Method and system for maintaining an electrically neutral atmosp

Details Method and system for maintaining an electrically neutral atmosp Method and system for maintaining an electrically neutral atmosp

1975-11-14

1978-08-15

Envall, Jr., R. N.

Electricity: electrical systems and devices

Electric charge generating or conducting means

Modification of environmental electric charge

361235, H05F 100

Patent

active

041077563

ABSTRACT:
A method and system for maintaining precise electrically neutral, positive or negative atmosphere in an area, such as a textile mill, by adding charged ions to air being pumped into that area, for example, through an air conditioning duct whereby at least two spaced apart grids are mounted in the duct with one connected to a positive high voltage source and the other connected to a negative high voltage source so that both grids produce ions and the voltages applied thereto are controlled to maintain the area atmosphere neutral, positively charged or negatively charged as required to dissipate an undesired charge generated in a manufacturing process.

REFERENCES:
patent: 3270270 (1966-08-01), Yenisey
patent: 3493838 (1970-02-01), Gyugyi et al.
patent: 3936698 (1976-02-01), Meyer

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