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:
Jul. 30, 1985
Filed:
Apr. 11, 1983
Applicant:
Inventors:
Joseph V Otrhalek, Dearborn, MI (US);
Donald R Gerard, Bowling Green, KY (US);
Assignee:
Detrex Chemical Industries, Inc., Southfield, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23F / ; C23F / ;
U.S. Cl.
CPC ...
148-616 ; 148-62 ; 148-627 ;
Abstract
A method for forming a chromate conversion coating on aluminum surfaces is described in which an aluminum surface is immersed in an aqueous acidic solution containing hexavalent chromium and the aluminum surface and the solution are subjected to ultrasonic energy thus reducing the need for including environmentally harmful accelerator components in said solution.