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:
Jan. 27, 1976
Filed:
Jan. 02, 1974
Applicant:
Inventors:
Daniel L Goffredo, Riverton, NJ (US);
Conrad Dale Shakely, Spring Mills, PA (US);
Assignee:
Chemcut Corporation, State College, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B08B / ; B05C / ; C23F / ; G03C / ;
U.S. Cl.
CPC ...
156 18 ; 96 4 / ; 134 37 ; 156 19 ; 156 23 ; 156345 ; 427424 ;
Abstract
Treated articles such as printed circuit boards that have been etched with an etchant or treated with a solvent, are delivered into a zone of sufficiently high humidity to prevent drying of a liquid treatment fluid on the articles, and wherein the treatment fluid is 'blown off' the articles by pressurized air, in the high humidity environment, with the treatment fluid then being delivered for re-use at a prior station. Alternately, the treatment fluid is atomized, entrained in the pressurized air stream and 'blown on' the articles, whereby the treatment fluid is efficiently and uniformly applied thereto.