The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 08, 1990
Filed:
Mar. 03, 1989
Buckley Crist, Jr, Wilmette, IL (US);
Electro-Technic Products Company, Chicago, IL (US);
Abstract
A system for creating a uniform corona over a volume of free space. A high frequency electrical corona generator is connected to a first electrode having a corona driving element and a corona emitting element, with the corona driving element being greater in size than the corona emitting element such that corona is emitted from the corona emitting element in a direction away from the corona driving element. A second electrode, essentially identical to the first, is spaced from the first with its corona emitting element oriented toward the corona emitting element of the first electrode. A resonator coil is attached to the second electrode, the coil having resonant frequency the same as a resonant frequency of the corona generator and being situated within an electric field generated by the first electrode.