从而对材料进行静电充电，并且其中每个导体通过适于阻止电荷降低的阻抗连接到所述源 相对远离待涂覆物品的导体，由于在与所述待涂覆的物品相对相邻的导体上的电荷减少而导致的电荷减少。 涂料可以由粉末分配和计量装置供应，粉末分配和计量装置包括粉末储存器，安装在储存器底部的转子的转子和与转子相邻的空气入口，空气在使用中通过该空气抽吸与粉末在旋转期间混合 转子将粉末 - 空气混合物从储存器中抽出。
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公开(公告)号：US4011991A
公开(公告)日：1977-03-15
申请号：US599994
申请日：1975-07-29
Applicant: Senichi Masuda
Inventor： Senichi Masuda
IPC: B05B5/025 , B05B5/00 , B05B5/03 , B05B5/053 , B05B5/08 , B05B5/10 , B05B5/16 , B05B7/14 , B05B5/02 , B05C5/00
CPC classification number: B05B7/145 , B05B5/007 , B05B5/032 , B05B5/0535 , B05B5/08 , B05B5/10 , B05B5/1683 , B05B7/1477
Abstract: An improved electrostatic powder painting apparatus is described herein, in which in the vicinity of a discharge electrode disposed in opposition to a body to be painted there is separately provided a driving electrode, for establishment of a driving electric field. The generation of a mono-polar ion current is achieved by said discharge electrode, so that the driving electric field and the ion current density may be controlled quite independently of each other, whereby generation of inverse ionization can be prevented perfectly, while a maximum amount of electric charge can be given to paint powders and a maximum driving force is acted upon said paint powders.
Abstract translation: 这里描述了一种改进的静电粉末喷涂装置，其中在与待涂漆的主体相对设置的放电电极附近，分开设置用于建立驱动电场的驱动电极。 通过所述放电电极实现单极离子电流的产生，从而可以相当独立地控制驱动电场和离子电流密度，从而可以完美地防止逆电离的产生，同时最大量 可以赋予涂料粉末，并且对所述涂料粉末施加最大的驱动力。
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公开(公告)号：US3995586A
公开(公告)日：1976-12-07
申请号：US651163
申请日：1976-01-21
Applicant: James R. Crose , Charles A. Hartnett
Inventor： James R. Crose , Charles A. Hartnett
CPC classification number: B05B15/0425 , B05B13/069 , B05B15/0412 , B05B5/032 , B05B5/12 , B05D7/22 , B05B12/122 , Y02P70/36
Abstract: Disclosed is a valve that has a torpedo shaped valving member in the middle of an enlarged passageway. The valving member contains an elastomeric sleeve that expands outwardly from a hinged area when compressed to form a line seal with the passageway. The valve is in the form of a multiple valve-feeding, bypass and venting valving units all in one dielectric casting. Means are also shown for connecting cans to the valve and for electrically charging powder. A method for valving and the diaphragm's details are also disclosed.
Abstract translation: 公开了一种在扩大的通道的中间具有鱼雷形阀构件的阀。 阀构件包含弹性体套筒，其在被压缩时从铰接区域向外膨胀以与通道形成线密封。 阀门采用多个进气，旁通和排气阀门形式，全部在一个电介质铸件中。 还示出了用于将罐连接到阀并用于充电粉末的装置。 还公开了一种阀的方法和隔膜的细节。
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公开(公告)号：US3991710A
公开(公告)日：1976-11-16
申请号：US366121
申请日：1973-06-01
Applicant: Meredith C. Gourdine , Stephen Diamond , Donald Porter
Inventor： Meredith C. Gourdine , Stephen Diamond , Donald Porter
CPC classification number: B05B7/1477 , B05B15/0412 , B05B5/032 , B05B5/082 , B05B5/10 , B05B5/1683 , Y02P70/36
Abstract: A coating system for efficient electrical precipitation of powder to articles. Articles are conveyed through a coating chamber where they are coated with a powder. Electrogasdynamic guns direct a cloud of charged particles into the coating chamber. Dilution air moves the cloud through the chamber with the articles. As the cloud moves with the articles, the charged particles precipitate to the articles. An exhaust section draws off the dilution air as the coated articles leave the chamber. Electrically conductive articles may be grounded through the conveyor system to provide a discharge path from the charged particles. For nonconducting or hard to ground articles, a precharge section places on the articles an initial charge of opposite polarity from the charged particles. A powder feed using a cylinder and piston arrangement to contain fluidized powder supplies a uniform powder suspension to the guns.
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Patent Agency Ranking
公开(公告)号：US3970035A
公开(公告)日：1976-07-20
申请号：US417633
申请日：1973-11-20
Applicant: Lennox Birckhead, Jr.
Inventor： Lennox Birckhead, Jr.
