Electrode for generating an electrostatic field

• US 4,822,473 A
• Filed: 05/02/1988
• Issued: 04/18/1989
• Est. Priority Date: 08/27/1986
• Status: Expired due to Term

• Current Assignee: Intersil Corporation (Renesas Electronics Corporation)
• Original Assignee: Tore C. Arnesen
• Inventors: Arnesen, Tore C.
• Primary Examiner(s): Niebling, John F.
• Assistant Examiner(s): Leader, William T.
• Application Number:
  US07/189,111
• Time in Patent Office: 351 Days
• Field of Search: 204/280, 204/286, 204/288, 204/290 R, 204/302, 204/304, 204/305, 204/306, 204/307, 204/308, 210/748, 210/243
• US Class Current: 204/667
• CPC Class Codes: B01J 19/087 employing electric or magnetic energy
• CPC Class Codes: B03C 5/02 Separators
• CPC Class Codes: C02F 1/46109 Electrodes
• CPC Class Codes: C02F 1/48 with magnetic or electric fields C02F1/46 takes precedence
• CPC Class Codes: C02F 2303/04 Disinfection
• CPC Class Codes: C02F 2303/22 Eliminating or preventing deposits, scale removal, scale prevention C02F1/042, C02F1/4602, C02F5/00 take precedence

Abstract

An electrostatic field generator for applying an electrostatic field by submersion in a liquid has a cantilever tubular construction wherein an electrically conductive tube has a fluid impervious dieletric sleeve covering a major portion of the outer surface of the tube and at least one insulative end cap secured to an end of the tube in electrical isolating relation with the exterior of the tube. The end cap has attachment means for securing the end cap in aligned sealing relation with a through passage in the wall of a vessel and electrical circuit connect means in insulated relation within the end cap connected electrically to the conductive tube.

Claims

1. An electrode adapted for use in generating a high voltage electrostatic filed for use within a vessel containing a liquid medium to be acted thereupon, said electrode having an electrically conductive tube, and a liquid impervious dielectric sealing layer extending in protective, insulative, sealing relation over a major portion of the outer surface of said tube, the improvement comprising:

an electrically insulative end cap enclosing each end of said conductive tube and extending in sealing relation over said sealing layer, said end caps having unitary tension rod means extending in mechanically securing relation therebetween, one said end cap having attachment means for securing said end cap in aligned sealing relation within a through passage in a wall of said vessel to position said tube, in use, in immersed relation in said liquid within said vessel, and electrical connection means in said end cap connected in conducting relation with the interior of said tube, for the application of a high direct current voltage potential thereto.

2. The electrode as set forth in claim 1, wherein said tension rod includes a contact member engaging the interior of said tube in electrically conducting and mechanically secured relation therewith.

3. The electrode as set forth in claim 1, said conductive tube having a reinforcement disc secured therein adjacent an end of the tube to provide radial support to the tube.

4. The electrode as set forth in claim 1, said liquid impervious dielectric layer having a second such layer therebeneath, to substantially preclude the occurrence of pinhole penetration through said layers.