Invention Grant
- Patent Title: Powder spray coating discharge assembly
- Patent Title (中): 喷粉喷涂组件
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Application No.: US12411841Application Date: 2009-03-26
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Publication No.: US08166912B2Publication Date: 2012-05-01
- Inventor: Man Kin Mickey Ko
- Applicant: Man Kin Mickey Ko
- Applicant Address: HK Central
- Assignee: Yu Tung Investment Holdings Limited
- Current Assignee: Yu Tung Investment Holdings Limited
- Current Assignee Address: HK Central
- Agency: Prass LLP
- Agent Ronald E. Prass, Jr.
- Main IPC: B05B5/025
- IPC: B05B5/025 ; B05B5/00 ; B05C19/00

Abstract:
A powder spray coating discharge assembly (230, 260, 216, 228, 232) for connection to an electrostatic spray coating gun (210), the gun (210) having a gun body (212), means for connecting to a supply of coating powder and means for supplying a voltage (20) at first and second potentials respectively to first (292) and second electrical connections (294) each for connection to a respective one of a discharge electrode (232) and a counter electrode (260), the means for supplying the voltage (20) comprising: a variable voltage power supply (114) having an input connected to an electrical power source (110), an output connected to each of the first and second electrical connections (292, 294), a control circuit (128) for controlling the variable voltage power supply (20) and means (120) for sensing an output load, wherein the control circuit (128) is adapted to adjust the variable voltage power supply (20) to reduce the voltage and current in proportion to a sensed increase in load, or vice-versa.
Public/Granted literature
- US20090229517A1 POWDER SPRAY COATING DISCHARGE ASSEMBLY Public/Granted day:2009-09-17
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