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US 4,064,548 AGranted
Means for improving ionization efficiency of high-voltage grid systems
AssigneeBurlington Industries, Inc.
InventorsRobert H. Best, William D. Harris
Life of this patent
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AssigneeBurlington Industries, Inc.
InventorsRobert H. Best, William D. Harris
Estimating the term…
A method and system for ionizing air passing through a metallic duct, e.g. to maintain 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, with at least one electrical grid mounted in the duct by means of one or more insulator posts connecting the grid to a duct wall and adapted for connection to a DC high voltage source whereby buildup of conductive material such as grease or lint in a conductive path between the grid and duct wall is prevented. In one embodiment this is accomplished by providing an insulating sleeve within the duct and surrounding the grid, this sleeve by protecting against short circuits also permitting high currents to be safely used. In a second embodiment air deflectors mounted on the grid wall deflect the air in the duct away from the insulator posts, preferably with the aid of clean air injected between the air deflectors and duct wall.
In a system for ionizing air passing through a metallic duct having an electrically conductive member, means for connecting said member to a source of high voltage so as to ionize air passing adjacent thereto through said duct and means for mounting said member in said duct insulated from the walls thereof the improvement comprising means for preventing material in the air from building up a conductive path between said member and said duct, including an electrically insulating sleeve surrounding said member between said member and said metallic duct.
In a system for ionizing air passing through a metallic duct having an electrically conductive member, means for connecting said member to a source of high voltage so as to ionize air passing adjacent thereto through said duct and means for mounting said member in said duct insulated from the walls thereof, the improvement comprising means for preventing material in the air from building up a conductive path between said member and said duct, including:
A system for maintaining a predetermined electrical atmosphere in an area into which air is at least periodically pumped comprising:
Dependencies are inferred from the claim text.