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US 11,590,519 B2Granted
Electrostatic atomizer
OwnerOsamu Yoshida, Yoshiji Yokomizoinventors
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.
Claims6
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, and
- wherein the high voltage supply path includes a high resistance comprising plate-shaped resistors connected to the discharge electrode by a lead wire and is electrically segregated from the paint supply path, 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, and
- 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, wherein the paint supply path includes a manifold communicated with the feed tube, wherein a paint supply pipe communicated with a paint source and a solvent supply pipe communicated with a solvent source are connected to the manifold, and wherein the paint supply pipe and the solvent supply pipe are grounded through a bracket, wherein the manifold consists of an electrically insulating material, wherein the paint supply pipe and the solvent supply pipe consist of an electrically insulating material, and
- wherein the electrostatic atomizer further comprises 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 hole is configured to receive the high-voltage cable.
5 more elements
Dependencies are inferred from the claim text.