公开(公告)号：US3873024A

公开(公告)日：1975-03-25

申请号：US34031673

申请日：1973-03-12

Applicant: RANSBURG CORP

Inventor： PROBST RICHARD O ,  POLLARD KENNETH E

IPC: B05B5/03 ,  B05B5/16 ,  B05B15/02 ,  B05D1/06 ,  B05B5/02

CPC classification number: B05D1/06 ,  B05B5/032 ,  B05B5/1683 ,  B05B15/025

Abstract: This disclosure includes a color change means for and method of coating surfaces of articles with a spray of powder particles of one color or a spray including a plurality of different powder particles, the particles being entrained in a gas, such as air. The powder spray device is, preferably, an electrostatic spray device for depositing the particles of powder on a surface to be coated. A plurality of separate passageways in the spray device, one for conveying each powder, are connected to separate sources of powder. Particles of the desired powder or powders are withdrawn from the source or sources containing them. Powder particles flowing into the spray device are conveyed by the passageways to a chamber or compartment within the color change means. A flow of compressed air is introduced to the area where the powder particles emerge from the passageways. An induced flow of air is admitted into the spray device to the rear of termination of the passageways. In operation the powder being sprayed is not retained in the device in significant quantity, a substantially uniform powder distribution is achieved in the spray pattern and the powder particles are provided with momentum sufficient to carry the particles to the vicinity of the surface to be coated.

Abstract translation: 该公开内容包括用一种颜色的粉末颗粒的喷雾或包括多种不同的粉末颗粒的喷雾器喷涂物品的表面的颜色改变装置和方法，所述颗粒被夹带在诸如空气的气体中。 粉末喷涂装置优选地是用于将粉末颗粒沉积在待涂覆的表面上的静电喷涂装置。 喷雾装置中的多个单独的通道，一个用于输送每种粉末的单独的通道连接到单独的粉末源。 将所需粉末或粉末的颗粒从含有它们的源或源中取出。 流入喷雾装置的粉末颗粒通过通道输送到颜色改变装置内的室或隔室中。 将压缩空气流引入粉末颗粒从通道出来的区域。 诱导的空气流进入喷雾装置到通道终端的后部。 在操作中，喷涂的粉末不会大量地保留在装置中，在喷雾图案中实现了基本上均匀的粉末分布，并且粉末颗粒具有足以将颗粒运送到待涂覆表面附近的动量。