公开(公告)号：US5725150A

公开(公告)日：1998-03-10

申请号：US647857

申请日：1996-05-15

Applicant: Harold T. Allen ,  Edward T. Feldman ,  Varce E. Howe ,  Ghaffar Kazkaz ,  Jerry L. McPherson, Jr. ,  James Scharfenberger

Inventor： Harold T. Allen ,  Edward T. Feldman ,  Varce E. Howe ,  Ghaffar Kazkaz ,  Jerry L. McPherson, Jr. ,  James Scharfenberger

IPC: B05D1/04 ,  B05B5/08 ,  B05B5/16 ,  B05B12/14 ,  B05C11/10 ,  B08B9/00 ,  B05B5/025

CPC classification number: B05B5/1625 ,  B05B12/14 ,  B05B5/1633 ,  B05B5/1675 ,  B08B9/00

Abstract: A method and system for supplying electrically conductive coating materials to an electrostatic dispenser with a parallel arrangement of subsystems selectably coupled to the dispenser by a four-port system voltage blocking valve, which electrically isolates the subsystems. The subsystems each include first and second piston cylinders that alternatingly receive a selected coating material from a corresponding manifold and supply the coating material to the dispenser by a subsystem voltage blocking valve, which isolates the dispenser from the manifold, when coupled to the dispenser. The first and second piston cylinders of each subsystem also alternatingly receive a solvent from the corresponding manifold and direct the solvent to a waste receptacle by a corresponding subsystem voltage blocking valve when the subsystem is not coupled to the dispenser. The solvent removes previously supplied coating material from the non-selected subsystem and readies the non-selected subsystem for supplying a next selected coating material to the dispenser.

Abstract translation: 一种用于将电导涂层材料供应到静电分配器的方法和系统，其具有可选择地通过四端口系统电压阻断阀耦合到分配器的子系统的并行布置，其将该子系统电隔离。 所述子系统各自包括第一和第二活塞气缸，所述第一和第二活塞气缸从相应的歧管交替地接收所选择的涂层材料，并且通过子系统电压阻断阀将涂层材料供应到分配器，所述子系统电压阻断阀当耦合到分配器时将分配器与歧管隔离。 每个子系统的第一和第二活塞气缸还交替地从相应的歧管接收溶剂，并且当子系统未耦合到分配器时，通过相应的子系统电压阻断阀将溶剂引导到废物容器。 溶剂从未选择的子系统中除去先前提供的涂料，并准备未选择的子系统，以将下一个选定的涂料供应给分配器。