Safety circuitry for ion generator
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United States of America Patent
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-
Jul 11, 2000
Grant Date -
N/A
app pub date -
Jun 24, 1998
filing date -
Nov 10, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A capacitor is serially-connected to apply alternating line signal to ion generators that are normally operable on alternate half cycles of line signal for safely inhibiting further operation of a generator of air ions of one polarity in the event a generator of air ions of opposite polarity incurs circuit malfunction. In an alternative embodiment, serially-connected capacitor are shunted by serially-connected diodes poled for unidirectional conduction in opposite directions, with junctions of capacitors and diodes connected together. Conduction of alternate half cycles of AC line signal conducted through such diode-capacitor network during circuit failure of one of the air ion generators to operate properly on the respective alternate half cycle of the AC line signal causes build up of accumulated charge and voltage across one capacitor with a polarity that significantly reduces the average voltage applied to the other, operational air ion generator during each respective alternate half cycle of AC line signal.
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