Electricity: electrical systems and devices – Discharging or preventing accumulation of electric charge
Patent
1997-11-10
1999-07-27
Fleming, Fritz
Electricity: electrical systems and devices
Discharging or preventing accumulation of electric charge
361213, 361229, 361235, H05F 306
Patent
active
059301058
ABSTRACT:
Ionizing method and apparatus includes a pair of inverters to supply ionizing voltages to ionizing electrodes only during alternate halves of a duty cycle in which one inverter is actuated to operate at high oscillating frequency while the other inverter is inactive, and thereafter in an alternate half of the duty cycle in which the one inverter is inactive and the other inverter is actuated to operate at high oscillating frequency. Each inverter includes a return current path that combines in a common return path in which return currents may be monitored for selective control of one or both of the inverters. Small step-up transformers and other components operating at high oscillation frequency promote confined packaging of high voltage generators for convenient mounting adjacent a pair of ionizing electrodes to reduce lengths of heavily-insulated high-voltage cables between generators and electrodes. Each electrode only operates on one polarity of high voltage derived from half-wave rectified high-frequency oscillations during the actuation of the associated inverter. Closely-spaced mounting of the electrodes adjacent a web of material having net electrostatic charge to be neutralized facilitates alternately supplying ions of each polarity from separate ones of the electrodes to neutralize charge on the web.
REFERENCES:
patent: 3120626 (1964-02-01), Schweriner
patent: 3137806 (1964-06-01), Schweriner
patent: 3156847 (1964-11-01), Schweriner
patent: 3443155 (1969-05-01), Schweriner
patent: 4216518 (1980-08-01), Simons
patent: 4542434 (1985-09-01), Gehlke et al.
patent: 4630167 (1986-12-01), Huggins
patent: 4689715 (1987-08-01), Halleck
patent: 4729057 (1988-03-01), Halleck
patent: 4774472 (1988-09-01), Blitshteyn et al.
patent: 4809127 (1989-02-01), Steinman et al.
patent: 4872083 (1989-10-01), Blitshteyn
patent: 4951172 (1990-08-01), Steinman et al.
patent: 5008594 (1991-04-01), Swanson et al.
patent: 5017876 (1991-05-01), Wright et al.
patent: 5432454 (1995-07-01), Durkin
Blitshteyn Mark
Gefter Petr
Pitel Ira J.
Fleming Fritz
Ion Systems, Inc.
LandOfFree
Method and apparatus for air ionization does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for air ionization, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for air ionization will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-886272