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:
Mar. 18, 2025
Filed:
Oct. 18, 2021
Atmospheric Plasma Solutions, Inc., Cary, NC (US);
Terrence E. Rogers, Durham, NC (US);
Atmospheric Plasma Solutions, Inc., Cary, NC (US);
Abstract
A system for plasma ignition and maintenance of an atmospheric pressure plasma. The system has a variable frequency alternating current (AC) power source, a transformer, a cable connected to a secondary winding of the transformer, a programmed microprocessor for control of power to the atmospheric pressure plasma. The microprocessor is configured to a) at pre-ignition, power the AC power source at an operational frequency fhigher than the resonant frequency f, b) decrease the operational frequency fof the AC power source until there is plasma ignition, and c) after the plasma ignition, further decrease the operational frequency fof the AC power source to a frequency lower than the resonant frequency f.