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. 30, 1982
Filed:
Sep. 22, 1980
Applicant:
Inventors:
Alan E Van Til, Itasca, IL (US);
James P Shoffner, Elk Grove Village, IL (US);
Assignee:
UOP Inc., Des Plaines, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C23F / ; C23F / ;
U.S. Cl.
CPC ...
148 / ; 148-635 ; 4271261 ; 4271266 ; 55-5 ;
Abstract
The electrical conductivity of metallic surfaces may be regenerated in situ by treating the surface with a regenerating agent in the form of a hydrogen halide such as hydrogen chloride. Hydrogen halide may be utilized in either liquid, gaseous or vaporous form. If so desired, an ammonium salt such as ammonium chloride may also be used to enhance the regenerative powers of the hydrogen halide. For example, the surface of steel may be treated with hydrogen chloride and ammonium chloride to enhance the formation of ferric oxide which possesses a greater electrical conductivity than does ferrous oxide.