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:
Feb. 22, 1977
Filed:
Apr. 20, 1976
Applicant:
Inventor:
Robert E Pierce, Abingdon, VA (US);
Assignee:
Westinghouse Electric Corporation, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05B / ;
U.S. Cl.
CPC ...
118629 ; 118D / ;
Abstract
An improved apparatus is disclosed for controlling the build on wire moving in a vertical electrostatic fluidized bed which has opposing vacuum chambers for controlling the position of the cloud of powder in the bed. Each vacuum chamber is provided with an opening to the atmosphere and with means for controlling the size of the opening. By 'spoiling' the vacuum in this manner the position of the cloud can be more precisely controlled thereby producing a more uniform coating on the wire.