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:
Mar. 01, 1994
Filed:
Jul. 22, 1992
Applicant:
Inventors:
John Stein, Ada, MI (US);
Philip M Whitney, Whitehall, MI (US);
Assignee:
Grand Northern Products, Ltd., Grand Rapids, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B08B / ;
U.S. Cl.
CPC ...
134-7 ; 134-8 ; 134 2212 ; 134 2218 ; 134 26 ; 134 37 ; 134 221 ;
Abstract
A process for blast cleaning an article having internal passageways that produces a clean, weldable, and brazable article that is free of blast media residue. The process includes blasting the internal passageways of the article with a soluble blast media, rinsing the article with a solvent in which the blast media is soluble, and removing the solvent from the internal passageways of the article using a stream of air.