Coating material dispensing and charging system
First Claim
1. A coating material dispensing and charging system comprising first electrical conductors extending between first electrically non-conductive supporting members, a power supply, means for coupling the power supply across the first conductors and articles to be coated to maintain a high magnitude electrostatic potential difference across a space defined between the first conductors and the articles, a dispenser for dispensing the coating material into the space, a supply of coating material, and means for supplying the coating material from the coating material supply to the dispenser, the first electrical conductors comprising electrically conductive filaments, the electrically conductive filaments surrounded by electrically non-conductive sheaths.
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Accused Products
Abstract
A coating material dispensing and charging system comprises first electrical conductors extending between first electrically non-conductive supporting members, a power supply coupled across the first conductors and articles to be coated to maintain a high magnitude electrostatic potential difference across a space defined between the first conductors and the articles, a dispenser for dispensing the coating material into the space, and a supply of coating material for the dispenser. The first electrical conductors comprise electrically conductive filaments surrounded by electrically non-conductive sheaths.
42 Citations
48 Claims
- 1. A coating material dispensing and charging system comprising first electrical conductors extending between first electrically non-conductive supporting members, a power supply, means for coupling the power supply across the first conductors and articles to be coated to maintain a high magnitude electrostatic potential difference across a space defined between the first conductors and the articles, a dispenser for dispensing the coating material into the space, a supply of coating material, and means for supplying the coating material from the coating material supply to the dispenser, the first electrical conductors comprising electrically conductive filaments, the electrically conductive filaments surrounded by electrically non-conductive sheaths.
- 11. A coating material dispensing and charging system comprising first electrical conductors extending between first electrically non-conductive supporting members, a power supply, means for coupling the power supply across the first conductors and articles to be coated to maintain a high magnitude electrostatic potential difference across a space defined between the first conductors and the articles, a dispenser for dispensing the coating material into the space, a supply of coating material, and means for supplying the coating material from the coating material supply to the dispenser, the first electrical conductors comprising electrically non-insulative materials applied to electrically non-conductive substrates.
- 15. A method of dispensing coating material comprising providing first electrically conductive filaments surrounded by electrically non-conductive sheaths and extending between first electrically non-conductive supporting members, providing a dispenser for dispensing the coating material, providing a supply of coating material to the dispenser, coupling the power supply across the first electrically conductive filaments and the articles to be coated to maintain a high magnitude electrostatic potential difference across a space defined between the first electrically conductive filaments and the articles, and dispensing the coating material into the space.
- 21. A method of dispensing coating material comprising providing first electrically non-insulative materials applied to electrically non-conductive substrates extending between first electrically non-conductive supporting members, providing a dispenser for dispensing the coating material, providing a supply of coating material to the dispenser, coupling the power supply across the first conductors and the articles to be coated to maintain a high magnitude electrostatic potential difference across a space defined between the first conductors and the articles, and dispensing the coating material into the space.
- 29. A coating material dispensing and charging system comprising first fine metal wires surrounded by electrically non-conductive sheaths comprising material selected from the group consisting of synthetic materials and glass, the first fine metal wires extending between first electrically non-conductive supporting members, a power supply, means for coupling the power supply across the first fine metal wires and articles to be coated to maintain a high magnitude electrostatic potential difference across a space defined between the first fine metal wires and the articles, a dispenser for dispensing the coating material into the space, a supply of coating material, and means for supplying the coating material from the coating material supply to the dispenser.
- 33. A coating material dispensing and charging system comprising first metal wires wound around electrically non-conductive filaments and extending between first electrically non-conductive supporting members, a power supply, means for coupling the power supply across the first metal wires and articles to be coated to maintain a high magnitude electrostatic potential difference across a space defined between the first metal wires and the articles, a dispenser for dispensing the coating material into the space, a supply of coating material, and means for supplying the coating material from the coating material supply to the dispenser.
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36. A coating material dispensing and charging system comprising first electrical conductors extending between first electrically non-conductive supporting members, the first electrical conductors comprising electrically non-insulative material applied to electrically non-conductive substrates, a power supply, means for coupling the power supply across the first conductors and articles to be coated to maintain a high magnitude electrostatic potential difference across a space defined between the first conductors and the articles, a dispenser for dispensing the coating material into the space, a supply of coating material, and means for supplying the coating material from the coating material supply to the dispenser, the electrically non-conductive substrates comprising electrically non-conductive filaments, and the electrically non-insulative material comprising a carbon-containing coating applied to the electrically non-conductive filaments.
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37. A coating material dispensing and charging system comprising first electrical conductors extending between first electrically non-conductive supporting members, the first electrical conductors comprising electrically non-insulative material applied to electrically non-conductive substrates, a power supply, means for coupling the power supply across the first conductors and articles to be coated to maintain a high magnitude electrostatic potential difference across a space defined between the first conductors and the articles, a dispenser for dispensing the coating material into the space, a supply of coating material, and means for supplying the coating material from the coating material supply to the dispenser, the electrically non-conductive substrates comprising tubes of electrically non-conductive material, and the electrically non-insulative materials comprising electrically non-insulative coating applied to the insides of the tubes and fine wire-like electrodes extending through the walls of the tubes in electrical contact with the electrically non-insulative coating and exposed to the space.
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38. A coating material dispensing and charging system comprising first electrical conductors extending between first electrically non-conductive supporting members, the first electrical conductors comprising electrically non-insulative material applied to electrically non-conductive substrates, a power supply, means for coupling the power supply across the first conductors and articles to be coated to maintain a high magnitude electrostatic potential difference across a space defined between the first conductors and the articles, a dispenser for dispensing the coating material into the space, a supply of coating material, and means for supplying the coating material from the coating material supply to the dispenser, the electrically non-conductive substrates comprising strips of electrically non-conductive material, and the electrically non-insulative materials comprising electrically non-insulative coating applied to the strips and fine wire-like electrodes mounted on the strips in electrical contact with the electrically non-insulative coating and exposed to the space.
- 39. A coating material dispensing and charging system comprising first electrical conductors extending between first electrically non-conductive supporting members, the first electrical conductors comprising electrically conductive filaments surrounded by electrically semiconductive sheaths, a power supply, means for coupling the power supply across the first conductors and articles to be coated to maintain a high magnitude electrostatic potential difference across a space defined between the first conductors and the articles, a dispenser for dispensing the coating material into the space, a supply of coating material, and means for supplying the coating material from the coating material supply to the dispenser.
- 43. A coating material dispensing and charging system comprising a first electrical conductor extending between a first electrically non-conductive supporting member and a second electrically non-conductive supporting member, means for moving one of the first and second electrically non-conductive supporting members relative to the other of the first and second electrically non-conductive supporting members to move the first electrical conductor generally in a plane adjacent articles to be coated by the coating material, a power supply, means for coupling the power supply across the first conductor and articles to be coated to maintain a high magnitude electrostatic potential difference across a space defined between the first conductor and the articles, a dispenser for dispensing the coating material into the space, a supply of coating material, and means for supplying the coating material from the coating material supply to the dispenser.
Specification