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:
Aug. 19, 1986
Filed:
Mar. 07, 1985
Applicant:
Inventors:
William J Dunford, Watertown, CT (US);
Bedrich Hajek, New Haven, CT (US);
Assignee:
Electrostatic Technology Incorporated, New Haven, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
427 32 ; 427 27 ; 427185 ; 118621 ; 118627 ;
Abstract
An electrostatic fluidized bed coating method, apparatus and system utilize a vortex effect within the particle cloud to produce coatings of exceptional uniformity upon a workpiece. The vortex effect produces a secondary particle cloud and a secondary electrostatic field, which contribute to the uniformity of the deposit, and the amount of metal structure included in the unit may be minimized, also to enhance uniformity. Operation can be carried out at voltages that are significantly reduced from those required for similar systems known in the art.