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:
Apr. 19, 1977
Filed:
Jan. 12, 1976
William A Donakowski, Dearborn Heights, MI (US);
John R Morgan, Dearborn Heights, MI (US);
Ford Motor Company, Dearborn, MI (US);
Abstract
A cost saving method for protecting an engine element against operation galling and corrosion is disclosed. The element, particularly a piston, is cast of aluminum and cleaned free of dirt and organic matter. A warm stream of an aqueous solution containing a protective metal agent is directed onto a selected zone of the element. The agent consists essentially of potassium stannate and the zone is preferably the middle region of a piston skirt extending from the upper skirt periphery to lower skirt extremity (tail). The stream is maintained as a laminar flow as it traverses the selected zone. An ultra-thin protective coating is adherently deposited on the zone of the piston.