公开(公告)号：US5709536A

公开(公告)日：1998-01-20

申请号：US379917

申请日：1995-01-30

申请人： Wesley E. Renfro ,  Marty H. Hopkins ,  Michael T. Sample ,  James N. Skarzynski

发明人： Wesley E. Renfro ,  Marty H. Hopkins ,  Michael T. Sample ,  James N. Skarzynski

IPC分类号： B05B9/01 ,  B05B9/04 ,  B05B15/00 ,  F04B43/107 ,  F04B53/10 ,  F04B9/08

CPC分类号： B05B15/003 ,  B05B9/01 ,  B05B9/0413 ,  F04B43/107 ,  F04B53/1002 ,  F04B53/1087 ,  F05C2201/0412 ,  F05C2203/0821 ,  Y10T137/7559 ,  Y10T137/7838

摘要： A liquid pumping, handling and spraying system for liquid compositions and especially those liquid coating compositions having a suspension of metal particulate therein which tends to settle out of suspension of metal particulate therein which tends to settle out of suspension quite rapidly and which includes metal particulate having an affinity for adherence to metal surfaces. A fluid supply system is provided which accomplishes continuous agitation of the liquid composition to sprayed to maintain the metal particulate thereof in properly entrained suspension and even distribution with the liquid carrier fluid and which permits the use of low cost, lightweight containers for the liquid supply. A packingless pump is provided for pressurized delivery of the liquid composition from the supply container to a packingless spray gun. The packingless pump achieves pumping of liquid by hydro mechanical deformation of polymer variable volume pump chambers which induce intermittent suction and pressurization of the liquid for pumping and which have externally mounted check valve heads for controlling the flowing of the pumped liquid from the supply container to the spray gun. The packingless spray gun employs a body of resilient polymer which functions as a columnar spring to control the opening and closing movement of a spray valve assembly. Valve seats of the check valve head and spray gun assembly may be of flexible nature to ensure efficient separation of metal particulate therefrom. Metal operational components of the check valve head and spray gun, such as valve stems and valves define outer surfaces composed of titanium to minimize metal particulate adherence thereto.

摘要翻译： 一种用于液体组合物的液体泵送，处理和喷雾系统，特别是那些其中具有金属颗粒的悬浮液的液体涂料组合物，其倾向于从其中非常迅速地悬浮在悬浮液中的金属颗粒的悬浮液中沉淀，并且其包括具有 对粘附金属表面的亲和力。 提供了一种流体供应系统，其实现喷射的液体组合物的连续搅拌，以将其金属颗粒保持在适当夹带的悬浮液中，并与液体载体流体均匀分布，并且允许使用低成本，轻质的容器用于液体供应。 提供了一种无包装泵，用于将液体组合物从供应容器加压输送到无包装喷枪。 无包装泵通过聚合物可变体积泵室的水力机械变形泵送液体，其引起用于泵送的液体的间歇抽吸和加压，并且具有外部安装的止回阀头，用于控制泵送的液体从供应容器流向 喷枪。 无包装喷枪采用弹性聚合物体，其用作柱状弹簧以控制喷雾阀组件的打开和关闭运动。 止回阀头和喷枪组件的阀座可以是柔性的，以确保金属颗粒从其中的有效分离。 止回阀头和喷枪的金属操作部件，例如阀杆和阀，限定由钛组成的外表面，以使金属颗粒附着到最小程度。