The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 26, 1988
Filed:
Sep. 25, 1987
Wayne E Conrad, Brooklin, CA;
Tridon Environmental Inc., Burlington, CA;
Abstract
The invention provides a filter structure for use with a high voltage power pack for filtering particulates from a stream of air passing through the filter structure. The structure includes a structural element for facing the stream of air and the back parallel and spaced from the front, the front and back defining a plurality of openings permitting a flow of air through the element. A planar insulating substrate is positioned adjacent the front of the structural element and has openings aligned with the openings in the structural element and a plurality of conductors are carried by the substrate about the openings for charging by the power pack. As a result, an electrostatic field is created across the openings orthogonally with respect to the flow of air between the conductors. A non-conductive filter element is positioned in contact with the conductors and between the conductors and the back of the structural element. The filter element defines tortuous paths for air flowing through the filter element whereby particulates in the air are ionized as they meet the electrostatic field and then impinge and are attached to the filter medium to clean the air.