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US 12,697,632 B2Granted
Electrostatic atomizer
AssigneeCarlisle Fluid Technologies, Inc.
InventorsOsamu Yoshida, Yoshiji Yokomizo
Life of this patent
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Abstract
An electrostatic atomizer can include a paint supply path configured to supply paint to a paint discharge section; and a high voltage supply path configured to supply a high voltage to a discharge electrode, wherein the discharge electrode comprises a semi-conductive material, and wherein the high voltage supply path includes a high resistance near the discharge electrode, and is electrically segregated from the paint supply path.
Claims7
An electrostatic atomizer comprising:
- a paint supply path configured to supply paint to a paint discharge section;
- and
- a high voltage supply path configured to supply a high voltage to a discharge electrode,
- wherein the discharge electrode comprises a semi-conductive material,
- wherein the high voltage supply path includes a high resistance near the discharge electrode and is electrically segregated from the paint supply path,
- wherein the paint supply path includes a manifold communicated with a feed tube,
- wherein the feed tube is connected to the paint discharge section,
- wherein the feed tube consists of an electrically insulating material,
- wherein the paint supply path consists of an electrically insulating material,
- wherein the paint supply path is grounded through a bracket,
- wherein the high voltage supply path includes a metal part on an upstream side of the high resistance,
- wherein the metal part does not include a paint supply system part forming a part of the paint supply path,
- wherein the paint supply path includes a feed tube connected to the paint discharge section,
- wherein the feed tube consists of an electrically insulating material;
- wherein the electrostatic atomizer is a rotary atomizing type electrostatic atomizer,
- wherein the discharge electrode is composed of a rotary atomizing head which is connected to an output shaft of an air motor configured to drive the rotary atomizing head,
- wherein the rotary atomizing head consists of a semi-conductive resin material,
- wherein the air motor consists of metal and constitutes a part of the high-voltage supply path,
- wherein the output shaft of the air motor consists of an electrically insulating material and is hollow, and
- wherein the feed tube is coaxially arranged in the hollow output shaft,
- an electrically insulating motor holder for supporting the air motor and having a hole for receiving a high-voltage cable forming a part of the high voltage supply path, and a cylindrical and electrically insulating member provided at an entrance of the hole of the motor holder,
- wherein the motor holder has a cylindrical and electrically insulating member at an entrance of a hole for receiving a high-voltage cable, and
- wherein the hole forms a portion of the high voltage supply path.
20 more elements
Dependencies are inferred from the claim text.