Back to results
US 4,291,226 AGranted
Corona discharge electrode system
AssigneeArmstrong Cork Company
InventorWerner Rueggeberg
Life of this patent
Estimating the term…
Abstract
A corona discharge electrode system is provided, the electrode system providing a power density of up to 200 watts per square inch by use of a liquid cooled, liquid-quartz buffered electrode. The corona discharge electrode system is particularly suitable for deglossing radiant energy curable coatings.
Claims9
A liquid cooled, liquid-quartz buffered corona discharge electrode system capable of sustaining a power density of up to 200 watts per square inch comprising:
- (a) a cylindrical electrode;
- (b) a quartz tube of larger diameter than the electrode, encasing the electrode and providing a cylindrical passageway between the surface of the electrode and the inside wall of the quartz tube, the quartz tube having at one end a liquid inlet means and at the other end a liquid outlet means for the passage of a liquid buffer dielectric/coolant whereby the liquid buffer dielectric/coolant is supplied through the inlet means, passes through the cylindrical passageway in contact with the surface of the electrode and exits through the outlet means;
- (c) a plurality of spacer means interposed between the electrode and the inside wall of the quartz tube serving to hold the electrode stationary in the quartz tube whereby the electrode is prevented from deflecting due to the electrical forces generated during corona formation;
- and,
- (d) a ground electrode means positioned parallel to and spaced a distance apart from the quartz tube forming therebetween a corona discharge region including a gas wherein a material to be treated is passed.
2 more elements
Dependencies are inferred from the claim text.