Electricity: electrical systems and devices – Electric charge generating or conducting means – Modification of environmental electric charge
Patent
1990-08-15
1991-10-08
Scott, J. R.
Electricity: electrical systems and devices
Electric charge generating or conducting means
Modification of environmental electric charge
250423R, 361213, H01T 2300, H01J 2700
Patent
active
050559630
ABSTRACT:
Air ionizing apparatus that produces both positive and negative ions has a housing with air inlet and outlet passages, a plurality of spaced apart air ionizing electrodes and a high voltage supply which applies positive and negative voltages to separate electrodes. A fan creates an airflow that carries the ions out of the housing, the fan preferably being between the electrodes and the outlet passages to promote intermixing of positive and negative ions. The high voltage region of the high voltage supply is isolated from any direct current path to ground. The electrodes then inherently acquire a D.C. voltage bias, when necessary, that maintains an equal output of positive and negative ions without requiring use of an air ion sensor and feedback circuit for the purpose.
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Elms Richard
Ion Systems, Inc.
Scott J. R.
LandOfFree
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