CPC classification number: B05B7/144 , B05B5/032 , B05B5/14 , B05B5/1683 , B05B7/1445 , B05B7/1472 , B05B7/1477 , B65G53/00 , B05B1/267 , B65G2812/1633
Abstract: Apparatus and method for electrostatically depositing a layer of particulate material on a substrate surface from a gaseous suspension of particulate, thermoplastic material. Classifying means removes oversized particles from a supply of particulate, thermoplastic material and feeds properly-sized particulate material to a metering feed device. A pressure responsive sensing means is associated with the metering feed device, and energizes a control circuit associated with the classifying means to direct properly-sized particulate material from the classifying means into the metering feed device to maintain a substantially constant, predetermined amount of properly-sized particulate material in the metering feed device. The metering feed device feeds the properly-sized particulate material at a controlled volumetric rate into a gaseous medium to form a gaseous suspension of properly-sized particulate, thermoplastic material which is directed through a plurality of electrically charged spray means onto a substrate surface. The metering feed device includes a housing having a hopper section for receiving particulate material from the classifying means, and an elongate trough section in communication with the hopper section through a gate means. The trough section is divided into separate elongate channels by elongate, transversely spaced partition means which extend for substantially the entire elongate extent of the trough section. Each spray means includes a spray nozzle having an elongate passage terminating at a downstream end in an exit orifice, and a deflector fan positioned downstream of, and in overlying relationship with the exit orifice. Each spray nozzle has an inlet port in a side wall, and an elongate, tapered baffle overlies the inlet port for mixing a gaseous suspension of particulate material entering the spray nozzles through a conduit which is in communication with the inlet port of the spray nozzle and one channel of the metering feed device. Each spray nozzle further includes a discharge outlet chamber downstream of the baffle to confine the flow pattern of the gaseous suspension of particulate material as the gaseous suspension travels through the discharge outlet chamber and out of the exit orifice. The deflector fan associated with each spray nozzle deflects the gaseous suspension of particulate material onto the substrate surface in an elliptical pattern having its major axis disposed substantially transverse to the direction of elongation of the elongate passage. The spray nozzles are mounted on a belt which is movable along a path defining a closed loop having spaced, linear runs which traverse past the substrate surface upon which a layer of particulate material is to be formed. The metering feed device is supported on a rotatable platform, and drive means rotates the belt supporting the metering feed device at a synchronized speed to prevent twisting of delivery conduits which are in communication with the metering feed device and the spray nozzles.
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公开(公告)号：US3964683A
公开(公告)日：1976-06-22
申请号：US609669
申请日：1975-09-02
Applicant: James J. Gimple
Inventor： James J. Gimple
CPC classification number: B05B5/032
Abstract: An improved electrostatic spray gun for the deposition of powdered coating material on a workpiece is disclosed. The spray gun includes a housing having a barrel to which a nozzle is attached for directing the powdered material to the workpiece. A charging electrode, which is connected to a high voltage power supply, is mounted on a diffuser assembly which is clamped between the nozzle and the housing, on which the nozzle is threaded. A regulated gas flow supplied through the housing and the diffuser assembly provides a gas shield around the charging electrode to prevent a buildup of the coating material on the electrode. A novel pneumatic safety interlock continuously monitors the pressure of the gas supplied to the diffuser assembly. The interlock turns off the high voltage power supply and a pump for the coating material in response to a drop in such pressure resulting from a loose nozzle.
Abstract translation: 公开了一种用于在工件上沉积粉末涂料的改进的静电喷枪。 喷枪包括具有筒体的壳体，喷嘴被附接到其上以将粉末材料引导到工件。 连接到高压电源的充电电极安装在扩散器组件上，该扩散器组件夹在喷嘴和壳体之间，喷嘴被螺纹连接。 通过壳体和扩散器组件供应的经调节的气流在充电电极周围提供气体屏蔽，以防止涂层材料在电极上的积聚。 新颖的气动安全联锁系统连续监测供应给扩散器组件的气体的压力。 响应于由于喷嘴松动导致的压力下降，互锁将关闭高压电源和用于涂层材料的泵。
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公开(公告)号：US3843054A
公开(公告)日：1974-10-22
申请号：US27859472
申请日：1972-08-07
Applicant: RANSBURG ELECTRO COATING CORP
CPC classification number: B05B15/1218 , B05B5/032 , B05B5/08 , B05B5/1683
Abstract: An electrostatic powder spraying apparatus that includes a nonrotating disk-like member having an edge; the electrostatic field extends between the edge of disk and articles to be coated. A first means of the apparatus deflects powder radially outwardly into a chamber. The chamber is adjacent the first means and provides space in which tangential streams impart a spiral motion or whirling cyclone-type motion to the radially deflected powder. An apertured means is spaced from the non-rotating disk-like member. The spiral motion of entrained powder moves it outwardly along the surface of the non-rotating disk-like member and causes air to be aspirated through the aperture to mix with the powder moving radially outwardly along the surface of the disk-like member. By this means the powder is given sufficient momentum to be ejected from the edge of the disk to the vicinity of an article at a powder attracting potential where the electrostatic field forces can guide the charged powder to the article.
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公开(公告)号：US3786309A
公开(公告)日：1974-01-15
申请号：US3786309D
申请日：1973-01-12
Applicant: GEN MOTORS CORP
Inventor： MIOTTEL N
CPC classification number: B05B5/032
Abstract: An electrostatic powder spraying method and apparatus wherein random electrical charges are neutralized on the powder to be sprayed prior to delivery of the powder particles to an electrostatic powder spray gun.
Abstract translation: 一种静电粉末喷涂方法和装置，其中在将粉末颗粒递送到静电粉末喷枪之前，将随机电荷中和待喷雾的粉末。
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公开(公告)号：US3630442A
公开(公告)日：1971-12-28
申请号：US3630442D
申请日：1969-06-16
Applicant: RANDBURG ELECTRO COATING CORP
Inventor： PROBST RICHARD O
CPC classification number: B05B5/032
Abstract: A method and apparatus for electrostatically applying solid particles to an article employs a nozzle forming the solid particles into a pattern and directing them at the article, preferably in a relatively flat, fanlike spray. The forward portion of the nozzle is formed of insulating material and includes an ionizing electrode. An electrostatic field is established between the article and an electrode that creates a single highly ionized zone offset from and rearwardly of the spray. The percentage of solid particles which are sprayed but remain undeposited is reduced using this method and apparatus.
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