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:
Feb. 21, 1978
Filed:
Apr. 28, 1976
Applicant:
Inventors:
Richard D Burlingame, Cleveland Heights, OH (US);
Michael Markels, Jr, Springfield, VA (US);
Assignees:
Ogden Metals, Inc., Cleveland, OH (US);
Versar, Inc., Springfield, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23F / ;
U.S. Cl.
CPC ...
427216 ; 427242 ; 428403 ; 428921 ; 148-6 ;
Abstract
A method of passivating iron-containing cuttings and turnings to prevent overheating thereof during storage and transportation, wherein the cuttings and turnings are fed through a rotating tumbler drum while being mixed with an aqueous slurry of calcium oxide or hydroxide, the tumbling being continued until the cuttings or turnings are thoroughly coated with the slurry. In a preferred embodiment, the cuttings and turnings are passed through a tumbling drum continuously, with the slurry being sprayed onto them as they enter the drum.