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:
Jun. 22, 1982
Filed:
Sep. 18, 1980
Addison B Scholes, Muncie, IN (US);
Ball Corporation, Muncie, IN (US);
Abstract
Method and apparatus are disclosed for electrostatically dispersing lubricating particles onto the surfaces of electrically conductive substrates. In the method and apparatus, discrete sheets, for example, of electrically conductive substrate are moved through a housing in which the lubricating particles are deposited. The conveying means that carry the sheets through the housing electrically isolate the sheets in space while they are exposed to deposition of the particles. To avoid the accumulation of voltage on the sheets during deposition and to avoid inhibition of deposition that may result therefrom, at least two deposition chambers are used and each deposition chamber receives a supply of lubricating particles for deposition on the sheets. Independent electrode means are provided in each deposition chamber. Voltages of opposite polarities are applied to the independent electrode means of each deposition chamber to electrically charge the particles in each deposition chamber with opposite polarities and to deposit oppositely charged particles on the sheets.