公开(公告)号：US3613993A

公开(公告)日：1971-10-19

申请号：US3613993D

申请日：1968-10-28

Applicant: GOURDINE SYSTEMS INC

Inventor： GOURDINE MEREDITH C ,  COLLIER EDWARD L ,  LEWIS GERALD P ,  MCCRAE HAROLD ,  PORTER DONALD H

IPC: B05B5/025 ,  B05B5/053 ,  B05B5/02

CPC classification number: B05B5/0535 ,  B05B5/0533

Abstract: Apparatus and method for electrostatically charging a stream of atomized paint particles discharged from a spray gun. An emitter electrode is positioned in spaced relation to the end of the spray gun to establish a corona discharge from the electrode tip to a conductive portion of the gun end so that the direction of the discharge is opposite to the direction of flow of the particle stream. The apparatus may comprise an attachment unit for converting conventional spray guns to electrostatic spray guns, including a dielectric flow path-defining member downstream of the spray gun.

公开(公告)号：US3612923A

公开(公告)日：1971-10-12

申请号：US3612923D

申请日：1967-10-05

Applicant: GOURDINE SYSTEMS INC

Inventor： COLLIER EDWARD L ,  GOURDINE MEREDITH C ,  MCCRAE HAROLD W

IPC: H02N3/00

CPC classification number: H02N3/00

Abstract: An electrogasdynamic converter operating on a gaseous stream of the type including a flow channel having ionizing electrode means in an upstream portion to produce charges in the stream, and collector electrode means spaced downstream from the ionizing electrode means to neutralize the charges carried in the downstream direction by the flow. The converter is operated to establish in the intermediate section of the flow channel between the ionizing electrode means and the collector electrode a high resistance path at the boundary of the flow path for charges carried in the stream. The high resistance may be formed by a thin liquid or solid film at the flow path boundary, or by spaced conductive elements extending through a dielectric channel to be flush with the flow boundary and exposed to the stream. In the latter event, a thin resistive film may be deposited on the outside of the channel to have successive sections thereof connected between the conductive elements. A third alternative utilizes a flow channel constructed of a highly resistive conducting material.